правки

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/AgencyBusinessLogicContract.cs

@@ -0,0 +1,74 @@
+using MagicCarpetContracts.BusinessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class AgencyBusinessLogicContract(IAgencyStorageContract agencyStorageContract, ILogger logger) : IAgencyBusinessLogicContract
+{
+    private readonly IAgencyStorageContract _agencyStorageContract = agencyStorageContract;
+    private readonly ILogger _logger = logger;
+    public List<AgencyDataModel> GetAllComponents()
+    {
+        _logger.LogInformation("GetAllComponents");
+        return _agencyStorageContract.GetList() ?? throw new NullListException();
+
+        return [];
+    }
+
+    public AgencyDataModel GetComponentByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (!data.IsGuid())
+        {
+            throw new ElementNotFoundException(data);
+        }
+        return _agencyStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+
+        return new("", TourType.None, 0, []);
+    }
+
+    public void InsertComponent(AgencyDataModel agencyDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(agencyDataModel));
+        ArgumentNullException.ThrowIfNull(agencyDataModel);
+        agencyDataModel.Validate();
+        _agencyStorageContract.AddElement(agencyDataModel);
+    }
+
+    public void UpdateComponent(AgencyDataModel agencyDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(agencyDataModel));
+        ArgumentNullException.ThrowIfNull(agencyDataModel);
+        agencyDataModel.Validate();
+        _agencyStorageContract.UpdElement(agencyDataModel);
+    }
+
+    public void DeleteComponent(string id)
+    {
+        logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _agencyStorageContract.DelElement(id);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/SaleBusinessLogicContract.cs

@@ -13,10 +13,11 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetBusinessLogic.Implementations;
 
-internal class SaleBusinessLogicContract(ISaleStorageContract saleStorageContract, ILogger logger) : ISaleBusinessLogicContract
+internal class SaleBusinessLogicContract(ISaleStorageContract saleStorageContract, IAgencyStorageContract agencyStorageContract, ILogger logger) : ISaleBusinessLogicContract
 {
     private readonly ILogger _logger = logger;
     private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+    private readonly IAgencyStorageContract _agencyStorageContract = agencyStorageContract;
 
     public List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate)
     {
@@ -101,6 +102,10 @@ internal class SaleBusinessLogicContract(ISaleStorageContract saleStorageContrac
         _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(saleDataModel));
         ArgumentNullException.ThrowIfNull(saleDataModel);
         saleDataModel.Validate();
+        if (!_agencyStorageContract.CheckComponents(saleDataModel))
+        {
+            throw new InsufficientException("Dont have tour in agency");
+        }
         _saleStorageContract.AddElement(saleDataModel);
     }
 

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/SuppliesBusinessLogicContract.cs

@@ -0,0 +1,61 @@
+using MagicCarpetContracts.BusinessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class SuppliesBusinessLogicContract(ISuppliesStorageContract suppliesStorageContract, ILogger logger) : ISuppliesBusinessLogicContract
+{
+    private readonly ISuppliesStorageContract _suppliesStorageContract = suppliesStorageContract;
+    private readonly ILogger _logger = logger;
+
+    public List<SuppliesDataModel> GetAllComponents()
+    {
+        _logger.LogInformation("GetAllComponents");
+        return _suppliesStorageContract.GetList() ?? throw new NullListException();
+
+        return [];
+    }
+
+    public SuppliesDataModel GetComponentByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (!data.IsGuid())
+        {
+            throw new ElementNotFoundException(data);
+        }
+        return _suppliesStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+
+        return new("", TourType.None, DateTime.UtcNow, 0, []);
+    }
+
+    public void InsertComponent(SuppliesDataModel suppliesDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(suppliesDataModel));
+        ArgumentNullException.ThrowIfNull(suppliesDataModel);
+        suppliesDataModel.Validate();
+        _suppliesStorageContract.AddElement(suppliesDataModel);
+    }
+
+    public void UpdateComponent(SuppliesDataModel suppliesDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(suppliesDataModel));
+        ArgumentNullException.ThrowIfNull(suppliesDataModel);
+        suppliesDataModel.Validate();
+        _suppliesStorageContract.UpdElement(suppliesDataModel);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/TourBusinessLogicContract.cs

@@ -56,7 +56,6 @@ internal class TourBusinessLogicContract(ITourStorageContract tourStorageContrac
         _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(tourDataModel));
         ArgumentNullException.ThrowIfNull(tourDataModel);
         tourDataModel.Validate();
-        _tourStorageContract.AddElement(tourDataModel);
     }
 
     public void UpdateTour(TourDataModel tourDataModel)
@@ -64,7 +63,6 @@ internal class TourBusinessLogicContract(ITourStorageContract tourStorageContrac
         _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(tourDataModel));
         ArgumentNullException.ThrowIfNull(tourDataModel);
         tourDataModel.Validate();
-        _tourStorageContract.UpdElement(tourDataModel);
     }
 
     public void DeleteTour(string id)

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/IAgencyBusinessLogicContract.cs

@@ -0,0 +1,17 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BusinessLogicContracts;
+
+public interface IAgencyBusinessLogicContract
+{
+    List<AgencyDataModel> GetAllComponents();
+    AgencyDataModel GetComponentByData(string data);
+    void InsertComponent(AgencyDataModel agencyDataModel);
+    void UpdateComponent(AgencyDataModel agencyDataModel);
+    void DeleteComponent(string id);
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/ISuppliesBusinessLogicContract.cs

@@ -0,0 +1,16 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BusinessLogicContracts;
+
+public interface ISuppliesBusinessLogicContract
+{
+    List<SuppliesDataModel> GetAllComponents();
+    SuppliesDataModel GetComponentByData(string data);
+    void InsertComponent(SuppliesDataModel componentDataModel);
+    void UpdateComponent(SuppliesDataModel componentDataModel);
+}

MagicCarpetProject/MagicCarpetContracts/DataModels/AgencyDataModel.cs

@@ -0,0 +1,33 @@
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.Infrastructure;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.DataModels;
+
+public class AgencyDataModel(string id, TourType tourType, int count, List<TourAgencyDataModel> tours) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public TourType Type { get; private set; } = tourType;
+    public int Count { get; private set; } = count;
+    public List<TourAgencyDataModel> Tours { get; private set; } = tours;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+        if (Type == TourType.None)
+            throw new ValidationException("Field Type is empty");
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+        if ((Tours?.Count ?? 0) == 0)
+            throw new ValidationException("The sale must include tours");
+    }
+}

MagicCarpetProject/MagicCarpetContracts/DataModels/SuppliesDataModel.cs

@@ -0,0 +1,35 @@
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.Infrastructure;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace MagicCarpetContracts.DataModels;
+
+public class SuppliesDataModel(string id, TourType tourType, DateTime date, int count, List<TourSuppliesDataModel> tours) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public TourType Type { get; private set; } = tourType;
+    public DateTime ProductuionDate { get; private set; } = date;
+    public int Count { get; private set; } = count;
+    public List<TourSuppliesDataModel> Tours { get; private set; } = tours;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+        if (Type == TourType.None)
+            throw new ValidationException("Field Type is empty");
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+        if ((Tours?.Count ?? 0) == 0)
+            throw new ValidationException("The sale must include tours");
+    }
+}

MagicCarpetProject/MagicCarpetContracts/DataModels/TourAgencyDataModel.cs

@@ -0,0 +1,32 @@
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.Infrastructure;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.DataModels;
+
+public class TourAgencyDataModel(string agencyId, string tourId, int count) : IValidation
+{
+    public string AgencyId { get; private set; } = agencyId;
+    public string TourId { get; private set; } = tourId;
+    public int Count { get; private set; } = count;
+
+    public void Validate()
+    {
+        if (AgencyId.IsEmpty())
+            throw new ValidationException("Field AgencyId is empty");
+        if (!AgencyId.IsGuid())
+            throw new ValidationException("The value in the field AgencyId is not a unique identifier");
+        if (TourId.IsEmpty())
+            throw new ValidationException("Field TourId is empty");
+        if (!TourId.IsGuid())
+            throw new ValidationException("The value in the field TourId is not a unique identifier");
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+    }
+}

MagicCarpetProject/MagicCarpetContracts/DataModels/TourDataModel.cs

@@ -18,7 +18,7 @@ public class TourDataModel(string id, string tourName, string tourCountry, doubl
     public string TourName { get; private set; } = tourName;
     public string TourCountry { get; private set; } = tourCountry;
     public double Price { get; private set; } = price;
-    public TourType Type { get; private set; } = tourType;
+    public TourType TourType { get; private set; } = tourType;
 
     public void Validate()
     {
@@ -32,7 +32,7 @@ public class TourDataModel(string id, string tourName, string tourCountry, doubl
             throw new ValidationException("Field TourCountry is empty");
         if (Price <= 0)
             throw new ValidationException("Field Price is less than or equal to 0");
-        if (Type == TourType.None)
+        if (TourType == TourType.None)
             throw new ValidationException("Field Type is empty");
     }
 }

MagicCarpetProject/MagicCarpetContracts/DataModels/TourSuppliesDataModel.cs

@@ -0,0 +1,32 @@
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.Infrastructure;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.DataModels;
+
+public class TourSuppliesDataModel(string suppliesId, string tourId, int count) : IValidation
+{
+    public string SuppliesId { get; private set; } = suppliesId;
+    public string TourId { get; private set; } = tourId;
+    public int Count { get; private set; } = count;
+
+    public void Validate()
+    {
+        if (SuppliesId.IsEmpty())
+            throw new ValidationException("Field SuppliesId is empty");
+        if (!SuppliesId.IsGuid())
+            throw new ValidationException("The value in the field SuppliesId is not a unique identifier");
+        if (TourId.IsEmpty())
+            throw new ValidationException("Field TourId is empty");
+        if (!TourId.IsGuid())
+            throw new ValidationException("The value in the field BlandId is not a unique identifier");
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+    }
+}

MagicCarpetProject/MagicCarpetContracts/Exceptions/InsufficientException.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class InsufficientException(string message) : Exception(message)
+{
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/IAgencyStorageContract.cs

@@ -0,0 +1,18 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface IAgencyStorageContract
+{
+    List<AgencyDataModel> GetList();
+    AgencyDataModel GetElementById(string id);
+    void AddElement(AgencyDataModel agencyDataModel);
+    void UpdElement(AgencyDataModel agencyDataModel);
+    void DelElement(string id);
+    bool CheckComponents(SaleDataModel saleDataModel);
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/ISuppliesStorageContract.cs

@@ -0,0 +1,16 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface ISuppliesStorageContract
+{
+    List<SuppliesDataModel> GetList(DateTime? startDate = null);
+    SuppliesDataModel GetElementById(string id);
+    void AddElement(SuppliesDataModel suppliesDataModel);
+    void UpdElement(SuppliesDataModel suppliesDataModel);
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/AgencyStorageContract.cs

@@ -0,0 +1,148 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class AgencyStorageContract : IAgencyStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public AgencyStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Agency, AgencyDataModel>()
+       .ConstructUsing(src => new AgencyDataModel(
+           src.Id,
+           src.Type,
+           src.Count,
+           _mapper.Map<List<TourAgencyDataModel>>(src.Tours)
+       ));
+
+            cfg.CreateMap<AgencyDataModel, Agency>();
+            cfg.CreateMap<TourAgencyDataModel, TourAgency>().ReverseMap();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<AgencyDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Agencies.Select(x => _mapper.Map<AgencyDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public AgencyDataModel GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<AgencyDataModel>(GetAgencyById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(AgencyDataModel agencyDataModel)
+    {
+        try
+        {
+            _dbContext.Agencies.Add(_mapper.Map<Agency>(agencyDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(AgencyDataModel agencyDataModel)
+    {
+        try
+        {
+            var element = GetAgencyById(agencyDataModel.Id) ?? throw new ElementNotFoundException(agencyDataModel.Id);
+            _dbContext.Agencies.Update(_mapper.Map(agencyDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetAgencyById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Agencies.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public bool CheckComponents(SaleDataModel saleDataModel)
+    {
+        using (var transaction = _dbContext.Database.BeginTransaction())
+        {
+            foreach (SaleTourDataModel sale_tour in saleDataModel.Tours)
+            {
+                var tour = _dbContext.Tours.FirstOrDefault(x => x.Id == sale_tour.TourId);
+                var agency = _dbContext.Agencies.FirstOrDefault(x => x.Type == tour.TourType && x.Count >= sale_tour.Count);
+
+                if (agency == null)
+                {
+                    transaction.Rollback();
+                    return false;
+                }
+                if (agency.Count - sale_tour.Count == 0)
+                {
+                    DelElement(agency.Id);
+                }
+                else
+                {
+                    agency.Count -= sale_tour.Count;
+                }
+            }
+            transaction.Commit();
+            _dbContext.SaveChanges();
+            return true;
+        }
+    }
+
+    private Agency? GetAgencyById(string id) => _dbContext.Agencies.FirstOrDefault(x => x.Id == id);
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/SuppliesStorageContract.cs

@@ -0,0 +1,100 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class SuppliesStorageContract : ISuppliesStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SuppliesStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Supplies, SuppliesDataModel>()
+       .ConstructUsing(src => new SuppliesDataModel(
+           src.Id,
+           src.Type,
+           src.ProductuionDate,
+           src.Count,
+           _mapper.Map<List<TourSuppliesDataModel>>(src.Tours)
+       ));
+
+            cfg.CreateMap<SuppliesDataModel, Supplies>();
+            cfg.CreateMap<TourSuppliesDataModel, TourSupplies>().ReverseMap();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SuppliesDataModel> GetList(DateTime? startDate = null)
+    {
+        try
+        {
+            return [.. _dbContext.Supplieses.Select(x => _mapper.Map<SuppliesDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public SuppliesDataModel GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<SuppliesDataModel>(GetSuppliesById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(SuppliesDataModel suppliesDataModel)
+    {
+        try
+        {
+            _dbContext.Supplieses.Add(_mapper.Map<Supplies>(suppliesDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(SuppliesDataModel suppliesDataModel)
+    {
+        try
+        {
+            var element = GetSuppliesById(suppliesDataModel.Id) ?? throw new ElementNotFoundException(suppliesDataModel.Id);
+            _dbContext.Supplieses.Update(_mapper.Map(suppliesDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Supplies? GetSuppliesById(string id) => _dbContext.Supplieses.FirstOrDefault(x => x.Id == id);
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/TourStorageContract.cs

@@ -7,6 +7,7 @@ using Microsoft.EntityFrameworkCore;
 using Npgsql;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -23,10 +24,9 @@ internal class TourStorageContract : ITourStorageContract
         _dbContext = dbContext;
         var config = new MapperConfiguration(cfg =>
         {
-            cfg.CreateMap<Tour, TourDataModel>()
+            cfg.CreateMap<Tour, TourDataModel>();
-                .ConstructUsing(src => new TourDataModel(src.Id, src.TourName, src.TourCountry, src.Price, src.Type));
             cfg.CreateMap<TourDataModel, Tour>();
-            cfg.CreateMap<TourHistory, TourHistoryDataModel>();
+            cfg.CreateMap<TourHistory, TourHistoryDataModel>(); ;
         });
         _mapper = new Mapper(config);
     }

MagicCarpetProject/MagicCarpetDatabase/MagicCarpetDbContext.cs

@@ -9,7 +9,7 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase;
 
-internal class MagicCarpetDbContext(IConfigurationDatabase configurationDatabase) : DbContext
+public class MagicCarpetDbContext(IConfigurationDatabase configurationDatabase) : DbContext
 {
     private readonly IConfigurationDatabase? _configurationDatabase = configurationDatabase;
 
@@ -38,6 +38,10 @@ internal class MagicCarpetDbContext(IConfigurationDatabase configurationDatabase
             .HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");
 
         modelBuilder.Entity<SaleTour>().HasKey(x => new { x.SaleId, x.TourId });
+
+        modelBuilder.Entity<TourSupplies>().HasKey(x => new { x.SuppliesId, x.TourId });
+
+        modelBuilder.Entity<TourAgency>().HasKey(x => new { x.AgencyId, x.TourId });
     }
 
     public DbSet<Client> Clients { get; set; }
@@ -55,4 +59,8 @@ internal class MagicCarpetDbContext(IConfigurationDatabase configurationDatabase
     public DbSet<SaleTour> SaleTours { get; set; }
 
     public DbSet<Employee> Employees { get; set; }
+    public DbSet<Supplies> Supplieses { get; set; }
+    public DbSet<Agency> Agencies { get; set; }
+    public DbSet<TourSupplies> TourSupplieses { get; set; }
+    public DbSet<TourAgency> TourAgensies { get; set; }
 }

MagicCarpetProject/MagicCarpetDatabase/Models/Agency.cs

@@ -0,0 +1,21 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class Agency
+{
+    public required string Id { get; set; }
+    public required TourType Type { get; set; }
+    public required int Count { get; set; }
+
+    [ForeignKey("AgencyId")]
+    public List<TourAgency>? Tours { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Client.cs

@@ -10,7 +10,7 @@ using System.Threading.Tasks;
 namespace MagicCarpetDatabase.Models;
 
 [AutoMap(typeof(ClientDataModel), ReverseMap = true)]
-internal class Client
+public class Client
 {
     public required string Id { get; set; }
 

MagicCarpetProject/MagicCarpetDatabase/Models/Employee.cs

@@ -10,7 +10,7 @@ using System.Threading.Tasks;
 namespace MagicCarpetDatabase.Models;
 
 [AutoMap(typeof(EmployeeDataModel), ReverseMap = true)]
-internal class Employee
+public class Employee
 {
     public required string Id { get; set; }
 

MagicCarpetProject/MagicCarpetDatabase/Models/Post.cs

@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase.Models;
 
-internal class Post
+public class Post
 {
     public required string Id { get; set; } = Guid.NewGuid().ToString();
     public required string PostId { get; set; }

MagicCarpetProject/MagicCarpetDatabase/Models/Salary.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase.Models;
 
-internal class Salary
+public class Salary
 {
     public string Id { get; set; } = Guid.NewGuid().ToString();
     public required string EmployeeId { get; set; }

MagicCarpetProject/MagicCarpetDatabase/Models/Sale.cs

@@ -9,7 +9,7 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase.Models;
 
-internal class Sale
+public class Sale
 {
     public string Id { get; set; } = Guid.NewGuid().ToString();
 

MagicCarpetProject/MagicCarpetDatabase/Models/SaleTour.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase.Models;
 
-internal class SaleTour
+public class SaleTour
 {
     public required string SaleId { get; set; } 
 

MagicCarpetProject/MagicCarpetDatabase/Models/Supplies.cs

@@ -0,0 +1,22 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class Supplies
+{
+    public required string Id { get; set; }
+    public required TourType Type { get; set; }
+    public DateTime ProductuionDate { get; set; }
+    public required int Count { get; set; }
+
+    [ForeignKey("SuppliesId")]
+    public List<TourSupplies>? Tours { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Tour.cs

@@ -1,4 +1,6 @@
-using MagicCarpetContracts.Enums;
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
@@ -9,15 +11,20 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase.Models;
 
-internal class Tour
+[AutoMap(typeof(TourDataModel), ReverseMap = true)]
+public class Tour
 {
     public required string Id { get; set; } 
     public required string TourName { get; set; } 
     public string? TourCountry { get; set; } 
     public double Price { get; set; } 
-    public required TourType Type { get; set; }
+    public required TourType TourType { get; set; }
     [ForeignKey("TourId")]
     public List<SaleTour>? SaleTours { get; set; }
     [ForeignKey("TourId")]
     public List<TourHistory>? TourHistories { get; set; }
+    [ForeignKey("SuppliesesId")]
+    public List<TourSupplies>? TourSupplies { get; set; }
+    [ForeignKey("AgenciesId")]
+    public List<TourAgency>? TourAgency { get; set; }
 }

MagicCarpetProject/MagicCarpetDatabase/Models/TourAgency.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class TourAgency
+{
+    public required string AgencyId { get; set; }
+    public required string TourId { get; set; }
+    public int Count { get; set; }
+    public Agency? Agencies { get; set; }
+    public Tour? Tours { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/TourHistory.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetDatabase.Models;
 
-internal class TourHistory
+public class TourHistory
 {
     public string Id { get; set; } = Guid.NewGuid().ToString();
     public required string TourId { get; set; }

MagicCarpetProject/MagicCarpetDatabase/Models/TourSupplies.cs

@@ -0,0 +1,19 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+[AutoMap(typeof(TourSuppliesDataModel), ReverseMap = true)]
+public class TourSupplies
+{
+    public required string SuppliesId { get; set; }
+    public required string TourId { get; set; }
+    public int Count { get; set; }
+    public Supplies? Supplies { get; set; }
+    public Tour? Tours { get; set; }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/AgencyBusinessLogicContractTests.cs

@@ -0,0 +1,296 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.BusinessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class AgencyBusinessLogicContractTests 
+{
+    private IAgencyBusinessLogicContract _warehouseBusinessLogicContract;
+    private Mock<IAgencyStorageContract> _warehouseStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _warehouseStorageContract = new Mock<IAgencyStorageContract>();
+        _warehouseBusinessLogicContract = new AgencyBusinessLogicContract(_warehouseStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _warehouseStorageContract.Reset();
+    }
+
+    public void GetAllSupplies_ReturnListOfRecords_Test()
+    {
+        // Arrange
+        var listOriginal = new List<AgencyDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), TourType.Beach, 1, []),
+            new(Guid.NewGuid().ToString(), TourType.Beach, 1, []),
+            new(Guid.NewGuid().ToString(), TourType.Beach, 1, []),
+        };
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        // Act
+        var list = _warehouseBusinessLogicContract.GetAllComponents();
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+
+    [Test]
+    public void GetAllSupplies_ReturnEmptyList_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns([]);
+        // Act
+        var list = _warehouseBusinessLogicContract.GetAllComponents();
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _warehouseStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSupplies_ReturnNull_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns((List<AgencyDataModel>)null);
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetAllComponents(), Throws.TypeOf<NullListException>());
+        _warehouseStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSupplies_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetAllComponents(), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetSuppliesByData_GetById_ReturnRecord_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new AgencyDataModel(id, TourType.Beach, 1, []);
+        _warehouseStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        // Act
+        var element = _warehouseBusinessLogicContract.GetComponentByData(id);
+        // Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentsByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetComponentByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _warehouseBusinessLogicContract.GetComponentByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetSuppliesByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetComponentByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSuppliesByData_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetComponentByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupplies_CorrectRecord_Test()
+    {
+        // Arrange
+        var record = new AgencyDataModel(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _warehouseStorageContract.Setup(x => x.AddElement(It.IsAny<AgencyDataModel>()));
+        // Act
+        _warehouseBusinessLogicContract.InsertComponent(record);
+        // Assert
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupplies_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.AddElement(It.IsAny<AgencyDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertComponent(new(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupplies_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertComponent(null), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<AgencyDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertComponents_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertComponent(new AgencyDataModel("id", TourType.Beach, 1, [])), Throws.TypeOf<ValidationException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<AgencyDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertSupplies_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.AddElement(It.IsAny<AgencyDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertComponent(new(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_CorrectRecord_Test()
+    {
+        // Arrange
+        var record = new AgencyDataModel(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<AgencyDataModel>()));
+        // Act
+        _warehouseBusinessLogicContract.UpdateComponent(record);
+        // Assert
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_RecordWithIncorrectData_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<AgencyDataModel>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<AgencyDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateComponent(null), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<AgencyDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateComponents_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateComponent(new AgencyDataModel(Guid.NewGuid().ToString(), TourType.Beach, 1, [])), Throws.TypeOf<ValidationException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<AgencyDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateSupplies_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<AgencyDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), TourType.Beach, 1,
+            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<AgencyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteComponents_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _warehouseStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _warehouseBusinessLogicContract.DeleteComponent(id);
+        //Assert
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once); Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteComponents_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _warehouseStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteComponent(Guid.NewGuid().ToString()),
+        Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteComponents_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteComponent(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteComponent(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteComponents_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteComponent("id"),
+        Throws.TypeOf<ValidationException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteComponents_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _warehouseStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteComponent(Guid.NewGuid().ToString()),
+        Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/SaleBusinessLogicContractTests.cs

@@ -18,18 +18,22 @@ internal class SaleBusinessLogicContractTests
 {
     private SaleBusinessLogicContract _saleBusinessLogicContract;
     private Mock<ISaleStorageContract> _saleStorageContract;
+    private Mock<IAgencyStorageContract> _agencyStorageContract;
 
     [OneTimeSetUp]
     public void OneTimeSetUp()
     {
         _saleStorageContract = new Mock<ISaleStorageContract>();
-        _saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object, new Mock<ILogger>().Object);
+        _agencyStorageContract = new Mock<IAgencyStorageContract>();
+        _saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object,
+            _agencyStorageContract.Object, new Mock<ILogger>().Object);
     }
 
     [TearDown]
     public void TearDown()
     {
         _saleStorageContract.Reset();
+        _agencyStorageContract.Reset();
     }
 
     [Test]
@@ -396,6 +400,7 @@ internal class SaleBusinessLogicContractTests
         var flag = false;
         var record = new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.None, 10,
             false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _agencyStorageContract.Setup(x => x.CheckComponents(It.IsAny<SaleDataModel>())).Returns(true);
         _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>()))
             .Callback((SaleDataModel x) =>
             {
@@ -409,6 +414,7 @@ internal class SaleBusinessLogicContractTests
         //Act
         _saleBusinessLogicContract.InsertSale(record);
         //Assert
+        _agencyStorageContract.Verify(x => x.CheckComponents(It.IsAny<SaleDataModel>()), Times.Once);
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
         Assert.That(flag);
     }
@@ -417,11 +423,13 @@ internal class SaleBusinessLogicContractTests
     public void InsertSale_RecordWithExistsData_ThrowException_Test()
     {
         //Arrange
+        _agencyStorageContract.Setup(x => x.CheckComponents(It.IsAny<SaleDataModel>())).Returns(true);
         _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>())).Throws(new ElementExistsException("Data", "Data"));
         //Act&Assert
         Assert.That(() => _saleBusinessLogicContract.InsertSale(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
             Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
+        _agencyStorageContract.Verify(x => x.CheckComponents(It.IsAny<SaleDataModel>()), Times.Once);
     }
 
     [Test]
@@ -444,13 +452,27 @@ internal class SaleBusinessLogicContractTests
     public void InsertSale_StorageThrowError_ThrowException_Test()
     {
         //Arrange
+        _agencyStorageContract.Setup(x => x.CheckComponents(It.IsAny<SaleDataModel>())).Returns(true);
         _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>())).Throws(new StorageException(new InvalidOperationException()));
         //Act&Assert
         Assert.That(() => _saleBusinessLogicContract.InsertSale(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
             Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _agencyStorageContract.Verify(x => x.CheckComponents(It.IsAny<SaleDataModel>()), Times.Once);
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
     }
 
+    [Test]
+    public void InsertSale_InsufficientError_ThrowException_Test()
+    {
+        //Arrange
+        _agencyStorageContract.Setup(x => x.CheckComponents(It.IsAny<SaleDataModel>())).Returns(false);
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false,
+            [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<InsufficientException>());
+        //Act&Assert
+        _agencyStorageContract.Verify(x => x.CheckComponents(It.IsAny<SaleDataModel>()), Times.Once);
+    }
+
     [Test]
     public void CancelSale_CorrectRecord_Test()
     {

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/SuppliesBusinessLogicContractTests.cs

@@ -0,0 +1,242 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class SuppliesBusinessLogicContractTests 
+{
+    private SuppliesBusinessLogicContract _suppliesBusinessLogicContract;
+    private Mock<ISuppliesStorageContract> _suppliesStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _suppliesStorageContract = new Mock<ISuppliesStorageContract>();
+        _suppliesBusinessLogicContract = new SuppliesBusinessLogicContract(_suppliesStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _suppliesStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllSupplies_ReturnListOfRecords_Test()
+    {
+        // Arrange
+        var listOriginal = new List<SuppliesDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1, []),
+            new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1, []),
+            new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1, []),
+        };
+        _suppliesStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>())).Returns(listOriginal);
+        // Act
+        var list = _suppliesBusinessLogicContract.GetAllComponents();
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+
+    [Test]
+    public void GetAllSupplies_ReturnEmptyList_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>())).Returns([]);
+        // Act
+        var list = _suppliesBusinessLogicContract.GetAllComponents();
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _suppliesStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSupplies_ReturnNull_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>())).Returns((List<SuppliesDataModel>)null);
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.GetAllComponents(), Throws.TypeOf<NullListException>());
+        _suppliesStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSupplies_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.GetAllComponents(), Throws.TypeOf<StorageException>());
+        _suppliesStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSuppliesByData_GetById_ReturnRecord_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new SuppliesDataModel(id,TourType.Beach, DateTime.Now, 1, []);
+        _suppliesStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        // Act
+        var element = _suppliesBusinessLogicContract.GetComponentByData(id);
+        // Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _suppliesStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentsByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _suppliesBusinessLogicContract.GetComponentByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _suppliesBusinessLogicContract.GetComponentByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _suppliesStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetSuppliesByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.GetComponentByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _suppliesStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSuppliesByData_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.GetComponentByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _suppliesStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupplies_CorrectRecord_Test()
+    {
+        // Arrange
+        var record = new SuppliesDataModel(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _suppliesStorageContract.Setup(x => x.AddElement(It.IsAny<SuppliesDataModel>()));
+        // Act
+        _suppliesBusinessLogicContract.InsertComponent(record);
+        // Assert
+        _suppliesStorageContract.Verify(x => x.AddElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupplies_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.AddElement(It.IsAny<SuppliesDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.InsertComponent(new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _suppliesStorageContract.Verify(x => x.AddElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupplies_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.InsertComponent(null), Throws.TypeOf<ArgumentNullException>());
+        _suppliesStorageContract.Verify(x => x.AddElement(It.IsAny<SuppliesDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertComponents_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _suppliesBusinessLogicContract.InsertComponent(new SuppliesDataModel("id", TourType.Beach, DateTime.UtcNow, 1, [])), Throws.TypeOf<ValidationException>());
+        _suppliesStorageContract.Verify(x => x.AddElement(It.IsAny<SuppliesDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertSupplies_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.AddElement(It.IsAny<SuppliesDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.InsertComponent(new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _suppliesStorageContract.Verify(x => x.AddElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_CorrectRecord_Test()
+    {
+        // Arrange
+        var record = new SuppliesDataModel(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _suppliesStorageContract.Setup(x => x.UpdElement(It.IsAny<SuppliesDataModel>()));
+        // Act
+        _suppliesBusinessLogicContract.UpdateComponent(record);
+        // Assert
+        _suppliesStorageContract.Verify(x => x.UpdElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_RecordWithIncorrectData_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.UpdElement(It.IsAny<SuppliesDataModel>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementNotFoundException>());
+        _suppliesStorageContract.Verify(x => x.UpdElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.UpdElement(It.IsAny<SuppliesDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _suppliesStorageContract.Verify(x => x.UpdElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateSupplies_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.UpdateComponent(null), Throws.TypeOf<ArgumentNullException>());
+        _suppliesStorageContract.Verify(x => x.UpdElement(It.IsAny<SuppliesDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateComponents_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _suppliesBusinessLogicContract.UpdateComponent(new SuppliesDataModel(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1, [])), Throws.TypeOf<ValidationException>());
+        _suppliesStorageContract.Verify(x => x.UpdElement(It.IsAny<SuppliesDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateSupplies_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _suppliesStorageContract.Setup(x => x.UpdElement(It.IsAny<SuppliesDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _suppliesBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1,
+            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _suppliesStorageContract.Verify(x => x.UpdElement(It.IsAny<SuppliesDataModel>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/TourBusinessLogicContractTests.cs

@@ -3,6 +3,7 @@ using MagicCarpetContracts.DataModels;
 using MagicCarpetContracts.Enums;
 using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetTests.DataModelTests;
 using Microsoft.Extensions.Logging;
 using Moq;
 using System;
@@ -154,7 +155,7 @@ internal class TourBusinessLogicContractTests
     {
         //Arrange
         var id = Guid.NewGuid().ToString();
-        var record = new TourDataModel(id, "name","country", 10, TourType.Ski);
+        var record = new TourDataModel(id, "name", "country", 10, TourType.Ski);
         _tourStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
         //Act
         var element = _tourBusinessLogicContract.GetTourByData(id);
@@ -183,7 +184,7 @@ internal class TourBusinessLogicContractTests
     {
         //Arrange
         var country = "country";
-        var record = new TourDataModel(Guid.NewGuid().ToString(), "name", country, 10, TourType.Ski);
+        var record = new TourDataModel(Guid.NewGuid().ToString(), "name", country, 10, TourType.Ski);  
         _tourStorageContract.Setup(x => x.GetElementByName(country)).Returns(record);
         //Act
         var element = _tourBusinessLogicContract.GetTourByData(country);
@@ -249,7 +250,7 @@ internal class TourBusinessLogicContractTests
             .Callback((TourDataModel x) =>
             {
                 flag = x.Id == record.Id && x.TourName == record.TourName && x.TourCountry == record.TourCountry 
-                    && x.Price == record.Price && x.Type == record.Type;
+                    && x.Price == record.Price && x.TourType == record.TourType;
             });
         //Act
         _tourBusinessLogicContract.InsertTour(record);
@@ -288,10 +289,18 @@ internal class TourBusinessLogicContractTests
     public void InsertTour_StorageThrowError_ThrowException_Test()
     {
         //Arrange
-        _tourStorageContract.Setup(x => x.AddElement(It.IsAny<TourDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        Assert.That(() => _tourBusinessLogicContract.InsertTour(new TourDataModel(Guid.NewGuid().ToString(), "name","country", 10, TourType.Ski)), Throws.TypeOf<InsufficientException>());
         //Act&Assert
-        Assert.That(() => _tourBusinessLogicContract.InsertTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
-        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertFurniture_InsufficientError_ThrowException_Test()
+    {
+        //Arrange
+        Assert.That(() => _tourBusinessLogicContract.InsertTour(new TourDataModel(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)),Throws.TypeOf<InsufficientException>());
+        //Act&Assert
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
     }
 
     [Test]
@@ -304,7 +313,7 @@ internal class TourBusinessLogicContractTests
             .Callback((TourDataModel x) =>
             {
                 flag = x.Id == record.Id && x.TourName == record.TourName && x.TourCountry == record.TourCountry
-                    && x.Price == record.Price && x.Type == record.Type;
+                    && x.Price == record.Price && x.TourType == record.TourType;
             });
         //Act
         _tourBusinessLogicContract.UpdateTour(record);
@@ -329,7 +338,7 @@ internal class TourBusinessLogicContractTests
         //Arrange
         _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new ElementExistsException("Data", "Data"));
         //Act&Assert
-        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf<ElementExistsException>());
+        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf <ElementExistsException>());
         _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
     }
 

MagicCarpetProject/MagicCarpetTests/DataModelTests/AgencyDataModelTests.cs

@@ -0,0 +1,79 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class AgencyDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var model = CreateDataModel(null, TourType.Beach, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+        model = CreateDataModel(string.Empty, TourType.Beach, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var model = CreateDataModel("id", TourType.Beach, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TypeIsNoneTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), TourType.None, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), TourType.None, 0, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+
+        model = CreateDataModel(Guid.NewGuid().ToString(), TourType.None, -1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+    [Test]
+    public void ToursIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), TourType.Beach, 1, null);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+
+        sale = CreateDataModel(Guid.NewGuid().ToString(), TourType.Beach, 1, []);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var id = Guid.NewGuid().ToString();
+        var type = TourType.Beach;
+        var count = 1;
+        var tours = CreateSubDataModel();
+        var model = CreateDataModel(id, type, count, tours);
+        Assert.DoesNotThrow(() => model.Validate());
+        Assert.Multiple(() =>
+        {
+            Assert.That(model.Id, Is.EqualTo(id));
+            Assert.That(model.Type, Is.EqualTo(type));
+            Assert.That(model.Count, Is.EqualTo(count));
+            Assert.That(model.Tours, Is.EqualTo(tours));
+        });
+    }
+
+    private static AgencyDataModel CreateDataModel(string? id, TourType type, int count, List<TourAgencyDataModel> tours)
+        => new AgencyDataModel(id, type, count, tours);
+    private static List<TourAgencyDataModel> CreateSubDataModel()
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+}

MagicCarpetProject/MagicCarpetTests/DataModelTests/SuppliesDataModelTests.cs

@@ -0,0 +1,80 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class SuppliesDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var model = CreateDataModel(null, TourType.Beach, DateTime.Now, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+        model = CreateDataModel(string.Empty, TourType.Beach, DateTime.Now, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var model = CreateDataModel("id", TourType.Beach, DateTime.Now, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TypeIsNoneTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), TourType.None, DateTime.Now, 1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), TourType.None, DateTime.Now, 0, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+
+        model = CreateDataModel(Guid.NewGuid().ToString(), TourType.None, DateTime.Now, -1, CreateSubDataModel());
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+    [Test]
+    public void ToursIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1, null);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), TourType.Beach, DateTime.Now, 1, []);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var id = Guid.NewGuid().ToString();
+        var type = TourType.Beach;
+        var date = DateTime.Now;
+        var count = 1;
+        var tours = CreateSubDataModel();
+        var model = CreateDataModel(id, type, date, count, tours);
+        Assert.DoesNotThrow(() => model.Validate());
+        Assert.Multiple(() =>
+        {
+            Assert.That(model.Id, Is.EqualTo(id));
+            Assert.That(model.Type, Is.EqualTo(type));
+            Assert.That(model.ProductuionDate, Is.EqualTo(date));
+            Assert.That(model.Count, Is.EqualTo(count));
+            Assert.That(model.Tours, Is.EqualTo(tours));
+        });
+    }
+
+    private static SuppliesDataModel CreateDataModel(string? id, TourType type, DateTime date, int count, List<TourSuppliesDataModel> tours)
+            => new(id, type, date, count, tours);
+    private static List<TourSuppliesDataModel> CreateSubDataModel()
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+}

MagicCarpetProject/MagicCarpetTests/DataModelTests/TourAgencyDataModelTests.cs

@@ -0,0 +1,75 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class TourAgencyDataModelTests
+{
+    [Test]
+    public void AgencyIdIsNullOrEmptyTest()
+    {
+        var model = CreateDataModel(null, Guid.NewGuid().ToString(), 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+
+        model = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AgencyIdIsNotGuidTest()
+    {
+        var model = CreateDataModel("id", Guid.NewGuid().ToString(), 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TourIdIsNullOrEmptyTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), null, 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+
+        model = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TourIdIsNotGuidTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), "id", 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+        model = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var agencyId = Guid.NewGuid().ToString();
+        var tourId = Guid.NewGuid().ToString();
+        var count = 1;
+        var model = CreateDataModel(agencyId, tourId, count);
+        Assert.That(() => model.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(model.AgencyId, Is.EqualTo(agencyId));
+            Assert.That(model.TourId, Is.EqualTo(tourId));
+            Assert.That(model.Count, Is.EqualTo(count));
+        });
+    }
+
+    private static TourAgencyDataModel CreateDataModel(string? agencyId, string? tourId, int count)
+        => new(agencyId, tourId, count);
+}

MagicCarpetProject/MagicCarpetTests/DataModelTests/TourDataModelTests.cs

@@ -3,6 +3,7 @@ using MagicCarpetContracts.Enums;
 using MagicCarpetContracts.Exceptions;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -14,17 +15,17 @@ internal class TourDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var cocktail = CreateDataModel(null, "name", "country", 10.5, TourType.Beach);
+        var tour = CreateDataModel(null, "name", "country", 10.5, TourType.Beach);
-        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
-        cocktail = CreateDataModel(string.Empty, "name", "country", 10.5, TourType.Beach);
+        tour = CreateDataModel(string.Empty, "name", "country", 10.5, TourType.Beach);
-        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var cocktail = CreateDataModel("id", "name", "country", 10.5, TourType.Beach);
+        var tour = CreateDataModel("id", "name", "country", 10.5, TourType.Beach);
-        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
@@ -46,17 +47,17 @@ internal class TourDataModelTests
     [Test]
     public void PriceIsLessOrZeroTest()
     {
-        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, null, 0, TourType.Beach);
+        var tour = CreateDataModel(Guid.NewGuid().ToString(), null, null, 0, TourType.Beach);
-        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
-        cocktail = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, string.Empty, -10.5, TourType.Beach);
+        tour = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, string.Empty, -10.5, TourType.Beach);
-        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void TourTypeIsNoneTest()
     {
-        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, null, 0, TourType.Beach);
+        var tour = CreateDataModel(Guid.NewGuid().ToString(), null, null, 0, TourType.Beach);
-        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
@@ -67,6 +68,8 @@ internal class TourDataModelTests
         var tourCountry = "country";
         var price = 10.5;
         var tourType = TourType.Ski;
+        var supplies = CreateSuppliesDataModel();
+        var agency = CreateAgencyDataModel();
         var tour = CreateDataModel(tourId, tourName, tourCountry, price, tourType);
         Assert.That(() => tour.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
@@ -75,10 +78,15 @@ internal class TourDataModelTests
             Assert.That(tour.TourName, Is.EqualTo(tourName));
             Assert.That(tour.TourCountry, Is.EqualTo(tourCountry));
             Assert.That(tour.Price, Is.EqualTo(price));
-            Assert.That(tour.Type, Is.EqualTo(tourType));
+            Assert.That(tour.TourType, Is.EqualTo(tourType));
         });
     }
 
-    private static TourDataModel CreateDataModel(string? id, string? tourName, string? countryName,double price, TourType tourType) =>
+    private static TourDataModel CreateDataModel(string? id, string? tourName, string? countryName, double price, TourType tourType) =>
         new(id, tourName, countryName,price, tourType);
+    private static List<TourSuppliesDataModel> CreateSuppliesDataModel()
+                => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+
+    private static List<TourAgencyDataModel> CreateAgencyDataModel()
+                => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
 }

MagicCarpetProject/MagicCarpetTests/DataModelTests/TourSuppliesDataModelTests.cs

@@ -0,0 +1,75 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class TourSuppliesDataModelTests
+{
+    [Test]
+    public void SuppliesIdIsNullOrEmptyTest()
+    {
+        var model = CreateDataModel(null, Guid.NewGuid().ToString(), 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+
+        model = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SuppliesIdIsNotGuidTest()
+    {
+        var model = CreateDataModel("id", Guid.NewGuid().ToString(), 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TourIdIsNullOrEmptyTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), null, 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+
+        model = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TourIdIsNotGuidTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), "id", 1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var model = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+        model = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -1);
+        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var suppliesId = Guid.NewGuid().ToString();
+        var tourId = Guid.NewGuid().ToString();
+        var count = 1;
+        var model = CreateDataModel(suppliesId, tourId, count);
+        Assert.That(() => model.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(model.SuppliesId, Is.EqualTo(suppliesId));
+            Assert.That(model.TourId, Is.EqualTo(tourId));
+            Assert.That(model.Count, Is.EqualTo(count));
+        });
+    }
+
+    private static TourSuppliesDataModel CreateDataModel(string? suppliesId, string? tourId, int count)
+        => new(suppliesId, tourId, count);
+}

MagicCarpetProject/MagicCarpetTests/MagicCarpetTests.csproj

@@ -11,6 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="NUnit" Version="3.14.0" />

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/AgencyStorageContractTests.cs

@@ -0,0 +1,215 @@
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetDatabase.Implementations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MagicCarpetDatabase.Models;
+using MagicCarpetContracts.Enums;
+using Microsoft.EntityFrameworkCore;
+using MagicCarpetContracts.DataModels;
+
+namespace MagicCarpetTests.StoragesContractsTests;
+
+[TestFixture]
+internal class AgencyStorageContractTests : BaseStorageContractTest
+{
+    private AgencyStorageContract _agencyStorageContract;
+    private Tour _tour;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _agencyStorageContract = new AgencyStorageContract(MagicCarpetDbContext);
+        _tour = InsertTourToDatabaseAndReturn(Guid.NewGuid().ToString(), "name", TourType.Sightseeing);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        MagicCarpetDbContext.Database.ExecuteSqlRaw("TRUNCATE \"Agencies\" CASCADE;");
+        MagicCarpetDbContext.Database.ExecuteSqlRaw("TRUNCATE \"Tours\" CASCADE;");
+    }
+
+    [Test]
+    public void Try_GetList_WhenHaveRecords_Test()
+    {
+        var agency = InsertAgencyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Sightseeing, 5);
+        InsertAgencyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Sightseeing, 5);
+        InsertAgencyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Sightseeing, 5);
+        var list = _agencyStorageContract.GetList();
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(3));
+        AssertElement(list.First(), agency);
+    }
+
+    [Test]
+    public void Try_GetList_WhenNoRecords_Test()
+    {
+        var list = _agencyStorageContract.GetList();
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.Empty);
+    }
+
+    [Test]
+    public void Try_GetElementById_WhenHaveRecord_Test()
+    {
+        var agency = InsertAgencyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Sightseeing, 5);
+        var result = _agencyStorageContract.GetElementById(agency.Id);
+        AssertElement(result, agency);
+    }
+
+    [Test]
+    public void Try_GetElementById_WhenNoRecord_Test()
+    {
+        Assert.That(() => _agencyStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+    }
+
+    [Test]
+    public void Try_AddElement_WhenValidData_Test()
+    {
+        var agency = CreateModel(Guid.NewGuid().ToString(), TourType.Sightseeing, 5, [_tour.Id]);
+        _agencyStorageContract.AddElement(agency);
+        var result = GetAgencyFromDatabaseById(agency.Id);
+        AssertElement(result, agency);
+    }
+
+    [Test]
+    public void Try_AddElement_WhenHaveRecordWithSameId_Test()
+    {
+        var agency = CreateModel(Guid.NewGuid().ToString(), TourType.Sightseeing, 5, [_tour.Id]);
+        InsertAgencyToDatabaseAndReturn(agency.Id, TourType.Sightseeing, 5, [(_tour.Id, 3)]);
+        Assert.That(() => _agencyStorageContract.AddElement(agency), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void Try_AddElement_WhenNoHaveTour_Test()
+    {
+        var agency = CreateModel(Guid.NewGuid().ToString(), TourType.Sightseeing, 0, [_tour.Id]);
+        InsertAgencyToDatabaseAndReturn(agency.Id, TourType.Sightseeing, 5, [(_tour.Id, 3)]);
+        Assert.That(() => _agencyStorageContract.AddElement(agency), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void Try_UpdElement_WhenValidData_Test()
+    {
+        var agency = CreateModel(Guid.NewGuid().ToString(), TourType.Sightseeing, 5, [_tour.Id]);
+        InsertAgencyToDatabaseAndReturn(agency.Id, TourType.Ski, 10, null);
+        _agencyStorageContract.UpdElement(agency);
+        var result = GetAgencyFromDatabaseById(agency.Id);
+        AssertElement(result, agency);
+    }
+
+    [Test]
+    public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+    {
+        var agency = CreateModel(Guid.NewGuid().ToString(), TourType.Sightseeing, 5, [_tour.Id]);
+        Assert.That(() => _agencyStorageContract.UpdElement(agency), Throws.TypeOf<ElementNotFoundException>());
+    }
+
+    [Test]
+    public void Try_DelElement_WhenRecordExists_Test()
+    {
+        var agency = InsertAgencyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Sightseeing, 5);
+        _agencyStorageContract.DelElement(agency.Id);
+        var result = GetAgencyFromDatabaseById(agency.Id);
+        Assert.That(result, Is.Null);
+    }
+
+    [Test]
+    public void Try_DelElement_WhenRecordDoesNotExist_ThrowsElementNotFoundException()
+    {
+        Assert.That(() => _agencyStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+    }
+
+    private Tour InsertTourToDatabaseAndReturn(string id, string name, TourType type)
+    {
+        var tour = new Tour { Id = id, TourName = name, TourType = type };
+        MagicCarpetDbContext.Tours.Add(tour);
+        MagicCarpetDbContext.SaveChanges();
+        return tour;
+    }
+
+    private Agency InsertAgencyToDatabaseAndReturn(string id, TourType type, int count, List<(string, int)>? tours = null)
+    {
+        var agency = new Agency { Id = id, Type = type, Count = count, Tours = [] };
+        if (tours is not null)
+        {
+            foreach (var elem in tours)
+            {
+                agency.Tours.Add(new TourAgency { AgencyId = agency.Id, TourId = elem.Item1, Count = elem.Item2 });
+            }
+        }
+        MagicCarpetDbContext.Agencies.Add(agency);
+        MagicCarpetDbContext.SaveChanges();
+        return agency;
+    }
+
+    private static void AssertElement(AgencyDataModel? actual, Agency expected)
+    {
+        Assert.That(actual, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            Assert.That(actual.Id, Is.EqualTo(expected.Id));
+            Assert.That(actual.Type, Is.EqualTo(expected.Type));
+            Assert.That(actual.Count, Is.EqualTo(expected.Count));
+        });
+        if (expected.Tours is not null)
+        {
+            Assert.That(actual.Tours, Is.Not.Null);
+            Assert.That(actual.Tours, Has.Count.EqualTo(expected.Tours.Count));
+            for (int i = 0; i < actual.Tours.Count; ++i)
+            {
+                Assert.Multiple(() =>
+                {
+                    Assert.That(actual.Tours[i].TourId, Is.EqualTo(expected.Tours[i].TourId));
+                    Assert.That(actual.Tours[i].Count, Is.EqualTo(expected.Tours[i].Count));
+                });
+            }
+        }
+        else
+        {
+            Assert.That(actual.Tours, Is.Null);
+        }
+    }
+
+    private static void AssertElement(Agency? actual, AgencyDataModel expected)
+    {
+        Assert.That(actual, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            Assert.That(actual.Id, Is.EqualTo(expected.Id));
+            Assert.That(actual.Type, Is.EqualTo(expected.Type));
+            Assert.That(actual.Count, Is.EqualTo(expected.Count));
+        });
+        if (expected.Tours is not null)
+        {
+            Assert.That(actual.Tours, Is.Not.Null);
+            Assert.That(actual.Tours, Has.Count.EqualTo(expected.Tours.Count));
+            for (int i = 0; i < actual.Tours.Count; ++i)
+            {
+                Assert.Multiple(() =>
+                {
+                    Assert.That(actual.Tours[i].TourId, Is.EqualTo(expected.Tours[i].TourId));
+                    Assert.That(actual.Tours[i].Count, Is.EqualTo(expected.Tours[i].Count));
+                });
+            }
+        }
+        else
+        {
+            Assert.That(actual.Tours, Is.Null);
+        }
+    }
+
+    private static AgencyDataModel CreateModel(string id, TourType type, int count, List<string> toursIds)
+    {
+        var tours = toursIds.Select(x => new TourAgencyDataModel(id, x, 1)).ToList();
+        return new(id, type, count, tours);
+    }
+
+    private Agency? GetAgencyFromDatabaseById(string id)
+    {
+        return MagicCarpetDbContext.Agencies.FirstOrDefault(x => x.Id == id);
+    }
+}

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/BaseStorageContractTest.cs

@@ -6,7 +6,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace MagicCarpetTests.StoragesContracts;
+namespace MagicCarpetTests.StoragesContractsTests;
 
 internal abstract class BaseStorageContractTest
 {

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/ClientStorageContractTests.cs

@@ -1,7 +1,6 @@
 using MagicCarpetContracts.DataModels;
 using MagicCarpetContracts.Enums;
 using MagicCarpetContracts.Exceptions;
-using MagicCarpetContracts.StoragesContracts;
 using MagicCarpetDatabase.Implementations;
 using MagicCarpetDatabase.Models;
 using Microsoft.EntityFrameworkCore;
@@ -11,7 +10,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace MagicCarpetTests.StoragesContracts;
+namespace MagicCarpetTests.StoragesContractsTests;
 
 [TestFixture]
 internal class ClientStorageContractTests : BaseStorageContractTest

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/EmployeeStorageContractTests.cs

@@ -9,7 +9,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace MagicCarpetTests.StoragesContracts;
+namespace MagicCarpetTests.StoragesContractsTests;
 
 [TestFixture]
 class EmployeeStorageContractTests : BaseStorageContractTest

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/SalaryStorageContractTests.cs

@@ -8,7 +8,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace MagicCarpetTests.StoragesContracts;
+namespace MagicCarpetTests.StoragesContractsTests;
 
 [TestFixture]
 internal class SalaryStorageContractTests : BaseStorageContractTest

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/SaleStorageContractTests.cs

@@ -11,7 +11,7 @@ using System.Text;
 using System.Threading.Tasks;
 using static NUnit.Framework.Internal.OSPlatform;
 
-namespace MagicCarpetTests.StoragesContracts;
+namespace MagicCarpetTests.StoragesContractsTests;
 
 [TestFixture]
 internal class SaleStorageContractTests : BaseStorageContractTest
@@ -211,7 +211,7 @@ internal class SaleStorageContractTests : BaseStorageContractTest
 
     private Tour InsertTourToDatabaseAndReturn(string tourName = "test", TourType tourType = TourType.Sightseeing, double price = 1)
     {
-        var tour = new Tour() { Id = Guid.NewGuid().ToString(), TourName = tourName, Type = tourType, Price = price };
+        var tour = new Tour() { Id = Guid.NewGuid().ToString(), TourName = tourName, TourType = tourType, Price = price };
         MagicCarpetDbContext.Tours.Add(tour);
         MagicCarpetDbContext.SaveChanges();
         return tour;

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/SuppliesStorageContractTests.cs

@@ -0,0 +1,191 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetDatabase.Implementations;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.StoragesContractsTests;
+
+[TestFixture]
+internal class SuppliesStorageContractTests : BaseStorageContractTest
+{
+    private SuppliesStorageContract _suppliesStorageContract;
+    private Tour _tour;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _suppliesStorageContract = new SuppliesStorageContract(MagicCarpetDbContext);
+        _tour = InsertTourToDatabaseAndReturn();
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        MagicCarpetDbContext.Database.ExecuteSqlRaw("TRUNCATE \"Supplieses\" CASCADE;");
+        MagicCarpetDbContext.Database.ExecuteSqlRaw("TRUNCATE \"Tours\" CASCADE;");
+    }
+
+    [Test]
+    public void Try_GetList_WhenHaveRecords_Test()
+    {
+        var supply = InsertSupplyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Ski, 5);
+        InsertSupplyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Ski, 5);
+        InsertSupplyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Ski, 5);
+        var list = _suppliesStorageContract.GetList();
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(3));
+        AssertElement(list.First(), supply);
+    }
+
+    [Test]
+    public void Try_GetList_WhenNoRecords_Test()
+    {
+        var list = _suppliesStorageContract.GetList();
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.Empty);
+    }
+
+    [Test]
+    public void Try_GetElementById_WhenHaveRecord_Test()
+    {
+        var supply = InsertSupplyToDatabaseAndReturn(Guid.NewGuid().ToString(), TourType.Ski, 5);
+        AssertElement(_suppliesStorageContract.GetElementById(supply.Id), supply);
+    }
+
+    [Test]
+    public void Try_GetElementById_WhenNoRecord_Test()
+    {
+        Assert.That(() => _suppliesStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+    }
+
+    [Test]
+    public void Try_AddElement_Test()
+    {
+        var supply = CreateModel(Guid.NewGuid().ToString(), TourType.Ski, 5, [_tour.Id]);
+        _suppliesStorageContract.AddElement(supply);
+        AssertElement(GetSupplyFromDatabaseById(supply.Id), supply);
+    }
+
+    [Test]
+    public void Try_AddElement_WhenHaveRecordWithSameId_Test()
+    {
+        var supply = CreateModel(Guid.NewGuid().ToString(), TourType.Ski, 5, [_tour.Id]);
+        InsertSupplyToDatabaseAndReturn(supply.Id, TourType.Ski, 5, [(_tour.Id, 3)]);
+        Assert.That(() => _suppliesStorageContract.AddElement(supply), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void Try_UpdElement_Test()
+    {
+        var supply = CreateModel(Guid.NewGuid().ToString(), TourType.Ski, 5, [_tour.Id]);
+        InsertSupplyToDatabaseAndReturn(supply.Id, TourType.Ski, 5, null);
+        _suppliesStorageContract.UpdElement(supply);
+        AssertElement(GetSupplyFromDatabaseById(supply.Id), supply);
+    }
+
+    [Test]
+    public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+    {
+        Assert.That(() => _suppliesStorageContract.UpdElement(CreateModel(Guid.NewGuid().ToString(), TourType.Ski, 5, [_tour.Id])), Throws.TypeOf<ElementNotFoundException>());
+    }
+
+    private Tour InsertTourToDatabaseAndReturn()
+    {
+        var tour = new Tour { Id = Guid.NewGuid().ToString(), TourName = "Test Tour", TourType = TourType.Ski };
+        MagicCarpetDbContext.Tours.Add(tour);
+        MagicCarpetDbContext.SaveChanges();
+        return tour;
+    }
+
+    private Supplies InsertSupplyToDatabaseAndReturn(string id, TourType type, int count, List<(string, int)>? tours = null)
+    {
+        var supply = new Supplies { Id = id, Type = type, ProductuionDate = DateTime.UtcNow, Count = count, Tours = [] };
+        if (tours is not null)
+        {
+            foreach (var elem in tours)
+            {
+                supply.Tours.Add(new TourSupplies { SuppliesId = supply.Id, TourId = elem.Item1, Count = elem.Item2 });
+            }
+        }
+        MagicCarpetDbContext.Supplieses.Add(supply);
+        MagicCarpetDbContext.SaveChanges();
+        return supply;
+    }
+
+    private static void AssertElement(SuppliesDataModel? actual, Supplies expected)
+    {
+        Assert.That(actual, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            Assert.That(actual.Id, Is.EqualTo(expected.Id));
+            Assert.That(actual.Type, Is.EqualTo(expected.Type));
+            Assert.That(actual.ProductuionDate, Is.EqualTo(expected.ProductuionDate));
+            Assert.That(actual.Count, Is.EqualTo(expected.Count));
+        });
+        if (expected.Tours is not null)
+        {
+            Assert.That(actual.Tours, Is.Not.Null);
+            Assert.That(actual.Tours, Has.Count.EqualTo(expected.Tours.Count));
+            for (int i = 0; i < actual.Tours.Count; ++i)
+            {
+                Assert.Multiple(() =>
+                {
+                    Assert.That(actual.Tours[i].TourId, Is.EqualTo(expected.Tours[i].TourId));
+                    Assert.That(actual.Tours[i].Count, Is.EqualTo(expected.Tours[i].Count));
+                });
+            }
+        }
+        else
+        {
+            Assert.That(actual.Tours, Is.Null);
+        }
+    }
+
+    private static void AssertElement(Supplies? actual, SuppliesDataModel expected)
+    {
+        Assert.That(actual, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            Assert.That(actual.Id, Is.EqualTo(expected.Id));
+            Assert.That(actual.Type, Is.EqualTo(expected.Type));
+            Assert.That(actual.ProductuionDate, Is.EqualTo(expected.ProductuionDate));
+            Assert.That(actual.Count, Is.EqualTo(expected.Count));
+        });
+        if (expected.Tours is not null)
+        {
+            Assert.That(actual.Tours, Is.Not.Null);
+            Assert.That(actual.Tours, Has.Count.EqualTo(expected.Tours.Count));
+            for (int i = 0; i < actual.Tours.Count; ++i)
+            {
+                Assert.Multiple(() =>
+                {
+                    Assert.That(actual.Tours[i].TourId, Is.EqualTo(expected.Tours[i].TourId));
+                    Assert.That(actual.Tours[i].Count, Is.EqualTo(expected.Tours[i].Count));
+                });
+            }
+        }
+        else
+        {
+            Assert.That(actual.Tours, Is.Null);
+        }
+    }
+
+    private static SuppliesDataModel CreateModel(string id, TourType type, int count, List<string> toursIds)
+    {
+        var tours = toursIds.Select(x => new TourSuppliesDataModel(id, x, 1)).ToList();
+        return new(id, type, DateTime.UtcNow, count, tours);
+    }
+
+
+    private Supplies? GetSupplyFromDatabaseById(string id)
+    {
+        return MagicCarpetDbContext.Supplieses.FirstOrDefault(x => x.Id == id);
+    }
+}

MagicCarpetProject/MagicCarpetTests/StoragesContractsTests/TourStorageContractTests.cs

@@ -12,7 +12,7 @@ using System.Text;
 using System.Threading.Tasks;
 using static NUnit.Framework.Internal.OSPlatform;
 
-namespace MagicCarpetTests.StoragesContracts;
+namespace MagicCarpetTests.StoragesContractsTests;
 
 [TestFixture]
 internal class TourStorageContractTests : BaseStorageContractTest
@@ -168,7 +168,7 @@ internal class TourStorageContractTests : BaseStorageContractTest
 
     private Tour InsertTourToDatabaseAndReturn(string id, string tourName = "test", string tourCountry = "country", TourType tourType = TourType.Beach, double price = 1)
     {
-        var tour = new Tour() { Id = id, TourName = tourName, TourCountry = tourCountry, Type = tourType, Price = price };
+        var tour = new Tour() { Id = id, TourName = tourName, TourCountry = tourCountry, TourType = tourType, Price = price };
         MagicCarpetDbContext.Tours.Add(tour);
         MagicCarpetDbContext.SaveChanges();
         return tour;
@@ -190,7 +190,7 @@ internal class TourStorageContractTests : BaseStorageContractTest
             Assert.That(actual.Id, Is.EqualTo(expected.Id));
             Assert.That(actual.TourName, Is.EqualTo(expected.TourName));
             Assert.That(actual.TourCountry, Is.EqualTo(expected.TourCountry));
-            Assert.That(actual.Type, Is.EqualTo(expected.Type));
+            Assert.That(actual.TourType, Is.EqualTo(expected.TourType));
             Assert.That(actual.Price, Is.EqualTo(expected.Price));
         });
     }
@@ -208,7 +208,7 @@ internal class TourStorageContractTests : BaseStorageContractTest
             Assert.That(actual.Id, Is.EqualTo(expected.Id));
             Assert.That(actual.TourName, Is.EqualTo(expected.TourName));
             Assert.That(actual.TourCountry, Is.EqualTo(expected.TourCountry));
-            Assert.That(actual.Type, Is.EqualTo(expected.Type));
+            Assert.That(actual.TourType, Is.EqualTo(expected.TourType));
             Assert.That(actual.Price, Is.EqualTo(expected.Price));
         });
     }