PIbd-22_Khasyanov_A.N._BitterlyAndExclamationMark/BitterlyAndExclamationMarkProject/BitterlyAndExclamationMarkTests/DataModelsTests/OrderDishDataModelTests.cs

using BitterlyAndExclamationMarkContracts.DataModels;
using BitterlyAndExclamationMarkContracts.Exceptions;

namespace BitterlyAndExclamationMarkTests.DataModelsTests;

[TestFixture]
internal class OrderDishDataModelTests
{
    [Test]
    public void OrderIdIsNullOrEmptyTest()
    {
        var orderDish = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
        orderDish = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void OrderIdIsNotGuidTest()
    {
        var orderDish = CreateDataModel("orderId", Guid.NewGuid().ToString(), 10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void DishIdIsNullOrEmptyTest()
    {
        var orderDish = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
        orderDish = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void DishIdIsNotGuidTest()
    {
        var orderDish = CreateDataModel(Guid.NewGuid().ToString(), "dishId", 10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void CountIsLessOrZeroTest()
    {
        var orderDish = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
        orderDish = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
        Assert.That(() => orderDish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var orderId = Guid.NewGuid().ToString();
        var dishId = Guid.NewGuid().ToString();
        var count = 10;
        var orderDish = CreateDataModel(orderId, dishId, count);
        Assert.That(() => orderDish.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(orderDish.OrderId, Is.EqualTo(orderId));
            Assert.That(orderDish.DishId, Is.EqualTo(dishId));
            Assert.That(orderDish.Count, Is.EqualTo(count));
        });
    }
    private static OrderDishDataModel CreateDataModel(string? orderId, string? dishId, int count) =>
        new(orderId, dishId, count);
}