PIbd-24_Aliulov.S.R_NorthBridge/NorthBridgeProject/NorthBridgeTests/DataModelsTests/ManufacturerDataModelTests.cs

using NorthBridgeContracts.DataModels;
using NorthBridgeContracts.Exceptions;

namespace NorthBridgeTests.DataModelsTests;

[TestFixture]
internal class ManufacturerDataModelTests
{
    [Test]
    public void IdIsNullOrEmptyTest()
    {
        var manufacturer = CreateDataModel(null, "ManufacturerName");
        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());

        manufacturer = CreateDataModel(string.Empty, "ManufacturerName");
        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void IdIsNotGuidTest()
    {
        var manufacturer = CreateDataModel("not-a-guid", "ManufacturerName");
        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void ManufacturerNameIsNullOrEmptyTest()
    {
        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null);
        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());

        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty);
        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsAreCorrectTest()
    {
        var manufacturerId = Guid.NewGuid().ToString();
        var manufacturerName = "ManufacturerName";
        var prevManufacturerName = "PrevManufacturerName";
        var prevPrevManufacturerName = "PrevPrevManufacturerName";

        var manufacturer = CreateDataModel(manufacturerId, manufacturerName, prevManufacturerName, prevPrevManufacturerName);

        Assert.That(() => manufacturer.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(manufacturer.Id, Is.EqualTo(manufacturerId));
            Assert.That(manufacturer.ManufacturerName, Is.EqualTo(manufacturerName));
            Assert.That(manufacturer.PrevManufacturerName, Is.EqualTo(prevManufacturerName));
            Assert.That(manufacturer.PrevPrevManufacturerName, Is.EqualTo(prevPrevManufacturerName));
        });
    }

    private static ManufacturerDataModel CreateDataModel(string? id, string? manufacturerName, string? prevManufacturerName = null, string? prevPrevManufacturerName = null) =>
        new(id, manufacturerName, prevManufacturerName, prevPrevManufacturerName);
}