finskayMagazin/TestTovarV2/MainWindow.cs

using TovarV2;
using Avalonia;
using Avalonia.Headless;

namespace TestTovarV2
{
    [TestFixture]
    public class MainWindowTests
    {
        private MainWindow _mainWindow;

        [OneTimeSetUp]
        public void OneTimeSetup()
        {
            AppBuilder.Configure<App>()
                .UseHeadless(new AvaloniaHeadlessPlatformOptions())
                .SetupWithoutStarting();
        }

        [SetUp]
        public void Setup()
        {
            _mainWindow = new MainWindow();

            ProductEdit.ResetState();
        }

        [Test]
        public void BtnVhod_ShouldOpenProductEditWindow_WhenCodeInputTextIsZero()
        {
            _mainWindow.CodeInputBox.Text = "0";

            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.That(0 == ListPr.codeUser);
            Assert.IsTrue(ProductEdit.IsOpen);
        }

        [Test]
        public void BtnVhod_ShouldOpenProductEditWindow_WhenCodeInputTextIsOne()
        {
            _mainWindow.CodeInputBox.Text = "1";

            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.That(1 == ListPr.codeUser);
            Assert.IsTrue(ProductEdit.IsOpen);
        }

        [Test]
        public void BtnVhod_ShouldNotChangeCode_WhenCodeInputIsInvalidWithDigits()
        {
            _mainWindow.CodeInputBox.Text = "331";
            ListPr.codeUser = -1;

            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.That(0 != ListPr.codeUser);
            Assert.That(1 != ListPr.codeUser);
            Assert.IsFalse(MainWindow.IsOpen);
        }

        [Test]
        public void BtnVhod_ShouldNotChangeCode_WhenCodeInputIsInvalidWithLetters()
        {
            _mainWindow.CodeInputBox.Text = "vefve";
            ListPr.codeUser = -1;

            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.That(0 != ListPr.codeUser);
            Assert.That(1 != ListPr.codeUser);
            Assert.IsFalse(MainWindow.IsOpen);
        }

        [Test]
        public void BtnVhod_ShouldNotChangeCode_WhenCodeInputIsBlank()
        {
            _mainWindow.CodeInputBox.Text = "";
            ListPr.codeUser = -1;

            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.That(0 != ListPr.codeUser);
            Assert.That(1 != ListPr.codeUser);
            Assert.IsFalse(MainWindow.IsOpen);
        }

    }
}