finskaya060525/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();
        }

        private void SetCodeInputText(string code)
        {
            _mainWindow.CodeInputBox.Text = code;
        }
        
        [Test]
        public void BtnVhodOnClick_ShouldCloseWindow_WhenCodeInputTextIsZero()
        {
            ListPr.codeUser = 0;
            SetCodeInputText("0");
            _mainWindow.BtnVhod_OnClick(null, null);
            
            Assert.IsTrue(ProductEdit.IsOpen);
        }

        [Test]
        public void BtnVhodOnClick_ShouldCloseWindow_WhenCodeInputTextIsOne()
        {
            ListPr.codeUser = 0;
            SetCodeInputText("1");
            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.IsTrue(ProductEdit.IsOpen);
        }
        
        [Test]
        public void BtnVhodOnClick_ShouldCloseWindow_WhenCodeInputTextIsTwo()
        {
            ListPr.codeUser = 0;
            SetCodeInputText("2");
            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.IsFalse(ProductEdit.IsOpen);
        }
        
        [Test]
        public void BtnVhodOnClick_ShouldCloseWindow_WhenCodeInputTextIsEmpty()
        {
            ListPr.codeUser = 0;
            SetCodeInputText("");
            _mainWindow.BtnVhod_OnClick(null, null);
            
            Assert.IsFalse(ProductEdit.IsOpen);
        }
        
        [Test]
        public void BtnVhodOnClick_ShouldCloseWindow_WhenCodeInputTextIsString()
        {
            ListPr.codeUser = 0;
            SetCodeInputText("ff");
            _mainWindow.BtnVhod_OnClick(null, null);

            Assert.IsFalse(ProductEdit.IsOpen);
        }
    }
}