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我有一个 WPF 应用程序，我正在尝试自动化 UI 测试。我正在使用FlaUI这个。我也NUnit用作测试框架。我的应用程序使用DevExpress控件，目前我面临一个问题，即我无法Visibility of my progress bar从我的单元测试应用程序中检查。使用FlaUI我能够launch应用程序并获取Window句柄，但应用程序需要一些时间来设置visibility. UI elements由于 UI 加载需要时间并且它由进度条控制，我正在寻找一种机制，我的测试项目可以在其中检查进度条的可见性changed，然后继续执行测试用例。这是XAML来自 WPF 项目的控件

    <ProgressBar AutomationProperties.AutomationId="showProgress"
        Grid.Row="1"
        Height="4"
        Margin="0"
        BorderThickness="0"
        IsIndeterminate="True"
        IsTabStop="False"
        ToolTip="Contacting Server, Please Wait..."
        Visibility="{Binding IsServerActive, Converter={StaticResource MwBoolToVisibilityConverterReverse}}" />

    <views1:VoyageEditorControl Grid.Row="2" Grid.Column="0" />

下面是我的Nunit框架中的代码

[TestFixture(AutomationType.UIA3)]
    public class UnitTest1 : FlaUITestBase
    {


        public AutomationType AutomationType { get; }

        protected override ApplicationStartMode ApplicationStartMode => ApplicationStartMode.OncePerFixture;

        public UnitTest1(AutomationType automationType)
        {
            AutomationType = automationType;
        }

        protected override AutomationBase GetAutomation()
        {
            return UtilityMethods.GetAutomation(AutomationType);
        }

        protected override Application StartApplication()
        {
            string executableLocation = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
            string projectPath = executableLocation.Replace("BP.GIS.Synergy.ShipTracker.UITests", "BP.GIS.Synergy.ShipTracker");

            string exeLocation = Path.Combine(projectPath, "BP.GIS.Synergy.ShipTracker.exe");

            var app= Application.Launch(exeLocation);
            app.WaitWhileMainHandleIsMissing();
            return app;

        }
 #region Test cases      


        [Test]
        public void getAppHandleFirst()
        {
            //  Thread.Sleep(10000);


            var mainWindow = Application.GetMainWindow(Automation);

            var elementName = mainWindow.FindFirstDescendant(cf => cf.ByAutomationId("AvailableViews")).AsComboBox();

            Assert.That(elementName.IsEnabled, Is.True);
            Action action = () => elementName.Click();

            RetryResults retryResult = Retry.While(action, TimeSpan.FromSeconds(1));
            bool isCompletedSuccessfully = retryResult.IsCompletedSuccessfully;

        }

        [Test]
        public void checkAppLoadProgress()
        {
            var mainWindow = Application.GetMainWindow(Automation);
            var elementName = mainWindow.FindFirstDescendant(cf => cf.ByAutomationId("showProgress")).AsProgressBar();

        }

简而言之，该方法getAppHandleFirst()和其他方法应该只在进度条从屏幕上消失后才开始执行。

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