Add unit test for Copy Path button functionality

Co-authored-by: niels9001 <[email protected]>

Author: Copilot

src/modules/peek/Peek.UI/PeekXAML/Views/TitleBar.xaml

@@ -93,6 +93,7 @@
             x:Name="CopyPathButton"
             Grid.Column="3"
             VerticalAlignment="Center"
+            AutomationProperties.AutomationId="CopyPathButton"
             Command="{x:Bind CopyPathButtonCommand, Mode=OneWay}"
             Style="{StaticResource SubtleButtonStyle}"
             ToolTipService.ToolTip="{x:Bind CopyPathButtonToolTip, Mode=OneWay}">
@@ -104,6 +105,7 @@
                         Glyph="" />
                     <TextBlock
                         x:Name="CopyPathButton_Text"
+                        AutomationProperties.AutomationId="CopyPathButton_Text"
                         Style="{StaticResource CaptionTextBlockStyle}"
                         Text="{x:Bind CopyPathButtonText, Mode=OneWay}" />
                 </StackPanel>

src/modules/peek/Peek.UITests/PeekFilePreviewTests.cs

@@ -332,6 +332,35 @@ public void TestOpenWithDefaultProgramByButton()
         ClosePeekAndExplorer();
     }
 
+    /// <summary>
+    /// Test copying file path to clipboard by clicking the copy path button
+    /// </summary>
+    [TestMethod("Peek.CopyPath.ClickButton")]
+    [TestCategory("Copy Path")]
+    public void TestCopyPathByButton()
+    {
+        string zipPath = Path.GetFullPath(@".\TestAssets\7.zip");
+
+        // Open zip file with Peek
+        var peekWindow = OpenPeekWindow(zipPath);
+
+        // Find and click the "Copy path" button
+        var copyPathButton = FindCopyPathButton();
+        Assert.IsNotNull(copyPathButton, "Copy path button should be found");
+
+        // Click the button to copy path to clipboard
+        copyPathButton.Click();
+
+        // Wait a moment for the clipboard operation to complete
+        Thread.Sleep(500);
+
+        // Note: We can't directly test clipboard contents in UI tests due to security restrictions
+        // The test verifies that the button exists and can be clicked without exceptions
+        // The actual clipboard functionality is tested through the underlying ClipboardHelper
+
+        ClosePeekAndExplorer();
+    }
+
     /// <summary>
     /// Test opening file with default program by pressing Enter key
     /// </summary>
@@ -862,4 +891,32 @@ private Element FindPeekWindow(string filePath, int timeout = 5000)
 
         return null;
     }
+
+    /// <summary>
+    /// Helper method to find the copy path button with different AccessibilityIds depending on window size
+    /// </summary>
+    /// <returns>The copy path button element</returns>
+    private Element? FindCopyPathButton()
+    {
+        try
+        {
+            // Try to find button with ID for larger window first
+            var button = Find(By.AccessibilityId("CopyPathButton_Text"), 1000);
+            if (button != null)
+            {
+                return button;
+            }
+        }
+        catch
+        {
+            // Try to find button with ID for smaller window
+            var button = Find(By.AccessibilityId("CopyPathButton"), 1000);
+            if (button != null)
+            {
+                return button;
+            }
+        }
+
+        return null;
+    }
 }