[Android] Add UI tests for Material 3 CheckBox

src/Controls/tests/TestCases.Shared.Tests/Tests/FeatureMatrix/Material3CheckBoxFeatureTests.cs

@@ -0,0 +1,97 @@
+// Material3 CheckBox tests reuse the existing CheckBox Feature Matrix HostApp page.
+// The native Android checkbox tint differs (Material3 buttonTint vs Material2 accent color),
+// so these tests produce separate screenshot baselines under the Material3 category.
+#if ANDROID
+using System;
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests;
+
+public class Material3CheckBoxFeatureTests : _GalleryUITest
+{
+	const string CheckBoxControl = "CheckBoxControl";
+	const string ResetButton = "ResetButton";
+	const string IsCheckedSwitch = "IsCheckedSwitch";
+	const string BlueColorButton = "BlueColorButton";
+	const string GreenColorButton = "GreenColorButton";
+	const string DefaultColorButton = "DefaultColorButton";
+
+	public override string GalleryPageName => "CheckBox Feature Matrix";
+
+	public Material3CheckBoxFeatureTests(TestDevice device)
+		: base(device)
+	{
+	}
+
+	[Test, Order(1)]
+	[Category(UITestCategories.Material3)]
+	public void Material3CheckBox_InitialState_VerifyVisualState()
+	{
+		App.WaitForElement(CheckBoxControl);
+		VerifyScreenshot(tolerance: 0.5, retryTimeout: TimeSpan.FromSeconds(2));
+	}
+
+	[Test, Order(2)]
+	[Category(UITestCategories.Material3)]
+	public void Material3CheckBox_Click_VerifyVisualState()
+	{
+		App.WaitForElement(CheckBoxControl);
+		App.Tap(CheckBoxControl);
+		VerifyScreenshot(tolerance: 0.5, retryTimeout: TimeSpan.FromSeconds(2));
+	}
+
+	[Test]
+	[Category(UITestCategories.Material3)]
+	public void Material3CheckBox_SetColorBlue_VerifyVisualState()
+	{
+		App.WaitForElement(ResetButton);
+		App.Tap(ResetButton);
+		App.WaitForElement(BlueColorButton);
+		App.Tap(BlueColorButton);
+		App.WaitForElement(CheckBoxControl);
+		VerifyScreenshot(tolerance: 0.5, retryTimeout: TimeSpan.FromSeconds(2));
+	}
+
+	[Test]
+	[Category(UITestCategories.Material3)]
+	public void Material3CheckBox_SetColorGreen_VerifyVisualState()
+	{
+		App.WaitForElement(ResetButton);
+		App.Tap(ResetButton);
+		App.WaitForElement(GreenColorButton);
+		App.Tap(GreenColorButton);
+		App.WaitForElement(CheckBoxControl);
+		VerifyScreenshot(tolerance: 0.5, retryTimeout: TimeSpan.FromSeconds(2));
+	}
+
+	[Test]
+	[Category(UITestCategories.Material3)]
+	public void Material3CheckBox_SetColorAndUncheck_VerifyVisualState()
+	{
+		App.WaitForElement(ResetButton);
+		App.Tap(ResetButton);
+		App.WaitForElement(BlueColorButton);
+		App.Tap(BlueColorButton);
+		App.WaitForElement(IsCheckedSwitch);
+		App.Tap(IsCheckedSwitch);
+		App.WaitForElement(CheckBoxControl);
+		VerifyScreenshot(tolerance: 0.5, retryTimeout: TimeSpan.FromSeconds(2));
+	}
+
+	[Test]
+	[Category(UITestCategories.Material3)]
+	public void Material3CheckBox_ResetToDefaultColor_VerifyVisualState()
+	{
+		App.WaitForElement(ResetButton);
+		App.Tap(ResetButton);
+		App.WaitForElement(BlueColorButton);
+		App.Tap(BlueColorButton);
+		App.WaitForElement(DefaultColorButton);
+		App.Tap(DefaultColorButton);
+		App.WaitForElement(CheckBoxControl);
+		VerifyScreenshot(tolerance: 0.5, retryTimeout: TimeSpan.FromSeconds(2));
+	}
+}
+#endif