Initial commit: .NET MAUI Linux Platform

Complete Linux platform implementation for .NET MAUI with: - 35+ Skia-rendered controls (Button, Label, Entry, CarouselView, etc.) - Platform services (Clipboard, FilePicker, Notifications, DragDrop, etc.) - Accessibility support (AT-SPI2, High Contrast) - HiDPI and Input Method support - 216 unit tests - CI/CD workflows - Project templates - Documentation 🤖 Generated with Claude Code
2025-12-19 09:30:16 +00:00
commit d87124fef2
138 changed files with 32939 additions and 0 deletions
--- a/tests/Views/SkiaStackLayoutTests.cs
+++ b/tests/Views/SkiaStackLayoutTests.cs
@@ -0,0 +1,200 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using FluentAssertions;
+using Microsoft.Maui.Platform;
+using SkiaSharp;
+using Xunit;
+using PlatformStackOrientation = Microsoft.Maui.Platform.StackOrientation;
+
+namespace Microsoft.Maui.Controls.Linux.Tests.Views;
+
+public class SkiaStackLayoutTests
+{
+    [Fact]
+    public void Constructor_SetsDefaultValues()
+    {
+        // Arrange & Act
+        var layout = new SkiaStackLayout();
+
+        // Assert
+        layout.Orientation.Should().Be(PlatformStackOrientation.Vertical);
+        layout.Spacing.Should().Be(0);
+        layout.Children.Should().BeEmpty();
+    }
+
+    [Fact]
+    public void AddChild_AddsToChildren()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout();
+        var button = new SkiaButton { Text = "Test" };
+
+        // Act
+        layout.AddChild(button);
+
+        // Assert
+        layout.Children.Should().Contain(button);
+        button.Parent.Should().Be(layout);
+    }
+
+    [Fact]
+    public void RemoveChild_RemovesFromChildren()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout();
+        var button = new SkiaButton { Text = "Test" };
+        layout.AddChild(button);
+
+        // Act
+        layout.RemoveChild(button);
+
+        // Assert
+        layout.Children.Should().NotContain(button);
+        button.Parent.Should().BeNull();
+    }
+
+    [Fact]
+    public void Measure_Vertical_ReturnsPositiveSize()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout
+        {
+            Orientation = PlatformStackOrientation.Vertical,
+            Spacing = 10
+        };
+        layout.AddChild(new SkiaButton { Text = "1" });
+        layout.AddChild(new SkiaButton { Text = "2" });
+        layout.AddChild(new SkiaButton { Text = "3" });
+
+        // Act
+        var size = layout.Measure(new SKSize(200, 1000));
+
+        // Assert - Size should account for 3 children with spacing
+        size.Height.Should().BeGreaterThan(0);
+        size.Width.Should().BeGreaterThan(0);
+    }
+
+    [Fact]
+    public void Measure_Horizontal_ReturnsPositiveSize()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout
+        {
+            Orientation = PlatformStackOrientation.Horizontal,
+            Spacing = 10
+        };
+        layout.AddChild(new SkiaButton { Text = "1" });
+        layout.AddChild(new SkiaButton { Text = "2" });
+        layout.AddChild(new SkiaButton { Text = "3" });
+
+        // Act
+        var size = layout.Measure(new SKSize(1000, 200));
+
+        // Assert - Size should account for 3 children with spacing
+        size.Width.Should().BeGreaterThan(0);
+        size.Height.Should().BeGreaterThan(0);
+    }
+
+    [Fact]
+    public void Arrange_Vertical_PositionsChildren()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout
+        {
+            Orientation = PlatformStackOrientation.Vertical,
+            Spacing = 10
+        };
+        var button1 = new SkiaButton { Text = "1" };
+        var button2 = new SkiaButton { Text = "2" };
+        layout.AddChild(button1);
+        layout.AddChild(button2);
+
+        // Act
+        layout.Measure(new SKSize(200, 500));
+        layout.Arrange(new SKRect(0, 0, 200, 500));
+
+        // Assert - Button2 should be below Button1
+        button2.Bounds.Top.Should().BeGreaterThan(button1.Bounds.Top);
+    }
+
+    [Fact]
+    public void Arrange_Horizontal_PositionsChildren()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout
+        {
+            Orientation = PlatformStackOrientation.Horizontal,
+            Spacing = 10
+        };
+        var button1 = new SkiaButton { Text = "1" };
+        var button2 = new SkiaButton { Text = "2" };
+        layout.AddChild(button1);
+        layout.AddChild(button2);
+
+        // Act
+        layout.Measure(new SKSize(500, 200));
+        layout.Arrange(new SKRect(0, 0, 500, 200));
+
+        // Assert - Button2 should be to the right of Button1
+        button2.Bounds.Left.Should().BeGreaterThan(button1.Bounds.Left);
+    }
+
+    [Fact]
+    public void Padding_CanBeSet()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout
+        {
+            Orientation = PlatformStackOrientation.Vertical,
+            Padding = new SKRect(20, 20, 20, 20)
+        };
+        var button = new SkiaButton { Text = "Test" };
+        layout.AddChild(button);
+
+        // Act
+        layout.Measure(new SKSize(300, 300));
+        layout.Arrange(new SKRect(0, 0, 300, 300));
+
+        // Assert - Padding property is set
+        layout.Padding.Left.Should().Be(20);
+        layout.Padding.Top.Should().Be(20);
+    }
+
+    [Fact]
+    public void Draw_DrawsAllChildren()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout();
+        layout.AddChild(new SkiaButton { Text = "1" });
+        layout.AddChild(new SkiaButton { Text = "2" });
+        layout.Bounds = new SKRect(0, 0, 200, 200);
+
+        using var surface = SKSurface.Create(new SKImageInfo(300, 300));
+        var canvas = surface.Canvas;
+
+        // Act & Assert
+        var exception = Record.Exception(() => layout.Draw(canvas));
+        exception.Should().BeNull();
+    }
+
+    [Fact]
+    public void HitTest_ReturnsView()
+    {
+        // Arrange
+        var layout = new SkiaStackLayout { Orientation = PlatformStackOrientation.Vertical };
+        var button1 = new SkiaButton { Text = "1" };
+        var button2 = new SkiaButton { Text = "2" };
+        layout.AddChild(button1);
+        layout.AddChild(button2);
+
+        layout.Measure(new SKSize(200, 200));
+        layout.Arrange(new SKRect(0, 0, 200, 200));
+
+        // Act - Hit test within layout bounds
+        var hit = layout.HitTest(100, 10);
+
+        // Assert - Should return a view (either button1 or layout)
+        hit.Should().NotBeNull();
+    }
+}