test: add unit tests for controls and rendering helpers

Add comprehensive test coverage for 20+ Skia controls including ActivityIndicator, Border, CheckBox, CollectionView, DatePicker, Editor, Grid, Image, ImageButton, Label, NavigationPage, Page, Picker, ProgressBar, RadioButton, SearchBar, Stepper, Switch, and TimePicker. Include tests for TextRenderingHelper utility methods covering color conversion, font style mapping, and font family resolution.
2026-03-06 22:43:25 -05:00
parent 077abc2feb
commit c5221ba580
22 changed files with 2717 additions and 2 deletions
--- a/tests/Views/SkiaSearchBarTests.cs
+++ b/tests/Views/SkiaSearchBarTests.cs
@@ -0,0 +1,136 @@
+// 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.Graphics;
+using Microsoft.Maui.Platform;
+using SkiaSharp;
+using Xunit;
+
+namespace Microsoft.Maui.Controls.Linux.Tests.Views;
+
+public class SkiaSearchBarTests
+{
+    [Fact]
+    public void Constructor_SetsDefaultValues()
+    {
+        // Arrange & Act
+        var searchBar = new SkiaSearchBar();
+
+        // Assert
+        searchBar.Text.Should().BeEmpty();
+        searchBar.Placeholder.Should().Be("Search...");
+        searchBar.IsFocusable.Should().BeTrue();
+    }
+
+    [Fact]
+    public void Text_WhenSet_UpdatesProperty()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+
+        // Act
+        searchBar.Text = "Hello World";
+
+        // Assert
+        searchBar.Text.Should().Be("Hello World");
+    }
+
+    [Fact]
+    public void Placeholder_WhenSet_UpdatesProperty()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+
+        // Act
+        searchBar.Placeholder = "Type to search...";
+
+        // Assert
+        searchBar.Placeholder.Should().Be("Type to search...");
+    }
+
+    [Fact]
+    public void TextColor_WhenSet_UpdatesProperty()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+        var color = Microsoft.Maui.Graphics.Colors.Red;
+
+        // Act
+        searchBar.TextColor = color;
+
+        // Assert
+        searchBar.TextColor.Should().Be(color);
+    }
+
+    [Fact]
+    public void PlaceholderColor_WhenSet_UpdatesProperty()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+        var color = Microsoft.Maui.Graphics.Colors.Gray;
+
+        // Act
+        searchBar.PlaceholderColor = color;
+
+        // Assert
+        searchBar.PlaceholderColor.Should().Be(color);
+    }
+
+    [Fact]
+    public void SearchButtonPressed_EventCanBeSubscribed()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+        var eventSubscribed = false;
+
+        // Act
+        searchBar.SearchButtonPressed += (s, e) => eventSubscribed = true;
+
+        // Assert - Just verify we can subscribe without error
+        eventSubscribed.Should().BeFalse();
+    }
+
+    [Fact]
+    public void TextChanged_EventCanBeSubscribed()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+        var eventSubscribed = false;
+
+        // Act
+        searchBar.TextChanged += (s, e) => eventSubscribed = true;
+
+        // Assert - Just verify we can subscribe without error
+        eventSubscribed.Should().BeFalse();
+    }
+
+    [Fact]
+    public void Draw_DoesNotThrow()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+        searchBar.Bounds = new Rect(0, 0, 250, 40);
+
+        using var surface = SKSurface.Create(new SKImageInfo(300, 100));
+        var canvas = surface.Canvas;
+
+        // Act & Assert
+        var exception = Record.Exception(() => searchBar.Draw(canvas));
+        exception.Should().BeNull();
+    }
+
+    [Fact]
+    public void Measure_ReturnsPositiveSize()
+    {
+        // Arrange
+        var searchBar = new SkiaSearchBar();
+
+        // Act
+        var size = searchBar.Measure(new Size(1000, 1000));
+
+        // Assert
+        size.Width.Should().BeGreaterThan(0);
+        size.Height.Should().BeGreaterThan(0);
+    }
+}