/
AppThemeTests.cs
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/
AppThemeTests.cs
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using System;
using NUnit.Framework;
namespace Xamarin.Forms.Core.UnitTests
{
public class AppThemeTests : BaseTestFixture
{
[SetUp]
public override void Setup()
{
base.Setup();
Application.Current = new MockApplication();
Device.SetFlags(new[] { ExperimentalFlags.AppThemeExperimental });
}
[Test]
public void ThemeChangeUsingSetAppThemeColor()
{
var label = new Label
{
Text = "Green on Light, Red on Dark"
};
label.SetAppThemeColor(Label.TextColorProperty, Color.Green, Color.Red);
Assert.AreEqual(Color.Green, label.TextColor);
SetAppTheme(OSAppTheme.Dark);
Assert.AreEqual(Color.Red, label.TextColor);
}
[Test]
public void ThemeChangeUsingSetAppTheme()
{
var label = new Label
{
Text = "Green on Light, Red on Dark"
};
label.SetOnAppTheme(Label.TextColorProperty, Color.Green, Color.Red);
Assert.AreEqual(Color.Green, label.TextColor);
SetAppTheme(OSAppTheme.Dark);
Assert.AreEqual(Color.Red, label.TextColor);
}
[Test]
public void ThemeChangeUsingSetBinding()
{
var label = new Label
{
Text = "Green on Light, Red on Dark"
};
label.SetBinding(Label.TextColorProperty, new AppThemeBinding { Light = Color.Green, Dark = Color.Red });
Assert.AreEqual(Color.Green, label.TextColor);
SetAppTheme(OSAppTheme.Dark);
Assert.AreEqual(Color.Red, label.TextColor);
}
void SetAppTheme(OSAppTheme theme)
{
((MockPlatformServices)Device.PlatformServices).RequestedTheme = theme;
Application.Current.TriggerThemeChanged(new AppThemeChangedEventArgs(theme));
}
}
}