public async Task ReleasingImageSourceReturnsDifferentBitmap()
{
var bitmapFile = CreateBitmapFile(100, 100, Colors.Red);
var imageSource = new FileImageSourceStub(bitmapFile);
var service = new FileImageSourceService();
// get an image
var result1 = await service.GetDrawableAsync(imageSource, Platform.DefaultContext);
var bitmapDrawable1 = Assert.IsType <BitmapDrawable>(result1.Value);
var bitmap1 = bitmapDrawable1.Bitmap;
// release
result1.Dispose();
// try collect it
var collected = await TryCollectFile(bitmapFile);
Assert.True(collected);
// get the image again
var result2 = await service.GetDrawableAsync(imageSource, Platform.DefaultContext);
var bitmapDrawable2 = Assert.IsType <BitmapDrawable>(result2.Value);
var bitmap2 = bitmapDrawable2.Bitmap;
// make sure it WAS collected and we got a new image
Assert.NotEqual(bitmap1, bitmap2);
result2.Dispose();
}
public async Task TheSameImageSourceReturnsTheSameBitmap()
{
var bitmapFile = CreateBitmapFile(100, 100, Colors.Red);
var imageSource = new FileImageSourceStub(bitmapFile);
var service = new FileImageSourceService();
// get an image
var result1 = await service.GetDrawableAsync(imageSource, MauiProgram.DefaultContext);
var drawable1 = result1.Value;
var bitmapDrawable1 = Assert.IsType <BitmapDrawable>(drawable1);
var bitmap1 = bitmapDrawable1.Bitmap;
// try collect it
var collected = await TryCollectFile(bitmapFile);
Assert.False(collected);
// get the image again
var result2 = await service.GetDrawableAsync(imageSource, MauiProgram.DefaultContext);
var drawable2 = result2.Value;
var bitmapDrawable2 = Assert.IsType <BitmapDrawable>(drawable2);
var bitmap2 = bitmapDrawable2.Bitmap;
// make sure it was NOT collected and we got the same image
Assert.Equal(bitmap1, bitmap2);
result1.Dispose();
result2.Dispose();
}
public async Task ThrowsForIncorrectTypes(Type type)
{
var service = new FileImageSourceService();
var imageSource = (ImageSourceStub)Activator.CreateInstance(type);
await Assert.ThrowsAsync <InvalidCastException>(() => service.GetDrawableAsync(imageSource, MauiProgram.DefaultContext));
}
public async Task GetDrawableAsyncWithResource(string filename, string colorHex)
{
var service = new FileImageSourceService();
var imageSource = new FileImageSourceStub(filename);
using var result = await service.GetDrawableAsync(imageSource, MauiProgram.DefaultContext);
var expectedColor = Color.FromArgb(colorHex);
result.Value.AssertColorAtCenter(expectedColor.ToPlatform());
}
public async Task GetDrawableAsyncWithResource(string filename, string colorHex)
{
var service = new FileImageSourceService();
var imageSource = new FileImageSourceStub(filename);
using var drawable = await service.GetDrawableAsync(imageSource, Platform.DefaultContext);
var bitmapDrawable = Assert.IsType <BitmapDrawable>(drawable.Value);
var bitmap = bitmapDrawable.Bitmap;
var expectedColor = Color.FromArgb(colorHex);
bitmap.AssertColorAtCenter(expectedColor.ToPlatform());
}
public async Task GetDrawableAsyncWithFile(string colorHex)
{
var expectedColor = Color.FromArgb(colorHex);
var service = new FileImageSourceService();
var filename = CreateBitmapFile(100, 100, expectedColor);
var imageSource = new FileImageSourceStub(filename);
using var result = await service.GetDrawableAsync(imageSource, MauiProgram.DefaultContext);
var bitmapDrawable = Assert.IsType <BitmapDrawable>(result.Value);
var bitmap = bitmapDrawable.Bitmap;
bitmap.AssertColorAtCenter(expectedColor.ToPlatform());
}