@Test
public void testCenterCropHandlesBitmapsWithNullConfigs() {
Bitmap toTransform = Bitmap.createBitmap(100, 100, Bitmap.Config.RGB_565);
Shadows.shadowOf(toTransform).setConfig(null);
Bitmap transformed = TransformationUtils.centerCrop(bitmapPool, toTransform, 50, 50);
assertEquals(Bitmap.Config.ARGB_8888, transformed.getConfig());
}
@Test
public void testCenterCropReturnsGivenBitmapIfGivenBitmapExactlyMatchesGivenDimensions() {
Bitmap toCrop = Bitmap.createBitmap(200, 300, Bitmap.Config.ARGB_8888);
Bitmap transformed =
TransformationUtils.centerCrop(bitmapPool, toCrop, toCrop.getWidth(), toCrop.getHeight());
// Robolectric incorrectly implements equals() for Bitmaps, we want the original object not
// just an equivalent.
assertTrue(toCrop == transformed);
}
@Test
public void testCenterCropSetsOutBitmapToNotHaveAlphaIfInBitmapDoesNotHaveAlpha() {
Bitmap toTransform = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
toTransform.setHasAlpha(false);
Bitmap result =
TransformationUtils.centerCrop(
bitmapPool, toTransform, toTransform.getWidth() / 2, toTransform.getHeight() / 2);
assertFalse(result.hasAlpha());
}
@Test
public void testCenterCropSetsOutBitmapToHaveAlphaIfInBitmapHasAlphaAndOutBitmapIsReused() {
Bitmap toTransform = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
Bitmap toReuse = Bitmap.createBitmap(50, 50, Bitmap.Config.ARGB_8888);
reset(bitmapPool);
when(bitmapPool.get(eq(50), eq(50), eq(Bitmap.Config.ARGB_8888))).thenReturn(toReuse);
toReuse.setHasAlpha(false);
toTransform.setHasAlpha(true);
Bitmap result =
TransformationUtils.centerCrop(
bitmapPool, toTransform, toReuse.getWidth(), toReuse.getHeight());
assertEquals(toReuse, result);
assertTrue(result.hasAlpha());
}
