private static void testConvertData(
AffineTransformationStep transformer,
TransformationStepInput input,
ImagePointTransformer expectedPointTransformer) {
TransformedImage transformedImage =
transformer.render(Cancellation.UNCANCELABLE_TOKEN, input, null);
assertEquals(input.getDestinationWidth(), transformedImage.getImage().getWidth());
assertEquals(input.getDestinationHeight(), transformedImage.getImage().getHeight());
ImagePointTransformer actualPointTransformer = transformedImage.getPointTransformer();
PointTransformerChecks.checkEqualPointTransformers(
expectedPointTransformer, actualPointTransformer);
}
public void testRenderNotUsingOffered(BufferedImage offered, int width, int height, int type) {
for (InterpolationType interpolation : InterpolationType.values()) {
AffineTransformationStep transformer =
new AffineTransformationStep(
BasicImageTransformations.identityTransformation(), Color.GRAY, interpolation);
TransformedImage inputImage = blankTransformedImage(Color.BLUE, width, height, type);
TransformationStepInput input = new TransformationStepInput(null, width, height, inputImage);
TransformedImage result = transformer.render(Cancellation.UNCANCELABLE_TOKEN, input, offered);
assertNotSame(offered, result.getImage());
ImageTestUtils.checkBlankImage(result.getImage(), Color.BLUE);
PointTransformerChecks.checkEqualPointTransformers(
AffineImagePointTransformer.IDENTITY, result.getPointTransformer());
}
}
@Test
public void testRenderNullInputProperties() {
for (InterpolationType interpolation : InterpolationType.values()) {
AffineTransformationStep transformer =
new AffineTransformationStep(
BasicImageTransformations.newZoomTransformation(100.0, 100.0),
Color.GRAY,
interpolation);
TransformationStepInput input =
new TransformationStepInput(null, 100, 100, TransformedImage.NULL_IMAGE);
TransformedImage result = transformer.render(Cancellation.UNCANCELABLE_TOKEN, input, null);
assertNull(result.getImage());
PointTransformerChecks.checkEqualPointTransformers(
AffineImagePointTransformer.IDENTITY, result.getPointTransformer());
}
}