assertEquals("image/png", metaData.getMimeType());
assertEquals(canvas.getWidth(), metaData.getImageWidth());
assertEquals(canvas.getHeight(), metaData.getImageHeight());
blob = canvas.encode("image/png");
metaData = desktop.extractMetaData(blob);
assertEquals("image/png", metaData.getMimeType());
assertEquals(canvas.getWidth(), metaData.getImageWidth());
assertEquals(canvas.getHeight(), metaData.getImageHeight());
blob = canvas.encode("image/jpeg");