def testExceptionIfOverlaysAndDepthOrSegmentation(self):
overlay = engine.TextOverlay()
with self.assertRaisesWithLiteralMatch(
ValueError, engine._OVERLAYS_NOT_SUPPORTED_FOR_DEPTH_OR_SEGMENTATION):
self._physics.render(depth=True, overlays=[overlay])
with self.assertRaisesWithLiteralMatch(
ValueError, engine._OVERLAYS_NOT_SUPPORTED_FOR_DEPTH_OR_SEGMENTATION):
self._physics.render(segmentation=True, overlays=[overlay])
def testTextOverlay(self):
height, width = 480, 640
overlay = engine.TextOverlay(title='Title', body='Body', style='big',
position='bottom right')
no_overlay = self._physics.render(height, width, camera_id=0)
with_overlay = self._physics.render(height, width, camera_id=0,
overlays=[overlay])
self.assertFalse(np.all(no_overlay == with_overlay),
msg='Images are identical with and without text overlay.')
