def test_version4(self): """ ICC profile is version 4 """ leadoff = struct.pack('>IIBB', 416, 0, 4, 0) self.buffer = leadoff + self.buffer[10:] icc_profile = _ICCProfile(self.buffer) self.assertEqual(icc_profile.header['Version'], '4.0.0') self.assertTrue('Profile Id' in icc_profile.header.keys())
def test_bad_rendering_intent(self): """ The rendering intent is not in the range 0-4. It should be classified as 'unknown' """ intent = struct.pack('>I', 10) self.buffer = self.buffer[:64] + intent + self.buffer[68:] icc_profile = _ICCProfile(self.buffer) self.assertEqual(icc_profile.header['Rendering Intent'], 'unknown')
def test_gray(self): """ The ICC profile colorspace is gray. The datetime information is null. """ icc_profile = _ICCProfile(self.buffer) self.assertEqual(icc_profile.header['Version'], '2.1.0') self.assertEqual(icc_profile.header['Color Space'], 'gray') self.assertIsNone(icc_profile.header['Datetime']) # Only True for version4 self.assertFalse('Profile Id' in icc_profile.header.keys())
def test_icc_profile(self): """basic colr box with ICC profile""" colr = ColourSpecificationBox(icc_profile=self.icc_profile) self.assertEqual(colr.method, glymur.core.ENUMERATED_COLORSPACE) self.assertEqual(colr.precedence, 0) self.assertEqual(colr.approximation, 0) icc_profile = _ICCProfile(colr.icc_profile) self.assertEqual(icc_profile.header['Version'], '2.1.0') self.assertEqual(icc_profile.header['Color Space'], 'gray') self.assertIsNone(icc_profile.header['Datetime']) # Only True for version4 self.assertFalse('Profile Id' in icc_profile.header.keys())