def test_lowering_saturation_increases_appropriate_rgb_channels_uniformally(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
result = Game.hsva_to_colour(60, 0.25, 1.0, 255)
self.assertAlmostEqual(1.0, result[0], 2)
self.assertAlmostEqual(1.0, result[1], 2)
self.assertAlmostEqual(0.75, result[2], 2)
self.assertEqual(1.0, result[3])
def test_lowering_val_lowers_appropriate_rgb_channels_uniformally(self, engines):
engines['gfx'].rgb_to_colour = self._stub_colour
result = Game.hsva_to_colour(60, 1.0, 0.25, 255)
self.assertAlmostEqual(0.25, result[0], 2)
self.assertAlmostEqual(0.25, result[1], 2)
self.assertAlmostEqual(0.0, result[2], 2)
self.assertEqual(1.0, result[3])
def test_returns_correct_alpha_value(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
self.assertAlmostEqual(0.25, Game.hsva_to_colour(0, 1.0, 1.0, 64)[3], 2)
def test_returns_magenta_for_hue_300(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
self.assertEqual((1.0, 0.0, 1.0, 1.0), Game.hsva_to_colour(300, 1.0, 1.0, 255))
def test_returns_cyan_for_hue_180(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
self.assertEqual((0.0, 1.0, 1.0, 1.0), Game.hsva_to_colour(180, 1.0, 1.0, 255))
def test_returns_yellow_for_hue_60(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
self.assertEqual((1.0, 1.0, 0.0, 1.0), Game.hsva_to_colour(60, 1.0, 1.0, 255))
def test_returns_black_for_no_val(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
self.assertEqual((0.0, 0.0, 0.0, 1.0), Game.hsva_to_colour(0, 1.0, 0.0, 255))
def test_returns_white_for_no_sat_and_full_val(self, engines):
engines["gfx"].rgb_to_colour = self._stub_colour
self.assertEqual((1.0, 1.0, 1.0, 1.0), Game.hsva_to_colour(0, 0.0, 1.0, 255))
def test_returns_blue_for_hue_240(self, engines):
engines['gfx'].rgb_to_colour = self._stub_colour
self.assertEqual((0.0, 0.0, 1.0, 1.0), Game.hsva_to_colour(240, 1.0, 1.0, 255))
