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https://github.com/drewcassidy/quicktex.git
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62 lines
2.4 KiB
Python
62 lines
2.4 KiB
Python
import unittest
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import nose
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import quicktex
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import images
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import tempfile
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from PIL import Image
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class TestRawTexture(unittest.TestCase):
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boilerplate = Image.open(images.image_path + '/Boilerplate.png')
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bp_bytes = boilerplate.tobytes('raw', 'RGBX')
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width = boilerplate.width
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height = boilerplate.height
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def setUp(self):
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self.texture = quicktex.RawTexture(self.width, self.height)
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def test_size(self):
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"""Test byte size and image dimensions"""
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self.assertEqual(self.texture.size, self.width * self.height * 4, "incorrect texture byte size")
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self.assertEqual(self.texture.width, self.width, "incorrect texture width")
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self.assertEqual(self.texture.height, self.height, "incorrect texture height")
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self.assertEqual(self.texture.dimensions, (self.width, self.height), "incorrect texture dimension tuple")
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def test_pixels(self):
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"""Test getting and setting pixel values"""
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color1 = (69, 13, 12, 0) # totally random color
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color2 = (19, 142, 93, 44)
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self.texture[0, 0] = color1
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self.texture[-1, -1] = color2
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data = self.texture.tobytes()
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self.assertEqual(self.texture[0, 0], color1)
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self.assertEqual(self.texture[-1, -1], color2)
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self.assertEqual(tuple(data[0:4]), color1)
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self.assertEqual(tuple(data[-4:]), color2)
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with self.assertRaises(IndexError):
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thing = self.texture[self.width, self.height]
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with self.assertRaises(IndexError):
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thing = self.texture[-1 - self.width, -1 - self.height]
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def test_buffer(self):
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"""Test the Buffer protocol implementation for RawTexture"""
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with tempfile.TemporaryFile('r+b') as fp:
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fp.write(self.bp_bytes)
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fp.seek(0)
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bytes_read = fp.readinto(self.texture)
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self.assertEqual(bytes_read, self.texture.size, 'buffer over/underrun')
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self.assertEqual(self.bp_bytes, self.texture.tobytes(), 'Incorrect bytes after writing to buffer')
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self.assertEqual(self.bp_bytes, bytes(self.texture), "Incorrect bytes after reading from buffer")
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def test_frombytes(self):
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"""Test the frombytes factory function"""
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bytetex = quicktex.RawTexture.frombytes(self.bp_bytes, *self.boilerplate.size)
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self.assertEqual(self.bp_bytes, bytetex.tobytes(), 'Incorrect bytes after writing to buffer')
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if __name__ == '__main__':
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nose.main()
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