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Reorgamize tests

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This commit is contained in:
Andrew Cassidy 2021-03-09 01:25:20 -08:00
parent beb3d76a4b
commit d182cbae65
4 changed files with 20 additions and 30 deletions
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1
.gitignore vendored
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@ -3,6 +3,7 @@ env/
dist/
build/
*.egg-info
*.pyc
# IDEs
**/.idea

1
.gitmodules vendored
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@ -5,3 +5,4 @@
[submodule "tests/images"]
path = tests/images
url = https://git.pileof.rocks/drewcassidy/python-rgbcx-images.git
commit = 0ade526dd1070e6f5b43e0bd58b26828abff86b7

2
tests/images

@ -1 +1 @@
Subproject commit dc0dfa948994cc05501b544e8f3c396dad69897e
Subproject commit 0ade526dd1070e6f5b43e0bd58b26828abff86b7

46
tests/test_rgbcx.py → tests/test_BC1.py
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@ -1,22 +1,7 @@
import unittest
import os
import rgbcx
import s3tc
from PIL import Image
dir_path = os.path.dirname(os.path.realpath(__file__))
image_path = dir_path + "/images"
# A block that should always encode greyscale, where every row of pixels is identical, and the left side is lighter than the right side
greyscale = Image.open(image_path + "/blocks/greyscale.png").tobytes("raw", "RGBX")
# A block that should always encode 3-color when available.
# from left to right: red, yellow, yellow, green
three_color = Image.open(image_path + "/blocks/3color.png").tobytes("raw", "RGBX")
# A block that should always encode 3-color with black when available
# from left to right: black, red, yellow, green
three_color_black = Image.open(image_path + "/blocks/3color black.png").tobytes("raw", "RGBX")
import rgbcx
from images import Blocks
class TestBC1Encoder(unittest.TestCase):
@ -27,7 +12,7 @@ class TestBC1Encoder(unittest.TestCase):
def test_block_size(self):
"""Ensure encoded block size is 8 bytes."""
out = self.bc1_encoder.encode_image(greyscale, 4, 4)
out = self.bc1_encoder.encode_image(Blocks.greyscale, 4, 4)
self.assertEqual(self.bc1_encoder.block_width, 4, 'incorrect reported block width')
self.assertEqual(self.bc1_encoder.block_height, 4, 'incorrect reported block height')
@ -36,13 +21,13 @@ class TestBC1Encoder(unittest.TestCase):
def test_block_4color(self):
"""Ensure encoding the greyscale test block results in a 4 color block."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(greyscale, 4, 4))
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.greyscale, 4, 4))
self.assertFalse(out.is_3color(), "returned 3 color block for greyscale test block")
def test_block_greyscale_selectors(self):
"""Ensure encoding the greyscale test block results in the correct selectors."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(greyscale, 4, 4))
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.greyscale, 4, 4))
first_row = out.selectors[0]
expected_row = [0, 2, 3, 1]
@ -51,8 +36,8 @@ class TestBC1Encoder(unittest.TestCase):
def test_block_3color(self):
"""Ensure encoder doesn't output a 3 color block."""
out1 = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color, 4, 4))
out2 = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color_black, 4, 4))
out1 = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color, 4, 4))
out2 = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color_black, 4, 4))
self.assertFalse(out1.is_3color(), "returned 3 color block with use_3color disabled")
self.assertFalse(out2.is_3color(), "returned 3 color block with use_3color disabled")
@ -66,26 +51,26 @@ class TestBC1Encoder3Color(unittest.TestCase):
def test_block_4color(self):
"""Ensure encoding the greyscale test block results in a 4 color block."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(greyscale, 4, 4))
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.greyscale, 4, 4))
self.assertFalse(out.is_3color(), "returned 3 color block for greyscale test block")
def test_block_3color(self):
"""Ensure encoding the 3 color test block results in a 3 color block."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color, 4, 4))
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color, 4, 4))
self.assertTrue(out.is_3color(), "returned 4 color block with use_3color enabled")
def test_block_3color_black(self):
"""Ensure encoder doesn't output a 3 color block with black pixels."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color_black, 4, 4))
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color_black, 4, 4))
self.assertFalse(out.is_3color() and any(3 in row for row in out.selectors),
"returned 3 color block with black pixels with use_3color_black disabled")
def test_block_selectors(self):
"""Ensure encoding the 3 color test block results in the correct selectors."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color, 4, 4))
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color, 4, 4))
first_row = out.selectors[0]
expected_row = [1, 2, 2, 0]
@ -100,18 +85,21 @@ class TestBC1Encoder3ColorBlack(unittest.TestCase):
self.bc1_encoder = rgbcx.BC1Encoder(rgbcx.InterpolatorType.Ideal, 5, True, True)
def test_block_3color(self):
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color, 4, 4))
"""Ensure encoding the 3 color test block results in a 3 color block."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color, 4, 4))
self.assertTrue(out.is_3color(), "returned 4 color block with use_3color enabled")
def test_block_3color_black(self):
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color_black, 4, 4))
"""Ensure encoder outputs a 3 color block with black pixels."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color_black, 4, 4))
self.assertTrue(out.is_3color(), "returned 4 color block with use_3color enabled")
self.assertTrue(any(3 in row for row in out.selectors), "returned block without black pixels with use_3color_black enabled")
def test_block_selectors(self):
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(three_color_black, 4, 4))
"""Ensure encoding the 3 color with black test block results in the correct selectors."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color_black, 4, 4))
first_row = out.selectors[0]
expected_row = [3, 1, 2, 0]