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Parameterized tests using Nose

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This commit is contained in:
Andrew Cassidy 2021-03-10 01:15:04 -08:00
parent 60ed47ab10
commit 52d1185dac
4 changed files with 42 additions and 81 deletions
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1
setup.py
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@ -113,5 +113,6 @@ setup(
packages=find_packages('src'),
package_dir={'': 'src'},
install_requires=["Pillow"],
extras_require={"tests": ["nose", "parameterized"]},
zip_safe=False,
)

6
tests/run_tests.cpp
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@ -29,10 +29,10 @@ int main() {
py::scoped_interpreter guard{};
py::module_ site = py::module_::import("site");
py::module_ unittest = py::module_::import("unittest");
site.attr("addsitedir")(CUSTOM_SYS_PATH);
py::module_ tests = py::module_::import("test_rgbcx");
unittest.attr("main")("test_rgbcx");
py::module_ nose = py::module_::import("nose");
py::module_ tests = py::module_::import("test_BC1");
nose.attr("main")("test_BC1");
}

3
tests/s3tc.py
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@ -57,6 +57,9 @@ class BC1Block:
def is_3color(self):
return self.color0.to_565() <= self.color1.to_565()
def is_3color_black(self):
return self.is_3color() and any(3 in row for row in self.selectors)
class BC4Block:
size = 8

113
tests/test_BC1.py
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@ -1,14 +1,32 @@
import unittest
import nose
import parameterized
import s3tc
import rgbcx
from images import Blocks
class TestBC1Encoder(unittest.TestCase):
def get_class_name_bc1encoder(cls, num, params_dict):
# By default the generated class named includes either the "name"
# parameter (if present), or the first string value. This example shows
# multiple parameters being included in the generated class name:
return "%s%s" % (
cls.__name__,
params_dict['suffix'],
)
@parameterized.parameterized_class([
{"use_3color": False, "use_3color_black": False, "suffix": "4Color"},
{"use_3color": True, "use_3color_black": False, "suffix": "3Color"},
{"use_3color": True, "use_3color_black": True, "suffix": "3ColorBlack"},
], class_name_func=get_class_name_bc1encoder)
class TestBC1EncoderBlocks(unittest.TestCase):
"""Test BC1 encoder with a variety of inputs with 3 color blocks disabled."""
def setUp(self):
self.bc1_encoder = rgbcx.BC1Encoder(rgbcx.InterpolatorType.Ideal, 5, False, False)
self.bc1_encoder = rgbcx.BC1Encoder(rgbcx.InterpolatorType.Ideal, 5, self.use_3color, self.use_3color_black)
def test_block_size(self):
"""Ensure encoded block size is 8 bytes."""
@ -20,92 +38,31 @@ class TestBC1Encoder(unittest.TestCase):
self.assertEqual(len(out), 8, 'incorrect returned block size')
def test_block_4color(self):
"""Ensure encoding the greyscale test block results in a 4 color block."""
"""Test encoder output with 4 color greyscale testblock."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.greyscale, 4, 4))
selectors = [[0, 2, 3, 1]] * 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(Blocks.greyscale, 4, 4))
first_row = out.selectors[0]
expected_row = [0, 2, 3, 1]
self.assertTrue(all(row == first_row for row in out.selectors), "block has different selectors in each row")
self.assertTrue(all(row == expected_row for row in out.selectors), "block has incorrect selectors for greyscale test block")
self.assertFalse(out.is_3color(), "returned block color mode for greyscale test block")
self.assertEqual(selectors, out.selectors, "block has incorrect selectors for greyscale test block")
def test_block_3color(self):
"""Ensure encoder doesn't output a 3 color block."""
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")
class TestBC1Encoder3Color(unittest.TestCase):
"""Test BC1 encoder with a variety of inputs with 3 color blocks enabled."""
def setUp(self):
self.bc1_encoder = rgbcx.BC1Encoder(rgbcx.InterpolatorType.Ideal, 5, True, False)
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(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."""
"""Test encoder output with 3 color test block."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color, 4, 4))
selectors = [[1, 2, 2, 0]] * 4
self.assertTrue(out.is_3color(), "returned 4 color block with use_3color enabled")
self.assertEqual(out.is_3color(), self.use_3color, "returned incorrect block color mode for 3 color test block")
if self.use_3color: # we only care about the selectors if we are in 3 color mode
self.assertEqual(selectors, out.selectors, "block has incorrect selectors for 3 color test block")
def test_block_3color_black(self):
"""Ensure encoder doesn't output a 3 color block with black pixels."""
"""Test encoder output with 3 color test block with black pixels."""
out = s3tc.BC1Block.frombytes(self.bc1_encoder.encode_image(Blocks.three_color_black, 4, 4))
selectors = [[3, 1, 2, 0]] * 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(Blocks.three_color, 4, 4))
first_row = out.selectors[0]
expected_row = [1, 2, 2, 0]
self.assertTrue(all(row == first_row for row in out.selectors), "block has different selectors in each row")
self.assertTrue(all(row == expected_row for row in out.selectors), "block has incorrect selectors for 3 color test block")
class TestBC1Encoder3ColorBlack(unittest.TestCase):
""" Test BC1 encoder with a variety of inputs with 3 color blocks with black pixels enabled"""
def setUp(self):
self.bc1_encoder = rgbcx.BC1Encoder(rgbcx.InterpolatorType.Ideal, 5, True, True)
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(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 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):
"""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]
self.assertTrue(all(row == first_row for row in out.selectors), "block has different selectors in each row")
self.assertTrue(all(row == expected_row for row in out.selectors), "block has incorrect selectors for 3 color black test block")
self.assertEqual(out.is_3color_black(), self.use_3color_black, "returned incorrect block color mode for 3 color with black test block")
if self.use_3color_black: # we only care about the selectors if we are in 3 color black mode
self.assertEqual(selectors, out.selectors, "block has incorrect selectors for 3 color with black test block")
if __name__ == '__main__':
unittest.main()
nose.main()