mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-11-14 05:36:48 +03:00
4de5477b61
With the introduction and use of pytest, it is simple and easy to
execute specific tests in isolation through documented command line
arguments. Either by specifying the module path or through the `-k
EXPRESSION` argument. There is no longer any need to provide the
boilerplate:
if __name__ == '__main__':
unittest.main()
To every test file. It is simply noise.
The pattern remains in test files that aren't named with `test_*` as
those files are not discovered and executed by pytest by default.
182 lines
6.2 KiB
Python
182 lines
6.2 KiB
Python
from __future__ import division, print_function
|
|
|
|
import sys
|
|
|
|
from .helper import unittest, PillowTestCase
|
|
from PIL import Image
|
|
|
|
|
|
is_pypy = hasattr(sys, 'pypy_version_info')
|
|
|
|
|
|
class TestCoreStats(PillowTestCase):
|
|
def test_get_stats(self):
|
|
# Create at least one image
|
|
Image.new('RGB', (10, 10))
|
|
|
|
stats = Image.core.get_stats()
|
|
self.assertIn('new_count', stats)
|
|
self.assertIn('reused_blocks', stats)
|
|
self.assertIn('freed_blocks', stats)
|
|
self.assertIn('allocated_blocks', stats)
|
|
self.assertIn('reallocated_blocks', stats)
|
|
self.assertIn('blocks_cached', stats)
|
|
|
|
def test_reset_stats(self):
|
|
Image.core.reset_stats()
|
|
|
|
stats = Image.core.get_stats()
|
|
self.assertEqual(stats['new_count'], 0)
|
|
self.assertEqual(stats['reused_blocks'], 0)
|
|
self.assertEqual(stats['freed_blocks'], 0)
|
|
self.assertEqual(stats['allocated_blocks'], 0)
|
|
self.assertEqual(stats['reallocated_blocks'], 0)
|
|
self.assertEqual(stats['blocks_cached'], 0)
|
|
|
|
|
|
class TestCoreMemory(PillowTestCase):
|
|
def tearDown(self):
|
|
# Restore default values
|
|
Image.core.set_alignment(1)
|
|
Image.core.set_block_size(1024*1024)
|
|
Image.core.set_blocks_max(0)
|
|
Image.core.clear_cache()
|
|
|
|
def test_get_alignment(self):
|
|
alignment = Image.core.get_alignment()
|
|
|
|
self.assertGreater(alignment, 0)
|
|
|
|
def test_set_alignment(self):
|
|
for i in [1, 2, 4, 8, 16, 32]:
|
|
Image.core.set_alignment(i)
|
|
alignment = Image.core.get_alignment()
|
|
self.assertEqual(alignment, i)
|
|
|
|
# Try to construct new image
|
|
Image.new('RGB', (10, 10))
|
|
|
|
self.assertRaises(ValueError, Image.core.set_alignment, 0)
|
|
self.assertRaises(ValueError, Image.core.set_alignment, -1)
|
|
self.assertRaises(ValueError, Image.core.set_alignment, 3)
|
|
|
|
def test_get_block_size(self):
|
|
block_size = Image.core.get_block_size()
|
|
|
|
self.assertGreaterEqual(block_size, 4096)
|
|
|
|
def test_set_block_size(self):
|
|
for i in [4096, 2*4096, 3*4096]:
|
|
Image.core.set_block_size(i)
|
|
block_size = Image.core.get_block_size()
|
|
self.assertEqual(block_size, i)
|
|
|
|
# Try to construct new image
|
|
Image.new('RGB', (10, 10))
|
|
|
|
self.assertRaises(ValueError, Image.core.set_block_size, 0)
|
|
self.assertRaises(ValueError, Image.core.set_block_size, -1)
|
|
self.assertRaises(ValueError, Image.core.set_block_size, 4000)
|
|
|
|
def test_set_block_size_stats(self):
|
|
Image.core.reset_stats()
|
|
Image.core.set_blocks_max(0)
|
|
Image.core.set_block_size(4096)
|
|
Image.new('RGB', (256, 256))
|
|
|
|
stats = Image.core.get_stats()
|
|
self.assertGreaterEqual(stats['new_count'], 1)
|
|
self.assertGreaterEqual(stats['allocated_blocks'], 64)
|
|
if not is_pypy:
|
|
self.assertGreaterEqual(stats['freed_blocks'], 64)
|
|
|
|
def test_get_blocks_max(self):
|
|
blocks_max = Image.core.get_blocks_max()
|
|
|
|
self.assertGreaterEqual(blocks_max, 0)
|
|
|
|
def test_set_blocks_max(self):
|
|
for i in [0, 1, 10]:
|
|
Image.core.set_blocks_max(i)
|
|
blocks_max = Image.core.get_blocks_max()
|
|
self.assertEqual(blocks_max, i)
|
|
|
|
# Try to construct new image
|
|
Image.new('RGB', (10, 10))
|
|
|
|
self.assertRaises(ValueError, Image.core.set_blocks_max, -1)
|
|
|
|
@unittest.skipIf(is_pypy, "images are not collected")
|
|
def test_set_blocks_max_stats(self):
|
|
Image.core.reset_stats()
|
|
Image.core.set_blocks_max(128)
|
|
Image.core.set_block_size(4096)
|
|
Image.new('RGB', (256, 256))
|
|
Image.new('RGB', (256, 256))
|
|
|
|
stats = Image.core.get_stats()
|
|
self.assertGreaterEqual(stats['new_count'], 2)
|
|
self.assertGreaterEqual(stats['allocated_blocks'], 64)
|
|
self.assertGreaterEqual(stats['reused_blocks'], 64)
|
|
self.assertEqual(stats['freed_blocks'], 0)
|
|
self.assertEqual(stats['blocks_cached'], 64)
|
|
|
|
@unittest.skipIf(is_pypy, "images are not collected")
|
|
def test_clear_cache_stats(self):
|
|
Image.core.reset_stats()
|
|
Image.core.clear_cache()
|
|
Image.core.set_blocks_max(128)
|
|
Image.core.set_block_size(4096)
|
|
Image.new('RGB', (256, 256))
|
|
Image.new('RGB', (256, 256))
|
|
# Keep 16 blocks in cache
|
|
Image.core.clear_cache(16)
|
|
|
|
stats = Image.core.get_stats()
|
|
self.assertGreaterEqual(stats['new_count'], 2)
|
|
self.assertGreaterEqual(stats['allocated_blocks'], 64)
|
|
self.assertGreaterEqual(stats['reused_blocks'], 64)
|
|
self.assertGreaterEqual(stats['freed_blocks'], 48)
|
|
self.assertEqual(stats['blocks_cached'], 16)
|
|
|
|
def test_large_images(self):
|
|
Image.core.reset_stats()
|
|
Image.core.set_blocks_max(0)
|
|
Image.core.set_block_size(4096)
|
|
Image.new('RGB', (2048, 16))
|
|
Image.core.clear_cache()
|
|
|
|
stats = Image.core.get_stats()
|
|
self.assertGreaterEqual(stats['new_count'], 1)
|
|
self.assertGreaterEqual(stats['allocated_blocks'], 16)
|
|
self.assertGreaterEqual(stats['reused_blocks'], 0)
|
|
self.assertEqual(stats['blocks_cached'], 0)
|
|
if not is_pypy:
|
|
self.assertGreaterEqual(stats['freed_blocks'], 16)
|
|
|
|
|
|
class TestEnvVars(PillowTestCase):
|
|
def tearDown(self):
|
|
# Restore default values
|
|
Image.core.set_alignment(1)
|
|
Image.core.set_block_size(1024*1024)
|
|
Image.core.set_blocks_max(0)
|
|
Image.core.clear_cache()
|
|
|
|
def test_units(self):
|
|
Image._apply_env_variables({'PILLOW_BLOCKS_MAX': '2K'})
|
|
self.assertEqual(Image.core.get_blocks_max(), 2*1024)
|
|
Image._apply_env_variables({'PILLOW_BLOCK_SIZE': '2m'})
|
|
self.assertEqual(Image.core.get_block_size(), 2*1024*1024)
|
|
|
|
def test_warnings(self):
|
|
self.assert_warning(
|
|
UserWarning, Image._apply_env_variables,
|
|
{'PILLOW_ALIGNMENT': '15'})
|
|
self.assert_warning(
|
|
UserWarning, Image._apply_env_variables,
|
|
{'PILLOW_BLOCK_SIZE': '1024'})
|
|
self.assert_warning(
|
|
UserWarning, Image._apply_env_variables,
|
|
{'PILLOW_BLOCKS_MAX': 'wat'})
|