120 lines
4.4 KiB
Python
120 lines
4.4 KiB
Python
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import difflib
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import glob
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import gzip
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import os
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import sys
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import tempfile
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import unittest
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import Cython.Build.Dependencies
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import Cython.Utils
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from Cython.TestUtils import CythonTest
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class TestCyCache(CythonTest):
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def setUp(self):
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CythonTest.setUp(self)
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self.temp_dir = tempfile.mkdtemp(
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prefix='cycache-test',
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dir='TEST_TMP' if os.path.isdir('TEST_TMP') else None)
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self.src_dir = tempfile.mkdtemp(prefix='src', dir=self.temp_dir)
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self.cache_dir = tempfile.mkdtemp(prefix='cache', dir=self.temp_dir)
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def cache_files(self, file_glob):
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return glob.glob(os.path.join(self.cache_dir, file_glob))
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def fresh_cythonize(self, *args, **kwargs):
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Cython.Utils.clear_function_caches()
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Cython.Build.Dependencies._dep_tree = None # discard method caches
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Cython.Build.Dependencies.cythonize(*args, **kwargs)
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def test_cycache_switch(self):
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content1 = 'value = 1\n'
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content2 = 'value = 2\n'
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a_pyx = os.path.join(self.src_dir, 'a.pyx')
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a_c = a_pyx[:-4] + '.c'
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with open(a_pyx, 'w') as f:
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f.write(content1)
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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self.assertEqual(1, len(self.cache_files('a.c*')))
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with open(a_c) as f:
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a_contents1 = f.read()
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os.unlink(a_c)
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with open(a_pyx, 'w') as f:
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f.write(content2)
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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with open(a_c) as f:
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a_contents2 = f.read()
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os.unlink(a_c)
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self.assertNotEqual(a_contents1, a_contents2, 'C file not changed!')
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self.assertEqual(2, len(self.cache_files('a.c*')))
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with open(a_pyx, 'w') as f:
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f.write(content1)
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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self.assertEqual(2, len(self.cache_files('a.c*')))
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with open(a_c) as f:
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a_contents = f.read()
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self.assertEqual(
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a_contents, a_contents1,
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msg='\n'.join(list(difflib.unified_diff(
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a_contents.split('\n'), a_contents1.split('\n')))[:10]))
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def test_cycache_uses_cache(self):
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a_pyx = os.path.join(self.src_dir, 'a.pyx')
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a_c = a_pyx[:-4] + '.c'
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with open(a_pyx, 'w') as f:
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f.write('pass')
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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a_cache = os.path.join(self.cache_dir, os.listdir(self.cache_dir)[0])
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with gzip.GzipFile(a_cache, 'wb') as gzipfile:
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gzipfile.write('fake stuff'.encode('ascii'))
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os.unlink(a_c)
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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with open(a_c) as f:
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a_contents = f.read()
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self.assertEqual(a_contents, 'fake stuff',
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'Unexpected contents: %s...' % a_contents[:100])
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def test_multi_file_output(self):
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a_pyx = os.path.join(self.src_dir, 'a.pyx')
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a_c = a_pyx[:-4] + '.c'
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a_h = a_pyx[:-4] + '.h'
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a_api_h = a_pyx[:-4] + '_api.h'
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with open(a_pyx, 'w') as f:
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f.write('cdef public api int foo(int x): return x\n')
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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expected = [a_c, a_h, a_api_h]
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for output in expected:
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self.assertTrue(os.path.exists(output), output)
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os.unlink(output)
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self.fresh_cythonize(a_pyx, cache=self.cache_dir)
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for output in expected:
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self.assertTrue(os.path.exists(output), output)
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def test_options_invalidation(self):
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hash_pyx = os.path.join(self.src_dir, 'options.pyx')
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hash_c = hash_pyx[:-len('.pyx')] + '.c'
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with open(hash_pyx, 'w') as f:
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f.write('pass')
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self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=False)
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self.assertEqual(1, len(self.cache_files('options.c*')))
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os.unlink(hash_c)
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self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=True)
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self.assertEqual(2, len(self.cache_files('options.c*')))
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os.unlink(hash_c)
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self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=False, show_version=False)
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self.assertEqual(2, len(self.cache_files('options.c*')))
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os.unlink(hash_c)
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self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=False, show_version=True)
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self.assertEqual(2, len(self.cache_files('options.c*')))
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