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