Commit 00ef9ff2 authored by Robert Bradshaw's avatar Robert Bradshaw

Add tests for CyCache.

parent 175870ed
import glob
import gzip
import os
import tempfile
import Cython.Build.Dependencies
import Cython.Utils
#from Cython.Build.Dependencies import cythonize
from Cython.TestUtils import CythonTest
class TestInline(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()
open(a_pyx, 'w').write(content2)
self.fresh_cythonize(a_pyx, cache=self.cache_dir)
a_contents2 = open(a_c).read()
self.assertNotEqual(a_contents1, a_contents2)
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)
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')
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')
...@@ -20,9 +20,14 @@ from contextlib import contextmanager ...@@ -20,9 +20,14 @@ from contextlib import contextmanager
modification_time = os.path.getmtime modification_time = os.path.getmtime
_function_caches = []
def clear_function_caches():
for cache in _function_caches:
cache.clear()
def cached_function(f): def cached_function(f):
cache = {} cache = {}
_function_caches.append(cache)
uncomputed = object() uncomputed = object()
def wrapper(*args): def wrapper(*args):
res = cache.get(args, uncomputed) res = cache.get(args, uncomputed)
......
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