+
+if sys.version_info < (3, 0):
+ # There is no assert[Not]Regex that works in both Python 2 and 3,
+ # so we backport Python 3 style to Python 2.
+ def assertRegex(self, *args, **kwargs):
+ return self.assertRegexpMatches(*args, **kwargs)
+ def assertNotRegex(self, *args, **kwargs):
+ return self.assertNotRegexpMatches(*args, **kwargs)
+ unittest.TestCase.assertRegex = assertRegex
+ unittest.TestCase.assertNotRegex = assertNotRegex
+
+def binary_compare(a, b):
+ if len(a) != len(b):
+ return False
+ for i in range(0, len(a)):
+ if a[i] != b[i]:
+ return False
+ return True
+
+def make_block_cache(disk_cache):
+ if disk_cache:
+ disk_cache_dir = os.path.join(os.path.expanduser("~"), ".cache", "arvados", "keep")
+ shutil.rmtree(disk_cache_dir, ignore_errors=True)
+ block_cache = arvados.keep.KeepBlockCache(disk_cache=disk_cache)
+ return block_cache
+
+
+class DiskCacheBase:
+ def make_block_cache(self, disk_cache):
+ self.disk_cache_dir = tempfile.mkdtemp() if disk_cache else None
+ block_cache = arvados.keep.KeepBlockCache(disk_cache=disk_cache,
+ disk_cache_dir=self.disk_cache_dir)
+ return block_cache
+
+ def tearDown(self):
+ if self.disk_cache_dir:
+ shutil.rmtree(self.disk_cache_dir)