def test_delete_multiple_files(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache = FileSystemCache(tmpdir, max_cache_size_bytes=6)
         cache.put("first", b"one")
         # Sleep because otherwise these operations execute too fast and
         # the access time isn't captured properly.
         time.sleep(1)
         cache.put("second", b"two")
         cache.put("third", b"three")
         self.assertEqual(cache.get("first"), None)
         self.assertEqual(cache.get("second"), None)
         self.assertEqual(cache.get("third"), b"three")
 def test_existing_cache_path(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache1 = FileSystemCache(tmpdir)
         cache1.put("foo", b"bar")
         del cache1
         cache2 = FileSystemCache(tmpdir)
         self.assertEqual(cache2.get("foo"), b"bar")
    def test_threads(self):
        file_contents1 = "1" * (65536 + 1)
        file_contents2 = "2" * (65536 + 1)

        def call_multiple_puts_and_gets(cache):
            for i in range(50):
                cache.put("foo", file_contents1.encode('utf-8').strip())
                cache.put("foo", file_contents2.encode('utf-8').strip())
                cache.get("foo")
                self.assertEqual(cache.get("foo"),
                                 file_contents2.encode('utf-8').strip())

        with tempfile.TemporaryDirectory() as tmpdir:
            cache = FileSystemCache(tmpdir)
            threads = []
            for i in range(50):
                t = threading.Thread(target=call_multiple_puts_and_gets(cache))
                t.start()
                threads.append(t)
            for t in threads:
                t.join()

            self.assertEqual(cache.get("foo"),
                             file_contents2.encode('utf-8').strip())
 def test_empty_key_get(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache = FileSystemCache(tmpdir)
         with self.assertRaisesRegex(ValueError, r"key cannot be empty"):
             cache.get("")
 def test_empty_value_put(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache = FileSystemCache(tmpdir)
         cache.put("foo", b"")
         self.assertEqual(cache.get("foo"), b"")
 def test_put_and_get_key(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache = FileSystemCache(tmpdir)
         cache.put("foo", b"bar")
         self.assertEqual(cache.get("foo"), b"bar")
 def test_get_nonexistent_key(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache = FileSystemCache(tmpdir)
         self.assertEqual(cache.get("nonExistentKey"), None)
 def test_file_bigger_than_cache(self):
     with tempfile.TemporaryDirectory() as tmpdir:
         cache = FileSystemCache(tmpdir, max_cache_size_bytes=2)
         cache.put("foo", b"bar")
         self.assertEqual(cache.get("foo"), None)