use_cassette -> CassetteContextDecorator

tests/unit/test_vcr.py

@@ -0,0 +1,16 @@
+import mock
+
+from vcr import VCR
+
+
+
+def test_vcr_use_cassette():
+    filter_headers = mock.Mock()
+    test_vcr = VCR(filter_headers=filter_headers)
+    with mock.patch('vcr.config.Cassette') as mock_cassette_class:
+        @test_vcr.use_cassette('test')
+        def function():
+            pass
+        mock_cassette_class.call_count == 0
+        function()
+    assert mock_cassette_class.use.call_args[1]['filter_headers'] is filter_headers