diff --git a/tests/unit/test_vcr.py b/tests/unit/test_vcr.py
index a4c98be..1029de6 100644
--- a/tests/unit/test_vcr.py
+++ b/tests/unit/test_vcr.py
@@ -15,9 +15,11 @@ def test_vcr_use_cassette():
         'vcr.cassette.Cassette.load',
         return_value=mock.MagicMock(inject=False)
     ) as mock_cassette_load:
+
         @test_vcr.use_cassette('test')
         def function():
             pass
+
         assert mock_cassette_load.call_count == 0
         function()
         assert mock_cassette_load.call_args[1]['record_mode'] is record_mode
@@ -38,9 +40,11 @@ def test_vcr_use_cassette():
 
 def test_vcr_before_record_request_params():
     base_path = 'http://httpbin.org/'
+
     def before_record_cb(request):
         if request.path != '/get':
             return request
+
     test_vcr = VCR(filter_headers=('cookie',), before_record_request=before_record_cb,
                    ignore_hosts=('www.test.com',), ignore_localhost=True,
                    filter_query_parameters=('foo',))
@@ -53,8 +57,12 @@ def test_vcr_before_record_request_params():
         assert cassette.filter_request(
             Request('GET', base_path + '?foo=bar', '',
                     {'cookie': 'test', 'other': 'fun'})).headers == {'other': 'fun'}
-        assert cassette.filter_request(Request('GET', base_path + '?foo=bar', '',
-                                               {'cookie': 'test', 'other': 'fun'})).headers == {'other': 'fun'}
+        assert cassette.filter_request(
+            Request(
+                'GET', base_path + '?foo=bar', '',
+                {'cookie': 'test', 'other': 'fun'}
+            )
+        ).headers == {'other': 'fun'}
 
         assert cassette.filter_request(Request('GET', 'http://www.test.com' + '?foo=bar', '',
                                                {'cookie': 'test', 'other': 'fun'})) is None
@@ -103,6 +111,7 @@ def test_custom_patchers():
 
 def test_inject_cassette():
     vcr = VCR(inject_cassette=True)
+
     @vcr.use_cassette('test', record_mode='once')
     def with_cassette_injected(cassette):
         assert cassette.record_mode == 'once'
@@ -117,9 +126,11 @@ def test_inject_cassette():
 
 def test_with_current_defaults():
     vcr = VCR(inject_cassette=True, record_mode='once')
+
     @vcr.use_cassette('test', with_current_defaults=False)
     def changing_defaults(cassette, checks):
         checks(cassette)
+
     @vcr.use_cassette('test', with_current_defaults=True)
     def current_defaults(cassette, checks):
         checks(cassette)
@@ -141,27 +152,33 @@ def test_with_current_defaults():
 def test_cassette_library_dir_with_decoration_and_no_explicit_path():
     library_dir = '/libary_dir'
     vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir)
+
     @vcr.use_cassette()
     def function_name(cassette):
         assert cassette._path == os.path.join(library_dir, 'function_name')
+
     function_name()
 
 
 def test_cassette_library_dir_with_decoration_and_explicit_path():
     library_dir = '/libary_dir'
     vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir)
+
     @vcr.use_cassette(path='custom_name')
     def function_name(cassette):
         assert cassette._path == os.path.join(library_dir, 'custom_name')
+
     function_name()
 
 
 def test_cassette_library_dir_with_decoration_and_super_explicit_path():
     library_dir = '/libary_dir'
     vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir)
+
     @vcr.use_cassette(path=os.path.join(library_dir, 'custom_name'))
     def function_name(cassette):
         assert cassette._path == os.path.join(library_dir, 'custom_name')
+
     function_name()
 
 
@@ -169,26 +186,32 @@ def test_cassette_library_dir_with_path_transformer():
     library_dir = '/libary_dir'
     vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir,
               path_transformer=lambda path: path + '.json')
+
     @vcr.use_cassette()
     def function_name(cassette):
         assert cassette._path == os.path.join(library_dir, 'function_name.json')
+
     function_name()
 
 
 def test_use_cassette_with_no_extra_invocation():
     vcr = VCR(inject_cassette=True, cassette_library_dir='/')
+
     @vcr.use_cassette
     def function_name(cassette):
         assert cassette._path == os.path.join('/', 'function_name')
+
     function_name()
 
 
 def test_path_transformer():
     vcr = VCR(inject_cassette=True, cassette_library_dir='/',
               path_transformer=lambda x: x + '_test')
+
     @vcr.use_cassette
     def function_name(cassette):
         assert cassette._path == os.path.join('/', 'function_name_test')
+
     function_name()
 
 
@@ -203,10 +226,12 @@ def test_cassette_name_generator_defaults_to_using_module_function_defined_in():
 
 def test_ensure_suffix():
     vcr = VCR(inject_cassette=True, path_transformer=VCR.ensure_suffix('.yaml'))
+
     @vcr.use_cassette
     def function_name(cassette):
         assert cassette._path == os.path.join(os.path.dirname(__file__),
                                               'function_name.yaml')
+
     function_name()
 
 
@@ -217,7 +242,7 @@ def test_additional_matchers():
     def function_defaults(cassette):
         assert set(cassette._match_on) == set([vcr.matchers['uri']])
 
-    @vcr.use_cassette(additional_matchers=('body'))
+    @vcr.use_cassette(additional_matchers=('body',))
     def function_additional(cassette):
         assert set(cassette._match_on) == set([vcr.matchers['uri'], vcr.matchers['body']])