Fix functional tests compatibility with pytest

Provide a default value for test parameters provided by decorators
in order to prevent pytest from recognizing them as fixtures.  This
is the smaller change needed to run the complete test suite via pytest.

Fixes gabrielfalcao#449

tests/functional/test_bypass.py

@@ -88,7 +88,7 @@ def stop_tcp_server(context):
 
 @httpretty.activate
 @that_with_context(start_http_server, stop_http_server)
-def test_httpretty_bypasses_when_disabled(context):
+def test_httpretty_bypasses_when_disabled(context=None):
     "httpretty should bypass all requests by disabling it"
 
     httpretty.register_uri(
@@ -122,7 +122,7 @@ def test_httpretty_bypasses_when_disabled(context):
 
 @httpretty.activate(verbose=True)
 @that_with_context(start_http_server, stop_http_server)
-def test_httpretty_bypasses_a_unregistered_request(context):
+def test_httpretty_bypasses_a_unregistered_request(context=None):
     "httpretty should bypass a unregistered request by disabling it"
 
     httpretty.register_uri(
@@ -145,7 +145,7 @@ def test_httpretty_bypasses_a_unregistered_request(context):
 
 @httpretty.activate(verbose=True)
 @that_with_context(start_tcp_server, stop_tcp_server)
-def test_using_httpretty_with_other_tcp_protocols(context):
+def test_using_httpretty_with_other_tcp_protocols(context=None):
     "httpretty should work even when testing code that also use other TCP-based protocols"
 
     httpretty.register_uri(
@@ -163,7 +163,7 @@ def test_using_httpretty_with_other_tcp_protocols(context):
 
 @httpretty.activate(allow_net_connect=False)
 @that_with_context(start_http_server, stop_http_server)
-def test_disallow_net_connect_1(context, verbose=True):
+def test_disallow_net_connect_1(context=None, verbose=True):
     """
     When allow_net_connect = False, a request that otherwise
     would have worked results in UnmockedError.

tests/functional/test_debug.py

@@ -39,7 +39,7 @@ def create_socket(context):
 @skip('not currently supported')
 @httprettified
 @scenario(create_socket)
-def test_httpretty_debugs_socket_send(context):
+def test_httpretty_debugs_socket_send(context=None):
     "HTTPretty should forward_and_trace socket.send"
 
     expect(context.sock.send).when.called_with(b'data').to.throw(
@@ -50,7 +50,7 @@ def test_httpretty_debugs_socket_send(context):
 @skip('not currently supported')
 @httprettified
 @scenario(create_socket)
-def test_httpretty_debugs_socket_sendto(context):
+def test_httpretty_debugs_socket_sendto(context=None):
     "HTTPretty should forward_and_trace socket.sendto"
 
     expect(context.sock.sendto).when.called.to.throw(
@@ -61,7 +61,7 @@ def test_httpretty_debugs_socket_sendto(context):
 @skip('not currently supported')
 @httprettified
 @scenario(create_socket)
-def test_httpretty_debugs_socket_recvfrom(context):
+def test_httpretty_debugs_socket_recvfrom(context=None):
     "HTTPretty should forward_and_trace socket.recvfrom"
 
     expect(context.sock.recvfrom).when.called.to.throw(
@@ -72,7 +72,7 @@ def test_httpretty_debugs_socket_recvfrom(context):
 @skip('not currently supported')
 @httprettified
 @scenario(create_socket)
-def test_httpretty_debugs_socket_recv_into(context):
+def test_httpretty_debugs_socket_recv_into(context=None):
     "HTTPretty should forward_and_trace socket.recv_into"
     buf = bytearray()
     expect(context.sock.recv_into).when.called_with(buf).to.throw(
@@ -83,7 +83,7 @@ def test_httpretty_debugs_socket_recv_into(context):
 @skip('not currently supported')
 @httprettified
 @scenario(create_socket)
-def test_httpretty_debugs_socket_recvfrom_into(context):
+def test_httpretty_debugs_socket_recvfrom_into(context=None):
     "HTTPretty should forward_and_trace socket.recvfrom_into"
 
     expect(context.sock.recvfrom_into).when.called.to.throw(

tests/functional/test_requests.py

@@ -768,7 +768,7 @@ def test_unicode_querystrings():
 
 
 @use_tornado_server
-def test_recording_calls(port):
+def test_recording_calls(port=None):
     ("HTTPretty should be able to record calls")
     # Given a destination path:
     destination = FIXTURE_FILE("recording-1.json")