Merge pull request #106 from zixuanzh/protocol-mux-lint

Fixing linting errors in protocol_muxer and adding to Travis

.travis.yml

@@ -4,12 +4,14 @@ python:
   - "3.6"
 
 install:
+  - pip install --upgrade pip
   - pip install -r requirements.txt
-  - pip install codecov pytest pytest-cov
+  - pip install "pytest>=3.6"
+  - pip install codecov pytest-cov pytest-asyncio pylint
 
 script:
   - pytest --cov=./ -v
-  - pylint --rcfile=.pylintrc encryption host libp2p network peer stream_muxer transport tests
+  - pylint --rcfile=.pylintrc encryption host libp2p network peer protocol_muxer stream_muxer transport tests
 
 after_success:
   - codecov

protocol_muxer/multiselect.py

@@ -72,12 +72,13 @@ class Multiselect(IMultiselectMuxer):
         handshake_contents = await communicator.read_stream_until_eof()
 
         # Confirm that the protocols are the same
-        if not self.validate_handshake(handshake_contents):
+        if not validate_handshake(handshake_contents):
             raise MultiselectError("multiselect protocol ID mismatch")
 
         # Handshake succeeded if this point is reached
 
-    def validate_handshake(self, handshake_contents):
+
+def validate_handshake(handshake_contents):
     """
     Determine if handshake is valid and should be confirmed
     :param handshake_contents: contents of handshake message

protocol_muxer/multiselect_client.py

@@ -30,22 +30,11 @@ class MultiselectClient(IMultiselectClient):
         handshake_contents = await communicator.read_stream_until_eof()
 
         # Confirm that the protocols are the same
-        if not self.validate_handshake(handshake_contents):
+        if not validate_handshake(handshake_contents):
             raise MultiselectClientError("multiselect protocol ID mismatch")
 
         # Handshake succeeded if this point is reached
 
-    def validate_handshake(self, handshake_contents):
-        """
-        Determine if handshake is valid and should be confirmed
-        :param handshake_contents: contents of handshake message
-        :return: true if handshake is complete, false otherwise
-        """
-
-        # TODO: Modify this when format used by go repo for messages
-        # is added
-        return handshake_contents == MULTISELECT_PROTOCOL_ID
-
     async def select_protocol_or_fail(self, protocol, stream):
         """
         Send message to multiselect selecting protocol
@@ -117,5 +106,17 @@ class MultiselectClient(IMultiselectClient):
         else:
             raise MultiselectClientError("unrecognized response: " + response)
 
+
+def validate_handshake(handshake_contents):
+    """
+    Determine if handshake is valid and should be confirmed
+    :param handshake_contents: contents of handshake message
+    :return: true if handshake is complete, false otherwise
+    """
+
+    # TODO: Modify this when format used by go repo for messages
+    # is added
+    return handshake_contents == MULTISELECT_PROTOCOL_ID
+
 class MultiselectClientError(ValueError):
     """Raised when an error occurs in protocol selection process"""