Add __init__ setup, pytest-trio and split up tests

setup.cfg

@@ -1,5 +1,6 @@
 [tool:pytest]
 testpaths = test
+trio_mode = true
 
 [flake8]
 max-line-length = 80

simple_message_channels/smc.py

@@ -2,10 +2,37 @@
 
 __all__ = ["SimpleMessageChannel"]
 
+from typing import List, Optional
 
+import attr
+
+
+@attr.s(auto_attribs=True)
 class SimpleMessageChannel:
     """A simple message channel."""
 
+    message: Optional[bytes] = None
+    ptr: int = 0
+    varint: int = 0
+    factor: int = 1
+    length: int = 0
+    header: int = 0
+    state: int = 0
+    consumed: int = 0
+    max_size: int = 8 * 1024 * 1024
+    types: List = attr.Factory(list)
+
+    receiving: bool = False
+    destroyed: bool = False
+    error: Optional[Exception] = None
+
+    # TODO(decentral1se): need to lookup type of what is being passed in
+    # context: ???
+
+    # TODO(decentral1se): allow to override instead of callback interface!?
+    # onmissing: ???
+    # onmessage: ???
+
     async def send(self, channel: int, type: int, message: bytes) -> bytes:
         pass
 

test/test_smc.py

@@ -1,10 +1,17 @@
-async def test_send_recv(smc):
+async def test_send_produces_bytes(smc):
     channel, type, message = 0, 0, b"abc"
 
     payload = await smc.send(channel, type, message)
     assert isinstance(payload, bytes)
 
-    async with smc.recv(payload) as response:
-        assert response.channel == channel
-        assert response.type == type
-        assert response.message == message
+
+# async def test_recv_context_manager(smc):
+#     channel, type, message = 0, 0, b"abc"
+
+#     payload = await smc.send(channel, type, message)
+#     assert isinstance(payload, bytes)
+
+#     async with smc.recv(payload) as response:
+#         assert response.channel == channel
+#         assert response.type == type
+#         assert response.message == message

tox.ini

@@ -13,6 +13,7 @@ deps =
   pytest
   pytest-cov
   pytest-mock
+  pytest-trio
 commands = pytest test/ --cov={toxinidir}/simple_message_channels/ --no-cov-on-fail {posargs}
 
 [testenv:lint]