Initial test stuff

scope.py

@@ -0,0 +1,32 @@
+
+import asyncio
+from streams import SerialStream
+
+
+class Scope(object):
+
+    def __init__(self, stream=None):
+        if stream is None:
+            stream = SerialStream()
+        self._stream = stream
+
+    async def reset(self):
+        await self._stream.write(b'!')
+        await self._stream.readuntil(b'!')
+
+    async def get_revision(self):
+        await self._stream.write(b'?')
+        assert await self._stream.readuntil(b'\r') == b'?\r'
+        revision = await self._stream.readuntil(b'\r')
+        return revision.decode('ascii').strip()
+
+
+
+async def main():
+    s = Scope()
+    await s.reset()
+    print(await s.get_revision())
+
+if __name__ == '__main__':
+    asyncio.get_event_loop().run_until_complete(main())
+