#106: tests: aircox_streamer (#110)

- Writes tests for aircox streamer application;
- Add test utilities in aircox

Co-authored-by: bkfox <thomas bkfox net>
Reviewed-on: rc/aircox#110

aircox_streamer/tests/fake_modules/atexit.py

@@ -0,0 +1,10 @@
+registered = []
+"""Items registered by register()"""
+
+
+def register(func, *args, **kwargs):
+    registered.append(func)
+
+
+def unregister(func):
+    registered.remove(func)