test and small refactor

tests/test_loop.py

@@ -0,0 +1,29 @@
+"""
+Some tests for the base loop and asyncio loop.
+"""
+
+import threading
+
+from rendercanvas.asyncio import AsyncioLoop
+from testutils import run_tests
+
+
+def run_loop_briefly():
+    loop = AsyncioLoop()
+    loop.call_later(0.1, print, "hi from loop!")
+    loop.call_later(0.2, loop.stop)
+    loop.run()
+
+
+def test_loop_main():
+    run_loop_briefly()
+
+
+def test_loop_threaded():
+    t = threading.Thread(target=run_loop_briefly)
+    t.start()
+    t.join()
+
+
+if __name__ == "__main__":
+    run_tests(globals())