Sorseg · September 9, 2015 00:16 · Sep 9, 2015
diff --git a/problem.py b/problem.py
@@ -0,0 +1,6 @@
+async def some_coroutine():
+    await another_coroutine()
+
+
+async def another_coroutine():
+    pass
diff --git a/problem_test.py b/problem_test.py
@@ -0,0 +1,23 @@
+from unittest import TestCase, mock, main
+import asyncio
+
+from problem import some_coroutine
+
+
+class Test(TestCase):
+
+    def setUp(self):
+        self.loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(self.loop)
+
+    @mock.patch('problem.another_coroutine')
+    def test_some_coroutine(self, mock_another_coroutine):
+        async def run_test():
+            await some_coroutine()
+            mock_another_coroutine.assert_called_with()
+
+        self.loop.run_until_complete(run_test())
+
+
+if __name__ == '__main__':
+    main()