Expand alternatives to import aio module

src/python/grpcio_tests/tests_aio/unit/init_test.py

@@ -14,17 +14,26 @@
 import logging
 import unittest
 
-import grpc
-
 from tests_aio.unit._test_base import AioTestBase
 
 
 class TestInit(AioTestBase):
 
+    async def test_grpc(self):
+        import grpc  # pylint: disable=wrong-import-position
+        channel = grpc.aio.insecure_channel('dummy')
+        self.assertIsInstance(channel, grpc.aio.Channel)
+
     async def test_grpc_dot_aio(self):
+        import grpc.aio  # pylint: disable=wrong-import-position
         channel = grpc.aio.insecure_channel('dummy')
         self.assertIsInstance(channel, grpc.aio.Channel)
 
+    async def test_aio_from_grpc(self):
+        from grpc import aio  # pylint: disable=wrong-import-position
+        channel = aio.insecure_channel('dummy')
+        self.assertIsInstance(channel, aio.Channel)
+
 
 if __name__ == '__main__':
     logging.basicConfig(level=logging.DEBUG)