Revert "Revert "re-enable ExitTest""

This reverts commit 1bd231605a341bea7ac841b72be212bb8df12f25.

src/python/grpcio_tests/commands.py

@@ -133,6 +133,14 @@ class TestGevent(setuptools.Command):
         # TODO(https://github.com/grpc/grpc/issues/15411) unpin gevent version
         # This test will stuck while running higher version of gevent
         'unit._auth_context_test.AuthContextTest.testSessionResumption',
+        # TODO(https://github.com/grpc/grpc/issues/15411) enable these tests
+        'unit._exit_test.ExitTest.test_in_flight_unary_unary_call',
+        'unit._exit_test.ExitTest.test_in_flight_unary_stream_call',
+        'unit._exit_test.ExitTest.test_in_flight_stream_unary_call',
+        'unit._exit_test.ExitTest.test_in_flight_stream_stream_call',
+        'unit._exit_test.ExitTest.test_in_flight_partial_unary_stream_call',
+        'unit._exit_test.ExitTest.test_in_flight_partial_stream_unary_call',
+        'unit._exit_test.ExitTest.test_in_flight_partial_stream_stream_call',
         # TODO(https://github.com/grpc/grpc/issues/17330) enable these three tests
         'channelz._channelz_servicer_test.ChannelzServicerTest.test_many_subchannels',
         'channelz._channelz_servicer_test.ChannelzServicerTest.test_many_subchannels_and_sockets',

src/python/grpcio_tests/tests/unit/_exit_test.py

@@ -71,7 +71,6 @@ def wait(process):
     process.wait()
 
 
-@unittest.skip('https://github.com/grpc/grpc/issues/7311')
 class ExitTest(unittest.TestCase):
 
     def test_unstarted_server(self):
@@ -130,6 +129,8 @@ class ExitTest(unittest.TestCase):
             stderr=sys.stderr)
         interrupt_and_wait(process)
 
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_unary_unary_call(self):
         process = subprocess.Popen(
             BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_UNARY_UNARY_CALL],
@@ -138,6 +139,8 @@ class ExitTest(unittest.TestCase):
         interrupt_and_wait(process)
 
     @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_unary_stream_call(self):
         process = subprocess.Popen(
             BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_UNARY_STREAM_CALL],
@@ -145,6 +148,8 @@ class ExitTest(unittest.TestCase):
             stderr=sys.stderr)
         interrupt_and_wait(process)
 
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_stream_unary_call(self):
         process = subprocess.Popen(
             BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_STREAM_UNARY_CALL],
@@ -153,6 +158,8 @@ class ExitTest(unittest.TestCase):
         interrupt_and_wait(process)
 
     @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_stream_stream_call(self):
         process = subprocess.Popen(
             BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_STREAM_STREAM_CALL],
@@ -161,6 +168,8 @@ class ExitTest(unittest.TestCase):
         interrupt_and_wait(process)
 
     @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_partial_unary_stream_call(self):
         process = subprocess.Popen(
             BASE_COMMAND +
@@ -169,6 +178,8 @@ class ExitTest(unittest.TestCase):
             stderr=sys.stderr)
         interrupt_and_wait(process)
 
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_partial_stream_unary_call(self):
         process = subprocess.Popen(
             BASE_COMMAND +
@@ -178,6 +189,8 @@ class ExitTest(unittest.TestCase):
         interrupt_and_wait(process)
 
     @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+    @unittest.skipIf(os.name == 'nt',
+                     'os.kill does not have required permission on Windows')
     def test_in_flight_partial_stream_stream_call(self):
         process = subprocess.Popen(
             BASE_COMMAND +