MOTOR-1106 ERROR: module 'os' has no attribute 'fork' (AttributeError) (#199)

(cherry picked from commit 16c476e618)

test/asyncio_tests/test_asyncio_basic.py

@@ -11,9 +11,9 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 import os
 import test
+import unittest
 from abc import ABC
 from asyncio import new_event_loop, set_event_loop
 from multiprocessing import Pipe
@@ -151,6 +151,7 @@ class AIOMotorTestBasic(AsyncIOTestCase):
 
 
 class ExecutorForkTest(AsyncIOTestCase):
+    @unittest.skipUnless(hasattr(os, "fork"), "This test requires fork")
     @asyncio_test()
     async def test_executor_reset(self):
         parent_conn, child_conn = Pipe()

test/tornado_tests/test_motor_basic.py

@@ -15,6 +15,7 @@
 """Test Motor, an asynchronous driver for MongoDB and Tornado."""
 import os
 import test
+import unittest
 from abc import ABC
 from multiprocessing import Pipe
 from test.tornado_tests import MotorTest
@@ -151,6 +152,7 @@ class MotorTestBasic(MotorTest):
 
 
 class ExecutorForkTest(MotorTest):
+    @unittest.skipUnless(hasattr(os, "fork"), "This test requires fork")
     @gen_test()
     async def test_executor_reset(self):
         parent_conn, child_conn = Pipe()