Skip cancel tests on windows (#1314)

* Add query cancellation.

* clean up merge + linting

* Add back mp_context

* generating a fresh job_id for every _query_and_results call

* add cancellation test

* add cancellation test

* add seed cancellation

* remove type ignore

* add changie

* use defaultdict to simplify code

* skip test_cancel.py on windows

* use dynamic schema in test_grant_access_to.py

* use dynamic schema in test_grant_access_to.py

* revert setup

---------

Co-authored-by: Daniel Cole <[email protected]>
Co-authored-by: Michelle Ark <[email protected]>
Co-authored-by: Michelle Ark <[email protected]>
Co-authored-by: Jeremy Cohen <[email protected]>

Author: 4 people

tests/functional/test_cancel.py

@@ -1,3 +1,5 @@
+import platform
+
 import time
 
 import os
@@ -101,6 +103,9 @@ def _get_job_id(project, table_name):
     return job_id
 
 
+@pytest.mark.skipif(
+    platform.system() == "Windows", reason="running signt is unsupported on Windows."
+)
 class TestBigqueryCancelsQueriesOnKeyboardInterrupt:
     @pytest.fixture(scope="class", autouse=True)
     def models(self):