chore(tests): mock sleep for long running test

Author: daniel-sanche

tests/compute_engine/test__metadata.py

@@ -201,8 +201,9 @@ def test_ping_success_custom_root(mock_metrics_header_value):
     )
 
 
+@mock.patch("time.sleep", return_value=None)
 @mock.patch("google.auth.metrics.mds_ping", return_value=MDS_PING_METRICS_HEADER_VALUE)
-def test_ping_failure_custom_retry(mock_metrics_header_value):
+def test_ping_failure_custom_retry(mock_metrics_header_value, mock_sleep):
     request = make_request("")
     request.side_effect = exceptions.TransportError()
 
@@ -450,7 +451,8 @@ def test_get_failure_connection_failed(mock_sleep):
     assert request.call_count == 5
 
 
-def test_get_too_many_requests_retryable_error_failure():
+@mock.patch("time.sleep", return_value=None)
+def test_get_too_many_requests_retryable_error_failure(mock_sleep):
     request = make_request("too many requests", status=http_client.TOO_MANY_REQUESTS)
 
     with pytest.raises(exceptions.TransportError) as excinfo: