Properly end the test when expects has an error within teardown test.

mobly/base_test.py

@@ -803,6 +803,7 @@ def exec_one_test(self, test_name, test_method, record=None):
         else:
           # Check if anything failed by `expects`.
           if before_count < expects.recorder.error_count:
+            tr_record.test_error()
             teardown_test_failed = True
     except (signals.TestFailure, AssertionError) as e:
       tr_record.test_fail(e)

tests/mobly/base_test_test.py

@@ -510,6 +510,28 @@ def test_something(self):
                         "Requested 1, Skipped 0")
     self.assertEqual(bt_cls.results.summary_str(), expected_summary)
 
+  def test_teardown_test_expects_error(self):
+
+    class MockBaseTest(base_test.BaseTestClass):
+
+      def teardown_test(self):
+        expects.expect_true(False, MSG_EXPECTED_EXCEPTION)
+
+      def test_something(self):
+        pass
+
+    bt_cls = MockBaseTest(self.mock_test_cls_configs)
+    bt_cls.run()
+    actual_record = bt_cls.results.error[0]
+    self.assertEqual(actual_record.test_name, self.mock_test_name)
+    self.assertEqual(actual_record.details, MSG_EXPECTED_EXCEPTION)
+    self.assertIsNone(actual_record.extras)
+    self.assertFalse(actual_record.extra_errors)
+    self.assertTrue(actual_record.end_time)
+    expected_summary = ("Error 1, Executed 1, Failed 0, Passed 0, "
+                        "Requested 1, Skipped 0")
+    self.assertEqual(bt_cls.results.summary_str(), expected_summary)
+
   def test_teardown_test_executed_if_test_pass(self):
     my_mock = mock.MagicMock()