1 files changed, 55 insertions, 0 deletions
diff --git a/testing/marionette/harness/marionette_harness/tests/harness_unit/test_marionette_test_result.py b/testing/marionette/harness/marionette_harness/tests/harness_unit/test_marionette_test_result.py
new file mode 100644
index 0000000000..6269b4135e
--- /dev/null
+++ b/testing/marionette/harness/marionette_harness/tests/harness_unit/test_marionette_test_result.py
@@ -0,0 +1,55 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import mozunit
+import pytest
+
+from marionette_harness import MarionetteTestResult
+
+
+@pytest.fixture
+def empty_marionette_testcase():
+    """Testable MarionetteTestCase class"""
+    from marionette_harness import MarionetteTestCase
+
+    class EmptyTestCase(MarionetteTestCase):
+        def test_nothing(self):
+            pass
+
+    return EmptyTestCase
+
+
+@pytest.fixture
+def empty_marionette_test(mock_marionette, empty_marionette_testcase):
+    return empty_marionette_testcase(
+        lambda: mock_marionette, lambda: mock_httpd, "test_nothing"
+    )
+
+
+@pytest.mark.parametrize("has_crashed", [True, False])
+def test_crash_is_recorded_as_error(empty_marionette_test, logger, has_crashed):
+    """Number of errors is incremented by stopTest iff has_crashed is true"""
+    # collect results from the empty test
+    result = MarionetteTestResult(
+        marionette=empty_marionette_test._marionette_weakref(),
+        logger=logger,
+        verbosity=1,
+        stream=None,
+        descriptions=None,
+    )
+    result.startTest(empty_marionette_test)
+    assert len(result.errors) == 0
+    assert len(result.failures) == 0
+    assert result.testsRun == 1
+    assert result.shouldStop is False
+    result.stopTest(empty_marionette_test)
+    assert result.shouldStop == has_crashed
+    if has_crashed:
+        assert len(result.errors) == 1
+    else:
+        assert len(result.errors) == 0
+
+
+if __name__ == "__main__":
+    mozunit.main("-p", "no:terminalreporter", "--log-tbpl=-", "--capture", "no")