This is a testharness.js-based test.
FAIL Test that orientationchange event is not fired when the orientation does not change. promise_test: Unhandled rejection with value: object "ReferenceError: test_driver is not defined"
FAIL Test that orientationchange event is fired when the orientation changes. promise_test: Unhandled rejection with value: object "ReferenceError: test_driver is not defined"
Harness: the test ran to completion.