Harness status: OK Found 22 tests 22 Pass Pass command is a readonly defaulting to '' Pass source is readonly defaulting to null Pass command reflects initialized attribute Pass command set to undefined Pass command set to null Pass command set to false Pass command explicitly set to empty string Pass command set to true Pass command set to a number Pass command set to [] Pass command set to [1, 2, 3] Pass command set to an object Pass command set to an object with a toString function Pass CommandEventInit properties set value Pass CommandEventInit properties set value 2 Pass CommandEventInit properties set value 3 Pass source set to undefined Pass source set to null Pass source set to false Pass source set to true Pass source set to {} Pass source set to non-Element EventTarget