| This is a testharness.js-based test. |
| PASS Test driver |
| PASS Window interface: attribute performance |
| PASS Window interface: window must inherit property "performance" with the proper type |
| PASS WorkerGlobalScope interface: existence and properties of interface object |
| PASS DedicatedWorkerGlobalScope interface: existence and properties of interface object |
| PASS SharedWorkerGlobalScope interface: existence and properties of interface object |
| PASS WorkerNavigator interface: existence and properties of interface object |
| PASS WorkerLocation interface: existence and properties of interface object |
| PASS Performance interface: existence and properties of interface object |
| PASS Performance interface object length |
| PASS Performance interface object name |
| PASS Performance interface: existence and properties of interface prototype object |
| PASS Performance interface: existence and properties of interface prototype object's "constructor" property |
| PASS Performance interface: operation now() |
| PASS Performance interface: attribute timeOrigin |
| PASS Performance interface: operation toJSON() |
| PASS Performance must be primary interface of window.performance |
| PASS Stringification of window.performance |
| PASS Performance interface: window.performance must inherit property "now()" with the proper type |
| PASS Performance interface: window.performance must inherit property "timeOrigin" with the proper type |
| PASS Performance interface: window.performance must inherit property "toJSON()" with the proper type |
| FAIL Test default toJSON operation of Performance assert_true: property "timeOrigin" should be present in the output of Performance.prototype.toJSON() expected true got false |
| Harness: the test ran to completion. |
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