  test_true(entries[0].name == measureName2,
                      "After a call to window.performance.clearMeasures(\"" + measureName1 + "\"), " +
                      "window.performance.getEntriesByName(\"" + measureName2 + "\") returns an object containing the " +
                      "\"" + measureName2 + "\" measure.");

            // clear all measures
            window.performance.clearMeasures();

            // test that all measures were cleared
            entries = window.performance.getEnt