// META: title=tests for navigator.userAgentData test(t => { const brands = navigator.userAgentData.brands; assert_true(brands.every(brand => brand.brand.length < 32), "No brand should be longer than 32 characters."); }); test(t => { const uaData = navigator.userAgentData.toJSON(); assert_own_property(uaData, "brands", "toJSON() output has brands member"); assert_own_property(uaData, "mobile", "toJSON() output has mobile member"); assert_own_property(uaData, "platform", "toJSON() output has platform member"); }, "test NavigatorUAData.toJSON() output"); promise_test(() => { return navigator.userAgentData.getHighEntropyValues(["architecture"]).then( hints => assert_true(["x86", "arm"].some(item => item == hints.architecture)) ); }, "Arch should be one of two permitted values.");