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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
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parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<title>PerformanceObservers: observe</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="performanceobservers.js"></script>
+<h1>PerformanceObservers: observe</h1>
+<div id="log"></div>
+<script>
+ test(function () {
+ var obs = new PerformanceObserver(function () { return true; });
+ assert_throws(new TypeError(), function () {
+ obs.observe({});
+ });
+ assert_throws(new TypeError(), function () {
+ obs.observe({entryType: []});
+ });
+ }, "no entryTypes throws a TypeError");
+ test(function () {
+ var obs = new PerformanceObserver(function () { return true; });
+ assert_throws(new TypeError(), function () {
+ obs.observe({entryTypes: "mark"});
+ });
+ assert_throws(new TypeError(), function () {
+ obs.observe({entryTypes: []});
+ });
+ assert_throws(new TypeError(), function () {
+ obs.observe({entryTypes: ["this-cannot-match-an-entryType"]});
+ });
+ assert_throws(new TypeError(), function () {
+ obs.observe({entryTypes: ["marks","navigate", "resources"]});
+ });
+ }, "Empty sequence entryTypes throws a TypeError");
+
+ test(function () {
+ var obs = new PerformanceObserver(function () { return true; });
+ obs.observe({entryTypes: ["mark","this-cannot-match-an-entryType"]});
+ obs.observe({entryTypes: ["this-cannot-match-an-entryType","mark"]});
+ obs.observe({entryTypes: ["mark"], others: true});
+ }, "Filter unsupported entryType entryType names within the entryTypes sequence");
+
+ async_test(function (t) {
+ var observer = new PerformanceObserver(
+ t.step_func(function (entryList, obs) {
+ assert_equals(observer, obs, "observer is second parameter");
+ checkEntries(entryList.getEntries(),
+ [{ entryType: "measure", name: "measure1"}]);
+ observer.disconnect();
+ t.done();
+ })
+ );
+ performance.clearMarks();
+ observer.observe({entryTypes: ["mark"]});
+ observer.observe({entryTypes: ["measure"]});
+ performance.mark("mark1");
+ performance.measure("measure1");
+ }, "replace observer if already present");
+</script>