Quelle test_performance_observer.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/dom/performance/tests/test_performance_observer.html

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
<title>Test for performance observer</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<div id="log"></div>
<script>
SimpleTest.requestFlakyTimeout("For testing when observer callbacks should not be called.");
SimpleTest.waitForExplicitFinish();

let _tests = [];

let test = promise_test = fn => {
  let cleanups = [];
  _tests.push(async () => {
    try {
      await fn({
        add_cleanup: f => { cleanups.push(f); },
        step_timeout(f, timeout) {
          var test_this = this;
          var args = Array.prototype.slice.call(arguments, 2);
          return setTimeout(() => {
            return f.apply(test_this, args);
          }, timeout);
        }
      });
    } catch(e) {
      ok(false, `got unexpected exception ${e}`);
    }
    try {
      for (const f of cleanups) {
        f();
      }
      runNextTest();
    } catch (e) {
      ok(false, `got unexpected exception during cleanup ${e}`);
    }
  });
}

function runNextTest() {
  if (!_tests.length) {
    SimpleTest.finish()
    return;
  }
  _tests.shift()();
}

function assert_equals(actual, expected, description) {
  ok(typeof actual == typeof expected,
     `${description} expected (${typeof expected}) ${expected} but got (${typeof actual}) ${actual}`);
  ok(Object.is(actual, expected),
     `${description} expected ${expected} but got ${actual}`);
}

function assert_array_equals(actual, expected, description) {
  ok(actual.length === expected.length,
     `${description} lengths differ, expected ${expected.length} but got ${actual.length}`);
  for (var i = 0; i < actual.length; i++) {
    ok(actual.hasOwnProperty(i) === expected.hasOwnProperty(i),
       `${description} property expected to be ${expected[i]} but got ${actual[i]}`);
  }
}

function assert_throws(expected_exc, func, desc) {
  try {
    func.call(this);
  } catch(e) {
    var actual = e.name || e.type;
    var expected = expected_exc.name || expected_exc.type;
    ok(actual == expected,
       `Expected '${expected}', got '${actual}'.`);
    return;
  }
  ok(false, "Expected exception, but none was thrown");
}

function assert_unreached(description) {
  ok(false, `${description} reached unreachable code`);
}
</script>
<script src="test_performance_observer.js"></script>
<script>
function makeXHR(aUrl) {
  var xmlhttp = new XMLHttpRequest();
  xmlhttp.open("get", aUrl, true);
  xmlhttp.send();
}

let waitForConsole = new Promise(resolve => {
  SimpleTest.monitorConsole(resolve, [{
    message: /JavaScript Warning: "Ignoring unsupported entryTypes: invalid."/,
  }]);
});

promise_test(t => {
  var promise = new Promise(resolve => {
    performance.clearResourceTimings();

    var observer = new PerformanceObserver(list => resolve(list));
    observer.observe({entryTypes: ['resource']});
    t.add_cleanup(() => observer.disconnect());
  });

  makeXHR("test-data.json");

  return promise.then(async list => {
    assert_equals(list.getEntries().length, 1);
    assert_array_equals(list.getEntries(),
                        performance.getEntriesByType("resource"),
                        "Observed 'resource' entries should equal to entries obtained by getEntriesByType.");

    // getEntries filtering tests
    assert_array_equals(list.getEntries({name: "http://mochi.test:8888/tests/dom/base/test/test-data.json"}),
                        performance.getEntriesByName("http://mochi.test:8888/tests/dom/base/test/test-data.json"),
                        "getEntries with name filter should return correct results.");
    assert_array_equals(list.getEntries({entryType: "resource"}),
                        performance.getEntriesByType("resource"),
                        "getEntries with entryType filter should return correct results.");
    assert_array_equals(list.getEntries({initiatorType: "xmlhttprequest"}),
                        performance.getEntriesByType("resource"),
                        "getEntries with initiatorType filter should return correct results.");
    assert_array_equals(list.getEntries({initiatorType: "link"}),
                        [],
                        "getEntries with non-existent initiatorType filter should return an empty array.");

    SimpleTest.endMonitorConsole();
    await waitForConsole;
  });
}, "resource-timing test");

runNextTest();
</script>
</body>

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