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setup({ explicit_done: true });
test(t => {
assert_throws({name: "TypeError"}, function() {
new PerformanceObserver();
}, "PerformanceObserver constructor should throw TypeError if no argument is specified.");
assert_throws({name: "TypeError"}, function() {
new PerformanceObserver({});
}, "PerformanceObserver constructor should throw TypeError if the argument is not a function.");
}, "Test that PerformanceObserver constructor throws exception");
test(t => {
var observer = new PerformanceObserver(() => {
});
assert_throws({name: "TypeError"}, function() {
observer.observe();
}, "observe() should throw TypeError exception if no option specified.");
assert_throws({name: "TypeError"}, function() {
observer.observe({ unsupportedAttribute: "unsupported" });
}, "obsrve() should throw TypeError exception if the option has no 'entryTypes' attribute.");
assert_throws({name: "TypeError"}, function() {
observer.observe({ entryTypes: [] });
}, "obsrve() should throw TypeError exception if 'entryTypes' attribute is an empty sequence.");
assert_throws({name: "TypeError"}, function() {
observer.observe({ entryTypes: null });
}, "obsrve() should throw TypeError exception if 'entryTypes' attribute is null.");
assert_throws({name: "TypeError"}, function() {
observer.observe({ entryTypes: ["invalid"]});
}, "obsrve() should throw TypeError exception if 'entryTypes' attribute value is invalid.");
}, "Test that PerformanceObserver.observe throws exception");
function promiseObserve(test, options) {
return new Promise(resolve => {
performance.clearMarks();
performance.clearMeasures();
var observer = new PerformanceObserver(list => resolve(list));
observer.observe(options);
test.add_cleanup(() => observer.disconnect());
});
}
promise_test(t => {
var promise = promiseObserve(t, {entryTypes: ['mark', 'measure']});
performance.mark("test-start");
performance.mark("test-end");
performance.measure("test-measure", "test-start", "test-end");
return promise.then(list => {
assert_equals(list.getEntries().length, 3,
"There should be three observed entries.");
var markEntries = list.getEntries().filter(entry => {
return entry.entryType == "mark";
});
assert_array_equals(markEntries, performance.getEntriesByType("mark"),
"Observed 'mark' entries should equal to entries obtained by getEntriesByType.");
var measureEntries = list.getEntries().filter(entry => {
return entry.entryType == "measure";
});
assert_array_equals(measureEntries, performance.getEntriesByType("measure"),
"Observed 'measure' entries should equal to entries obtained by getEntriesByType.");
});
}, "Test for user-timing with PerformanceObserver");
promise_test(t => {
var promise = new Promise((resolve, reject) => {
performance.clearMarks();
performance.clearMeasures();
var observer = new PerformanceObserver(list => reject(list));
observer.observe({entryTypes: ['mark', 'measure']});
observer.disconnect();
t.step_timeout(resolve, 100);
});
performance.mark("test-start");
performance.mark("test-end");
performance.measure("test-measure", "test-start", "test-end");
return promise.then(() => {
assert_equals(performance.getEntriesByType("mark").length, 2);
assert_equals(performance.getEntriesByType("measure").length, 1);
}, list => {
assert_unreached("Observer callback should never be called.");
});
}, "Nothing should be notified after disconnecting observer");
promise_test(t => {
var promise = promiseObserve(t, {entryTypes: ['mark']});
performance.mark("test");
return promise.then(list => {
assert_array_equals(list.getEntries({"entryType": "mark"}),
performance.getEntriesByType("mark"),
"getEntries with entryType filter should return correct results.");
assert_array_equals(list.getEntries({"name": "test"}),
performance.getEntriesByName("test"),
"getEntries with name filter should return correct results.");
assert_array_equals(list.getEntries({"name": "test",
"entryType": "mark"}),
performance.getEntriesByName("test"),
"getEntries with name and entryType filter should return correct results.");
assert_array_equals(list.getEntries({"name": "invalid"}),
[],
"getEntries with non-existent name filter should return an empty array.");
assert_array_equals(list.getEntries({"name": "test",
"entryType": "measure"}),
[],
"getEntries with name filter and non-existent entryType should return an empty array.");
assert_array_equals(list.getEntries({"name": "invalid",
"entryType": "mark"}),
[],
"getEntries with non-existent name and entryType filter should return an empty array.");
assert_array_equals(list.getEntries({initiatorType: "xmlhttprequest"}),
[],
"getEntries with initiatorType filter should return an empty array.");
});
}, "Test for PerformanceObserverEntryList.getEntries");
promise_test(t => {
var promise = promiseObserve(t, {entryTypes: ['mark', 'measure']});
performance.mark("test");
performance.measure("test-measure", "test", "test");
return promise.then(list => {
assert_array_equals(list.getEntriesByType("mark"),
performance.getEntriesByType("mark"));
assert_array_equals(list.getEntriesByType("measure"),
performance.getEntriesByType("measure"));
});
}, "Test for PerformanceObserverEntryList.getEntriesByType");
promise_test(t => {
var promise = promiseObserve(t, {entryTypes: ['mark', 'measure']});
performance.mark("test");
performance.measure("test-measure", "test", "test");
return promise.then(list => {
assert_array_equals(list.getEntriesByName("test"),
performance.getEntriesByName("test"));
assert_array_equals(list.getEntriesByName("test-measure"),
performance.getEntriesByName("test-measure"));
});
}, "Test for PerformanceObserverEntryList.getEntriesByName");
promise_test(t => {
var promise = new Promise(resolve => {
performance.clearMarks();
performance.clearMeasures();
var observer = new PerformanceObserver(list => resolve(list));
observer.observe({entryTypes: ['mark', 'measure']});
observer.observe({entryTypes: ['mark', 'measure']});
t.add_cleanup(() => observer.disconnect());
});
performance.mark("test-start");
performance.mark("test-end");
performance.measure("test-measure", "test-start", "test-end");
return promise.then(list => {
assert_equals(list.getEntries().length, 3,
"Observed user timing entries should have only three entries.");
});
}, "Test that invoking observe method twice affects nothing");
promise_test(t => {
var promise = new Promise(resolve => {
performance.clearMarks();
performance.clearMeasures();
var observer = new PerformanceObserver(list => resolve(list));
observer.observe({entryTypes: ['mark', 'measure']});
observer.observe({entryTypes: ['mark']});
t.add_cleanup(() => observer.disconnect());
});
performance.mark("test-start");
performance.mark("test-end");
performance.measure("test-measure", "test-start", "test-end");
return promise.then(list => {
assert_equals(list.getEntries().length, 2,
"Observed user timing entries should have only two entries.");
});
}, "Test that observing filter is replaced by a new filter");
promise_test(t => {
var promise = new Promise(resolve => {
performance.clearMarks();
performance.clearMeasures();
var observer = new PerformanceObserver(list => resolve(list));
observer.observe({entryTypes: ['mark']});
observer.observe({entryTypes: ['measure']});
t.add_cleanup(() => observer.disconnect());
});
performance.mark("test-start");
performance.mark("test-end");
performance.measure("test-measure", "test-start", "test-end");
return promise.then(list => {
assert_equals(list.getEntries().length, 1,
"Observed user timing entries should have only 1 entries.");
});
}, "Test that observing filter is replaced by a new filter");
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