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1// META: script=performanceobservers.js
2
3  async_test(function (t) {
4    var stored_entries = [];
5    var stored_entries_by_type = [];
6    var observer = new PerformanceObserver(
7        t.step_func(function (entryList, obs) {
8
9          stored_entries = entryList.getEntries();
10          stored_entries_by_type = entryList.getEntriesByType("mark");
11          stored_entries_by_name = entryList.getEntriesByName("name-repeat");
12          var startTimeOfMark2 = entryList.getEntriesByName("mark2")[0].startTime;
13
14          checkSorted(stored_entries);
15          checkEntries(stored_entries, [
16            {entryType: "measure", name: "measure1"},
17            {entryType: "measure", name: "measure2"},
18            {entryType: "measure", name: "measure3"},
19            {entryType: "measure", name: "name-repeat"},
20            {entryType: "mark", name: "mark1"},
21            {entryType: "mark", name: "mark2"},
22            {entryType: "measure", name: "measure-matching-mark2-1"},
23            {entryType: "measure", name: "measure-matching-mark2-2"},
24            {entryType: "mark", name: "name-repeat"},
25            {entryType: "mark", name: "name-repeat"},
26          ]);
27
28          checkSorted(stored_entries_by_type);
29          checkEntries(stored_entries_by_type, [
30            {entryType: "mark", name: "mark1"},
31            {entryType: "mark", name: "mark2"},
32            {entryType: "mark", name: "name-repeat"},
33            {entryType: "mark", name: "name-repeat"},
34          ]);
35
36          checkSorted(stored_entries_by_name);
37          checkEntries(stored_entries_by_name, [
38            {entryType: "measure", name: "name-repeat"},
39            {entryType: "mark", name: "name-repeat"},
40            {entryType: "mark", name: "name-repeat"},
41          ]);
42
43          observer.disconnect();
44          t.done();
45        })
46      );
47
48    observer.observe({entryTypes: ["mark", "measure"]});
49
50    self.performance.mark("mark1");
51    self.performance.measure("measure1");
52    wait(); // Ensure mark1 !== mark2 startTime by making sure performance.now advances.
53    self.performance.mark("mark2");
54    self.performance.measure("measure2");
55    self.performance.measure("measure-matching-mark2-1", "mark2");
56    wait(); // Ensure mark2 !== mark3 startTime by making sure performance.now advances.
57    self.performance.mark("name-repeat");
58    self.performance.measure("measure3");
59    self.performance.measure("measure-matching-mark2-2", "mark2");
60    wait(); // Ensure name-repeat startTime will differ.
61    self.performance.mark("name-repeat");
62    wait(); // Ensure name-repeat startTime will differ.
63    self.performance.measure("name-repeat");
64  }, "getEntries, getEntriesByType, getEntriesByName sort order");
65