testing/web-platform/tests/user-timing/clear_non_existent_measure.any.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

test(function()
{
    self.performance.mark("mark1");
    self.performance.measure("measure1", "mark1");
    self.performance.mark("mark2");
    self.performance.measure("measure2", "mark2");

    // test that two measures have been created
    var entries = self.performance.getEntriesByType("measure");
    assert_equals(entries.length, 2, "Two measures have been created for this test.");

    // clear non-existent measure
    self.performance.clearMeasures("measure3");

    // test that "measure1" still exists
    entries = self.performance.getEntriesByName("measure1");
    assert_equals(entries[0].name, "measure1",
              "After a call to self.performance.clearMeasures(\"measure3\"), where \"measure3" +
              "\" is a non-existent measure, self.performance.getEntriesByName(\"measure1\") " +
              "returns an object containing the \"measure1\" measure.");

    // test that "measure2" still exists
    entries = self.performance.getEntriesByName("measure2");
    assert_equals(entries[0].name, "measure2",
              "After a call to self.performance.clearMeasures(\"measure3\"), where \"measure3" +
              "\" is a non-existent measure, self.performance.getEntriesByName(\"measure2\") " +
              "returns an object containing the \"measure2\" measure.");

}, "Clearing a non-existent measure doesn't affect existing measures");