clear_one_mark.any.js

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This WPT test may be referenced by the following Test IDs:
- /user-timing/clear_one_mark.any.html - WPT Dashboard Interop Dashboard
- /user-timing/clear_one_mark.any.worker.html - WPT Dashboard Interop Dashboard

test(function() {

    self.performance.mark("mark1");

    self.performance.mark("mark2");

    // test that two marks have been created

    var entries = self.performance.getEntriesByType("mark");

    assert_equals(entries.length, 2, "Two marks have been created for this test.");

    // clear existent mark

    self.performance.clearMarks("mark1");

    // test that "mark1" was cleared

    entries = self.performance.getEntriesByName("mark1");

    assert_equals(entries.length, 0,

              "After a call to self.performance.clearMarks(\"mark1\"), " +

              "window.performance.getEntriesByName(\"mark1\") returns an empty object.");

    // test that "mark2" still exists

    entries = self.performance.getEntriesByName("mark2");

    assert_equals(entries[0].name, "mark2",

              "After a call to self.performance.clearMarks(\"mark1\"), " +

              "window.performance.getEntriesByName(\"mark2\") returns an object containing the " +

              "\"mark2\" mark.");

}, "Clearing an existent mark doesn't affect other existing marks");