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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /user-timing/clear_non_existent_mark.any.html - WPT Dashboard Interop Dashboard
- /user-timing/clear_non_existent_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 non-existent mark
self.performance.clearMarks("mark3");
// test that "mark1" still exists
entries = self.performance.getEntriesByName("mark1");
assert_equals(entries[0].name, "mark1",
"After a call to self.performance.clearMarks(\"mark3\"), where \"mark3" +
"\" is a non-existent mark, self.performance.getEntriesByName(\"mark1\") " +
"returns an object containing the \"mark1\" mark.");
// test that "mark2" still exists
entries = self.performance.getEntriesByName("mark2");
assert_equals(entries[0].name, "mark2",
"After a call to self.performance.clearMarks(\"mark3\"), where \"mark3" +
"\" is a non-existent mark, self.performance.getEntriesByName(\"mark2\") " +
"returns an object containing the \"mark2\" mark.");
}, "Clearing a non-existent mark doesn't affect existing marks");