LayoutTests/performance-api/resources/timeline-api.js

if (self.importScripts)
    importScripts("../../resources/js-test-pre.js");

if (self.window)
    description("Basic Interface test for performance-timeline APIs.");

let runningInWorker = !!self.importScripts;

debug("PerformanceEntry");
shouldBeDefined("PerformanceEntry");
shouldBeTrue(`"name" in PerformanceEntry.prototype`);
shouldBeTrue(`"entryType" in PerformanceEntry.prototype`);
shouldBeTrue(`"startTime" in PerformanceEntry.prototype`);
shouldBeTrue(`"duration" in PerformanceEntry.prototype`);
shouldThrow(`new PerformanceEntry()`);

// NOTE: The APIs below may be going away. Replaced by PerformanceObserver.

debug("");
debug("Performance extensions");
shouldBeDefined(`Performance.prototype.getEntries`);
shouldBeDefined(`Performance.prototype.getEntriesByType`);
shouldBeDefined(`Performance.prototype.getEntriesByName`);

shouldBeTrue(`performance.getEntries() instanceof Array`);
if (runningInWorker) {
    // Workers don't have PerformanceNavigationTiming.
    shouldBeTrue(`performance.getEntries().length === 0`);
} else {
    shouldBeTrue(`performance.getEntries().length === 1`);
}
shouldNotThrow(`performance.mark("test");`);
if (runningInWorker) {
    markIndex = 0;
    shouldBeTrue(`performance.getEntries().length === 1`);
} else {
    markIndex = 1;
    shouldBeTrue(`performance.getEntries().length === 2`);
}
shouldBeTrue(`performance.getEntries()[markIndex] instanceof PerformanceEntry`);
shouldBeEqualToString(`performance.getEntries()[markIndex].name`, "test");
shouldBeEqualToString(`performance.getEntries()[markIndex].entryType`, "mark");
shouldBeTrue(`typeof performance.getEntries()[markIndex].startTime === "number"`);
shouldBeTrue(`typeof performance.getEntries()[markIndex].duration === "number"`);

shouldThrow(`performance.getEntriesByType()`);
shouldBeTrue(`performance.getEntriesByType("not-real").length === 0`);
shouldBeTrue(`performance.getEntriesByType("mark").length === 1`);
shouldBeTrue(`performance.getEntriesByType("mark")[0] instanceof PerformanceEntry`);
shouldBeEqualToString(`performance.getEntriesByType("mark")[0].name`, "test");
shouldBeEqualToString(`performance.getEntriesByType("mark")[0].entryType`, "mark");
shouldBeTrue(`typeof performance.getEntriesByType("mark")[0].startTime === "number"`);
shouldBeTrue(`typeof performance.getEntriesByType("mark")[0].duration === "number"`);

shouldThrow(`performance.getEntriesByName()`);
shouldBeTrue(`performance.getEntriesByName("not-real").length === 0`);
shouldBeTrue(`performance.getEntriesByName("test").length === 1`);
shouldBeTrue(`performance.getEntriesByName("test")[0] instanceof PerformanceEntry`);
shouldBeEqualToString(`performance.getEntriesByName("test")[0].name`, "test");
shouldBeEqualToString(`performance.getEntriesByName("test")[0].entryType`, "mark");
shouldBeTrue(`typeof performance.getEntriesByName("test")[0].startTime === "number"`);
shouldBeTrue(`typeof performance.getEntriesByName("test")[0].duration === "number"`);
shouldBeTrue(`performance.getEntriesByName("test", "not-real").length === 0`);
shouldBeTrue(`performance.getEntriesByName("test", "mark").length === 1`);

if (runningInWorker)
    finishJSTest();