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85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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/**
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* Test basic functionality of PerformanceFront, retrieving timeline data.
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*/
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function* spawnTest() {
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let { target, front } = yield initBackend(SIMPLE_URL);
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let lastMemoryDelta = 0;
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let lastTickDelta = 0;
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let counters = {
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markers: [],
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memory: [],
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ticks: []
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};
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let deferreds = {
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markers: Promise.defer(),
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memory: Promise.defer(),
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ticks: Promise.defer()
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};
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front.on("timeline-data", handler);
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yield front.startRecording({ withMarkers: true, withMemory: true, withTicks: true });
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yield Promise.all(Object.keys(deferreds).map(type => deferreds[type].promise));
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yield front.stopRecording();
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front.off("timeline-data", handler);
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is(counters.markers.length, 1, "one marker event fired.");
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is(counters.memory.length, 3, "three memory events fired.");
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is(counters.ticks.length, 3, "three ticks events fired.");
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yield removeTab(target.tab);
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finish();
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function handler (_, name, ...args) {
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if (name === "markers") {
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if (counters.markers.length >= 1) { return; }
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let [markers] = args;
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ok(markers[0].start, "received atleast one marker with `start`");
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ok(markers[0].end, "received atleast one marker with `end`");
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ok(markers[0].name, "received atleast one marker with `name`");
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counters.markers.push(markers);
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}
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else if (name === "memory") {
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if (counters.memory.length >= 3) { return; }
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let [delta, measurement] = args;
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is(typeof delta, "number", "received `delta` in memory event");
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ok(delta > lastMemoryDelta, "received `delta` in memory event");
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ok(measurement.total, "received `total` in memory event");
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counters.memory.push({ delta, measurement });
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lastMemoryDelta = delta;
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}
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else if (name === "ticks") {
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if (counters.ticks.length >= 3) { return; }
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let [delta, timestamps] = args;
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ok(delta > lastTickDelta, "received `delta` in ticks event");
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// Timestamps aren't guaranteed to always contain tick events, since
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// they're dependent on the refresh driver, which may be blocked.
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counters.ticks.push({ delta, timestamps });
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lastTickDelta = delta;
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}
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else if (name === "frames") {
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// Nothing to do here.
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}
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else {
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ok(false, `Received unknown event: ${name}`);
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}
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if (name === "markers" && counters[name].length === 1 ||
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name === "memory" && counters[name].length === 3 ||
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name === "ticks" && counters[name].length === 3) {
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deferreds[name].resolve();
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}
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};
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}
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