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authorTom Ritter <tom@mozilla.com>2018-02-20 13:30:16 -0600
committerwolfbeast <mcwerewolf@gmail.com>2018-03-14 11:31:24 +0100
commitf0b727eac28244e0fa24a6107dee44e83ad0f561 (patch)
tree48b69cc58535e14fd470e395ced1468bad3706dd /dom/tests
parenta32b7f7c4e4e31669e0787e6321d74e4db71e514 (diff)
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Bug 1430173 - Add Timer Rounding tests backported from -central to -esr. r=baku, a=RyanVM
MozReview-Commit-ID: Jl4WZAamgrI --HG-- extra : transplant_source : E%DC%91lU%1C%A4l%2C%C8%23PCz%EB%F2%81%25%1F%90
Diffstat (limited to 'dom/tests')
-rwxr-xr-x[-rw-r--r--]dom/tests/browser/browser.ini2
-rwxr-xr-xdom/tests/browser/browser_performanceAPI.js139
-rwxr-xr-xdom/tests/browser/file_workerPerformance.js65
-rwxr-xr-x[-rw-r--r--]dom/tests/mochitest/general/mochitest.ini3
-rwxr-xr-xdom/tests/mochitest/general/test_reduce_time_precision.html143
-rwxr-xr-xdom/tests/mochitest/general/worker_child.js28
-rwxr-xr-xdom/tests/mochitest/general/worker_grandchild.js10
7 files changed, 390 insertions, 0 deletions
diff --git a/dom/tests/browser/browser.ini b/dom/tests/browser/browser.ini
index 35ebd56c6..4d3a60a2c 100644..100755
--- a/dom/tests/browser/browser.ini
+++ b/dom/tests/browser/browser.ini
@@ -8,6 +8,7 @@ support-files =
worker_bug1004814.js
geo_leak_test.html
dummy.html
+ file_workerPerformance.js
test_largeAllocation.html
test_largeAllocation.html^headers^
!/dom/tests/mochitest/geolocation/network_geolocation.sjs
@@ -44,3 +45,4 @@ support-files =
support-files =
test_new_window_from_content_child.html
[browser_xhr_sandbox.js]
+[browser_performanceAPI.js]
diff --git a/dom/tests/browser/browser_performanceAPI.js b/dom/tests/browser/browser_performanceAPI.js
new file mode 100755
index 000000000..2c28fe3d1
--- /dev/null
+++ b/dom/tests/browser/browser_performanceAPI.js
@@ -0,0 +1,139 @@
+/**
+ * Bug 1369303 - A test for making sure that performance APIs have been correctly
+ * spoofed or disabled.
+ */
+
+const TEST_PATH = "http://example.net/browser/" +
+ "dom/tests/browser/";
+
+const PERFORMANCE_TIMINGS = [
+ "navigationStart",
+ "unloadEventStart",
+ "unloadEventEnd",
+ "redirectStart",
+ "redirectEnd",
+ "fetchStart",
+ "domainLookupStart",
+ "domainLookupEnd",
+ "connectStart",
+ "connectEnd",
+ "requestStart",
+ "responseStart",
+ "responseEnd",
+ "domLoading",
+ "domInteractive",
+ "domContentLoadedEventStart",
+ "domContentLoadedEventEnd",
+ "domComplete",
+ "loadEventStart",
+ "loadEventEnd",
+];
+
+let isRounded = (x, expectedPrecision) => {
+ let rounded = (Math.floor(x / expectedPrecision) * expectedPrecision);
+ // First we do the perfectly normal check that should work just fine
+ if (rounded === x || x === 0)
+ return true;
+
+ // When we're diving by non-whole numbers, we may not get perfect
+ // multiplication/division because of floating points
+ if (Math.abs(rounded - x + expectedPrecision) < .0000001) {
+ return true;
+ } else if (Math.abs(rounded - x) < .0000001) {
+ return true;
+ }
+
+ // Then we handle the case where you're sub-millisecond and the timer is not
+ // We check that the timer is not sub-millisecond by assuming it is not if it
+ // returns an even number of milliseconds
+ if (expectedPrecision < 1 && Math.round(x) == x) {
+ if (Math.round(rounded) == x) {
+ return true;
+ }
+ }
+
+ ok(false, "Looming Test Failure, Additional Debugging Info: Expected Precision: " + expectedPrecision + " Measured Value: " + x +
+ " Rounded Vaue: " + rounded + " Fuzzy1: " + Math.abs(rounded - x + expectedPrecision) +
+ " Fuzzy 2: " + Math.abs(rounded - x));
+
+ return false;
+};
+
+// ================================================================================================
+// ================================================================================================
+add_task(function* () {
+ let tab = yield BrowserTestUtils.openNewForegroundTab(
+ gBrowser, TEST_PATH + "dummy.html");
+
+ yield ContentTask.spawn(tab.linkedBrowser, {
+ list: PERFORMANCE_TIMINGS,
+ precision: 2,
+ isRoundedFunc: isRounded.toString()
+ }, (data) => {
+ let timerlist = data.list;
+ let expectedPrecision = data.precision;
+ // eslint beleives that isrounded is available in this scope, but if you
+ // remove the assignment, you will see it is not
+ // eslint-disable-next-line
+ let isRounded = eval(data.isRoundedFunc);
+
+ // Check that whether the performance timing API is correctly spoofed.
+ for (let time of timerlist) {
+ ok(isRounded(content.performance.timing[time], expectedPrecision), `For reduceTimerPrecision(` + expectedPrecision + `), the timing(${time}) is not correctly rounded: ` + content.performance.timing[time]);
+ }
+
+ // Try to add some entries.
+ content.performance.mark("Test");
+ content.performance.mark("Test-End");
+ content.performance.measure("Test-Measure", "Test", "Test-End");
+
+ // Check the entries for performance.getEntries/getEntriesByType/getEntriesByName.
+ is(content.performance.getEntries().length, 3, "For reduceTimerPrecision, there should be 3 entries for performance.getEntries()");
+ for (var i = 0; i < 3; i++) {
+ let startTime = content.performance.getEntries()[i].startTime;
+ let duration = content.performance.getEntries()[i].duration;
+ ok(isRounded(startTime, expectedPrecision), "For reduceTimerPrecision(" + expectedPrecision + "), performance.getEntries(" + i + ").startTime is not rounded: " + startTime);
+ ok(isRounded(duration, expectedPrecision), "For reduceTimerPrecision(" + expectedPrecision + "), performance.getEntries(" + i + ").duration is not rounded: " + duration);
+ }
+ is(content.performance.getEntriesByType("mark").length, 2, "For reduceTimerPrecision, there should be 2 entries for performance.getEntriesByType()");
+ is(content.performance.getEntriesByName("Test", "mark").length, 1, "For reduceTimerPrecision, there should be 1 entry for performance.getEntriesByName()");
+ content.performance.clearMarks();
+ content.performance.clearMeasures();
+ content.performance.clearResourceTimings();
+ });
+ gBrowser.removeTab(tab);
+});
+
+// ================================================================================================
+// ================================================================================================
+add_task(function*() {
+ let tab = yield BrowserTestUtils.openNewForegroundTab(
+ gBrowser, TEST_PATH + "dummy.html");
+
+ yield ContentTask.spawn(tab.linkedBrowser, {
+ list: PERFORMANCE_TIMINGS,
+ precision: 2,
+ isRoundedFunc: isRounded.toString()
+ }, (data) => {
+ let expectedPrecision = data.precision;
+ let workerCall = data.workerCall;
+ return new Promise(resolve => {
+ let worker = new content.Worker("file_workerPerformance.js");
+ worker.onmessage = function(e) {
+ if (e.data.type == "status") {
+ ok(e.data.status, e.data.msg);
+ } else if (e.data.type == "finish") {
+ worker.terminate();
+ resolve();
+ } else {
+ ok(false, "Unknown message type");
+ worker.terminate();
+ resolve();
+ }
+ };
+ worker.postMessage({precision: expectedPrecision});
+ });
+ });
+
+ gBrowser.removeTab(tab);
+});
diff --git a/dom/tests/browser/file_workerPerformance.js b/dom/tests/browser/file_workerPerformance.js
new file mode 100755
index 000000000..c77ba4377
--- /dev/null
+++ b/dom/tests/browser/file_workerPerformance.js
@@ -0,0 +1,65 @@
+function ok(a, msg) {
+ postMessage({type: "status", status: !!a, msg});
+}
+
+function is(a, b, msg) {
+ ok(a === b, msg);
+}
+
+function finish() {
+ postMessage({type: "finish"});
+}
+
+let isRounded = (x, expectedPrecision) => {
+ let rounded = (Math.floor(x / expectedPrecision) * expectedPrecision);
+ // First we do the perfectly normal check that should work just fine
+ if (rounded === x || x === 0)
+ return true;
+
+ // When we're diving by non-whole numbers, we may not get perfect
+ // multiplication/division because of floating points
+ if (Math.abs(rounded - x + expectedPrecision) < .0000001) {
+ return true;
+ } else if (Math.abs(rounded - x) < .0000001) {
+ return true;
+ }
+
+ // Then we handle the case where you're sub-millisecond and the timer is not
+ // We check that the timer is not sub-millisecond by assuming it is not if it
+ // returns an even number of milliseconds
+ if (expectedPrecision < 1 && Math.round(x) == x) {
+ if (Math.round(rounded) == x) {
+ return true;
+ }
+ }
+
+ ok(false, "Looming Test Failure, Additional Debugging Info: Expected Precision: " + expectedPrecision + " Measured Value: " + x +
+ " Rounded Vaue: " + rounded + " Fuzzy1: " + Math.abs(rounded - x + expectedPrecision) +
+ " Fuzzy 2: " + Math.abs(rounded - x));
+
+ return false;
+};
+
+function runRTPTests(expectedPrecision) {
+ // Try to add some entries.
+ performance.mark("Test");
+ performance.mark("Test-End");
+ performance.measure("Test-Measure", "Test", "Test-End");
+
+ // Check the entries in performance.getEntries/getEntriesByType/getEntriesByName.
+ is(performance.getEntries().length, 3, "In a worker, for reduceTimerPrecision: Incorrect number of entries for performance.getEntries() for workers: " + performance.getEntries().length);
+ for (var i = 0; i < 3; i++) {
+ let startTime = performance.getEntries()[i].startTime;
+ let duration = performance.getEntries()[i].duration;
+ ok(isRounded(startTime, expectedPrecision), "In a worker, for reduceTimerPrecision(" + expectedPrecision + "), performance.getEntries(" + i.toString() + ").startTime is not rounded: " + startTime.toString());
+ ok(isRounded(duration, expectedPrecision), "In a worker, for reduceTimerPrecision(" + expectedPrecision + "), performance.getEntries(" + i.toString() + ").duration is not rounded: " + duration.toString());
+ }
+ is(performance.getEntriesByType("mark").length, 2, "In a worker, for reduceTimerPrecision: Incorrect number of entries for performance.getEntriesByType() for workers: " + performance.getEntriesByType("resource").length);
+ is(performance.getEntriesByName("Test", "mark").length, 1, "In a worker, for reduceTimerPrecision: Incorrect number of entries for performance.getEntriesByName() for workers: " + performance.getEntriesByName("Test", "mark").length);
+
+ finish();
+}
+
+self.onmessage = function(e) {
+ runRTPTests(e.data.precision);
+};
diff --git a/dom/tests/mochitest/general/mochitest.ini b/dom/tests/mochitest/general/mochitest.ini
index d59527801..d00ea1d4b 100644..100755
--- a/dom/tests/mochitest/general/mochitest.ini
+++ b/dom/tests/mochitest/general/mochitest.ini
@@ -43,6 +43,8 @@ support-files =
frameStoragePrevented.html
frameStorageChrome.html
frameStorageNullprincipal.sjs
+ worker_child.js
+ worker_grandchild.js
workerStorageAllowed.js
workerStoragePrevented.js
storagePermissionsUtils.js
@@ -108,6 +110,7 @@ support-files = test_offsets.js
[test_picture_mutations.html]
[test_pointerPreserves3D.html]
[test_pointerPreserves3DClip.html]
+[test_reduce_time_precision.html]
[test_resource_timing.html]
[test_resource_timing_cross_origin.html]
[test_resource_timing_frameset.html]
diff --git a/dom/tests/mochitest/general/test_reduce_time_precision.html b/dom/tests/mochitest/general/test_reduce_time_precision.html
new file mode 100755
index 000000000..6f149f28d
--- /dev/null
+++ b/dom/tests/mochitest/general/test_reduce_time_precision.html
@@ -0,0 +1,143 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Tor bug
+https://trac.torproject.org/projects/tor/ticket/1517
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Tor Bug 1517 and Mozilla Bug 1424341</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="application/javascript" src="/tests/SimpleTest/SpawnTask.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://trac.torproject.org/projects/tor/ticket/1517">Tor Bug 1517</a>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1424341">Mozilla Bug 1424341</a>
+
+<!-- Canvas for testing 'currentTime' -->
+<canvas id="test-canvas" width="100" height="100"></canvas>
+
+<!-- The main testing script -->
+<script type="application/javascript">
+ SimpleTest.requestFlakyTimeout("testing JS time-based fingerprinting");
+
+ // Prepare for test of AudioContext.currentTime
+ let audioContext = new AudioContext();
+ // Prepare for test of CanvasStream.currentTime
+ let canvas = document.getElementById("test-canvas");
+ let context = canvas.getContext("2d");
+ context.fillText("test", 20, 20);
+ let canvasStream = canvas.captureStream(25);
+
+ // Known ways to generate time stamps, in milliseconds
+ const timeStampCodes = [
+ "performance.now()",
+ "new Date().getTime()",
+ "new Event(\"\").timeStamp",
+ "new File([], \"\").lastModified",
+ "new File([], \"\").lastModifiedDate.getTime()",
+ ];
+ // These are measured in seconds, so we need to scale them up
+ var timeStampCodesDOM = timeStampCodes.concat([
+ "audioContext.currentTime * 1000",
+ "canvasStream.currentTime * 1000",
+ ]);
+
+ let isRounded = (x) => {
+ expectedPrecision = 2;
+ let rounded = (Math.floor(x / expectedPrecision) * expectedPrecision);
+ // First we do the perfectly normal check that should work just fine
+ if (rounded === x || x === 0)
+ return true;
+
+ // When we're diving by non-whole numbers, we may not get perfect
+ // multiplication/division because of floating points.
+ // When dealing with ms since epoch, a double's precision is on the order
+ // of 1/5 of a microsecond, so we use a value a little higher than that as
+ // our epsilon.
+ // To be clear, this error is introduced in our re-calculation of 'rounded'
+ // above in JavaScript.
+ if (Math.abs(rounded - x + expectedPrecision) < .0005) {
+ return true;
+ } else if (Math.abs(rounded - x) < .0005) {
+ return true;
+ }
+
+ // Then we handle the case where you're sub-millisecond and the timer is not
+ // We check that the timer is not sub-millisecond by assuming it is not if it
+ // returns an even number of milliseconds
+ if (expectedPrecision < 1 && Math.round(x) == x) {
+ if (Math.round(rounded) == x) {
+ return true;
+ }
+ }
+
+ ok(false, "Looming Test Failure, Additional Debugging Info: Expected Precision: " + expectedPrecision + " Measured Value: " + x +
+ " Rounded Vaue: " + rounded + " Fuzzy1: " + Math.abs(rounded - x + expectedPrecision) +
+ " Fuzzy 2: " + Math.abs(rounded - x));
+
+ return false;
+ };
+
+ // ================================================================================================
+ // ================================================================================================
+
+ function* checkWorker(worker) {
+ // The child worker will send the results back.
+ let checkWorkerTimeStamps = () => new Promise(function(resolve) {
+ let onMessage = function(event) {
+ worker.removeEventListener("message", onMessage);
+
+ let timeStamps = event.data;
+ for (let i = 0; i < timeStampCodes.length; i++) {
+ let timeStamp = timeStamps[i];
+ ok(isRounded(timeStamp),
+ "'" + timeStampCodes[i] +
+ "' should be rounded to nearest 2 ms in workers; saw " +
+ timeStamp);
+ }
+ resolve();
+ };
+ worker.addEventListener("message", onMessage);
+ });
+
+ // Send the codes to its child worker.
+ worker.postMessage(timeStampCodes);
+
+ // First, check the child's results.
+ yield checkWorkerTimeStamps();
+ // Then, check the grandchild's results.
+ yield checkWorkerTimeStamps();
+
+ worker.terminate();
+ }
+
+ add_task(function*() {
+ let worker = new Worker("worker_child.js");
+ // Allow ~550 ms to elapse, so we can get non-zero
+ // time values for all elements.
+ yield new Promise(resolve => window.setTimeout(resolve, 550));
+ yield checkWorker(worker);
+ });
+
+ // ================================================================================================
+ // ================================================================================================
+
+
+ add_task(function*() {
+ // Loop through each timeStampCode, evaluate it,
+ // and check if it is rounded
+ for (let timeStampCode of timeStampCodesDOM) {
+ let timeStamp = eval(timeStampCode);
+ ok(isRounded(timeStamp),
+ "'" + timeStampCode + "' should be rounded to nearest 2ms" +
+ " saw " + timeStamp);
+ }
+ });
+
+</script>
+
+
+</body>
+</html>
diff --git a/dom/tests/mochitest/general/worker_child.js b/dom/tests/mochitest/general/worker_child.js
new file mode 100755
index 000000000..fa340fc65
--- /dev/null
+++ b/dom/tests/mochitest/general/worker_child.js
@@ -0,0 +1,28 @@
+let timeStampCodes;
+let worker = new Worker("worker_grandchild.js");
+
+function listenToParent(event) {
+ self.removeEventListener("message", listenToParent);
+ timeStampCodes = event.data;
+
+ let timeStamps = [];
+ for (let timeStampCode of timeStampCodes) {
+ timeStamps.push(eval(timeStampCode));
+ }
+ // Send the timeStamps to the parent.
+ postMessage(timeStamps);
+
+ // Tell the grandchild to start.
+ worker.postMessage(timeStampCodes);
+}
+
+// The worker grandchild will send results back.
+function listenToChild(event) {
+ worker.removeEventListener("message", listenToChild);
+ // Pass the results to the parent.
+ postMessage(event.data);
+ worker.terminate();
+}
+
+worker.addEventListener("message", listenToChild);
+self.addEventListener("message", listenToParent);
diff --git a/dom/tests/mochitest/general/worker_grandchild.js b/dom/tests/mochitest/general/worker_grandchild.js
new file mode 100755
index 000000000..cd21508b2
--- /dev/null
+++ b/dom/tests/mochitest/general/worker_grandchild.js
@@ -0,0 +1,10 @@
+self.addEventListener("message", function(event) {
+ let timeStampCodes = event.data;
+
+ let timeStamps = [];
+ for (let timeStampCode of timeStampCodes) {
+ timeStamps.push(eval(timeStampCode));
+ }
+ // Send the timeStamps to the parent.
+ postMessage(timeStamps);
+});