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+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+//
+// Utility script for writing worker tests. In your main document do:
+//
+// <script type="text/javascript" src="worker_driver.js"></script>
+// <script type="text/javascript">
+// workerTestExec('myWorkerTestCase.js')
+// </script>
+//
+// This will then spawn a worker, define some utility functions, and then
+// execute the code in myWorkerTestCase.js. You can then use these
+// functions in your worker-side test:
+//
+// ok() - like the SimpleTest assert
+// is() - like the SimpleTest assert
+// workerTestDone() - like SimpleTest.finish() indicating the test is complete
+//
+// There are also some functions for requesting information that requires
+// SpecialPowers or other main-thread-only resources:
+//
+// workerTestGetPrefs() - request an array of prefs value from the main thread
+// workerTestGetPermissions() - request an array permissions from the MT
+// workerTestGetVersion() - request the current version string from the MT
+// workerTestGetUserAgent() - request the user agent string from the MT
+//
+// For an example see test_worker_interfaces.html and test_worker_interfaces.js.
+
+function workerTestExec(script) {
+ return new Promise(function(resolve, reject) {
+ var worker = new Worker('worker_wrapper.js');
+ worker.onmessage = function(event) {
+ is(event.data.context, "Worker",
+ "Correct context for messages received on the worker");
+ if (event.data.type == 'finish') {
+ worker.terminate();
+ SpecialPowers.forceGC();
+ resolve();
+
+ } else if (event.data.type == 'status') {
+ ok(event.data.status, event.data.context + ": " + event.data.msg);
+
+ } else if (event.data.type == 'getPrefs') {
+ var result = {};
+ event.data.prefs.forEach(function(pref) {
+ result[pref] = SpecialPowers.Services.prefs.getBoolPref(pref);
+ });
+ worker.postMessage({
+ type: 'returnPrefs',
+ prefs: event.data.prefs,
+ result: result
+ });
+
+ } else if (event.data.type == 'getPermissions') {
+ var result = {};
+ event.data.permissions.forEach(function(permission) {
+ result[permission] = SpecialPowers.hasPermission(permission, window.document);
+ });
+ worker.postMessage({
+ type: 'returnPermissions',
+ permissions: event.data.permissions,
+ result: result
+ });
+
+ } else if (event.data.type == 'getVersion') {
+ var result = SpecialPowers.Cc['@mozilla.org/xre/app-info;1'].getService(SpecialPowers.Ci.nsIXULAppInfo).version;
+ worker.postMessage({
+ type: 'returnVersion',
+ result: result
+ });
+
+ } else if (event.data.type == 'getUserAgent') {
+ worker.postMessage({
+ type: 'returnUserAgent',
+ result: navigator.userAgent
+ });
+ }
+ }
+
+ worker.onerror = function(event) {
+ reject('Worker had an error: ' + event.data);
+ };
+
+ worker.postMessage({ script: script });
+ });
+}