import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/webspeech/recognition/test/head.js

@@ -0,0 +1,181 @@
+"use strict";
+
+const DEFAULT_AUDIO_SAMPLE_FILE = "hello.ogg";
+const SPEECH_RECOGNITION_TEST_REQUEST_EVENT_TOPIC = "SpeechRecognitionTest:RequestEvent";
+const SPEECH_RECOGNITION_TEST_END_TOPIC = "SpeechRecognitionTest:End";
+
+var errorCodes = {
+  NO_SPEECH : "no-speech",
+  ABORTED : "aborted",
+  AUDIO_CAPTURE : "audio-capture",
+  NETWORK : "network",
+  NOT_ALLOWED : "not-allowed",
+  SERVICE_NOT_ALLOWED : "service-not-allowed",
+  BAD_GRAMMAR : "bad-grammar",
+  LANGUAGE_NOT_SUPPORTED : "language-not-supported"
+};
+
+var Services = SpecialPowers.Cu.import("resource://gre/modules/Services.jsm").Services;
+
+function EventManager(sr) {
+  var self = this;
+  var nEventsExpected = 0;
+  self.eventsReceived = [];
+
+  var allEvents = [
+    "audiostart",
+    "soundstart",
+    "speechstart",
+    "speechend",
+    "soundend",
+    "audioend",
+    "result",
+    "nomatch",
+    "error",
+    "start",
+    "end"
+  ];
+
+  var eventDependencies = {
+    "speechend": "speechstart",
+    "soundend": "soundstart",
+    "audioend": "audiostart"
+  };
+
+  var isDone = false;
+
+  // set up grammar
+  var sgl = new SpeechGrammarList();
+  sgl.addFromString("#JSGF V1.0; grammar test; public <simple> = hello ;", 1);
+  sr.grammars = sgl;
+
+  // AUDIO_DATA events are asynchronous,
+  // so we queue events requested while they are being
+  // issued to make them seem synchronous
+  var isSendingAudioData = false;
+  var queuedEventRequests = [];
+
+  // register default handlers
+  for (var i = 0; i < allEvents.length; i++) {
+    (function (eventName) {
+      sr["on" + eventName] = function (evt) {
+        var message = "unexpected event: " + eventName;
+        if (eventName == "error") {
+          message += " -- " + evt.message;
+        }
+
+        ok(false, message);
+        if (self.doneFunc && !isDone) {
+          isDone = true;
+          self.doneFunc();
+        }
+      };
+    })(allEvents[i]);
+  }
+
+  self.expect = function EventManager_expect(eventName, cb) {
+    nEventsExpected++;
+
+    sr["on" + eventName] = function(evt) {
+      self.eventsReceived.push(eventName);
+      ok(true, "received event " + eventName);
+
+      var dep = eventDependencies[eventName];
+      if (dep) {
+        ok(self.eventsReceived.indexOf(dep) >= 0,
+           eventName + " must come after " + dep);
+      }
+
+      cb && cb(evt, sr);
+      if (self.doneFunc && !isDone &&
+          nEventsExpected === self.eventsReceived.length) {
+        isDone = true;
+        self.doneFunc();
+      }
+    }
+  }
+
+  self.start = function EventManager_start() {
+    isSendingAudioData = true;
+    var audioTag = document.createElement("audio");
+    audioTag.src = self.audioSampleFile;
+
+    var stream = audioTag.mozCaptureStreamUntilEnded();
+    audioTag.addEventListener("ended", function() {
+      info("Sample stream ended, requesting queued events");
+      isSendingAudioData = false;
+      while (queuedEventRequests.length) {
+        self.requestFSMEvent(queuedEventRequests.shift());
+      }
+    });
+
+    audioTag.play();
+    sr.start(stream);
+  }
+
+  self.requestFSMEvent = function EventManager_requestFSMEvent(eventName) {
+    if (isSendingAudioData) {
+      info("Queuing event " + eventName + " until we're done sending audio data");
+      queuedEventRequests.push(eventName);
+      return;
+    }
+
+    info("requesting " + eventName);
+    Services.obs.notifyObservers(null,
+                                 SPEECH_RECOGNITION_TEST_REQUEST_EVENT_TOPIC,
+                                 eventName);
+  }
+
+  self.requestTestEnd = function EventManager_requestTestEnd() {
+    Services.obs.notifyObservers(null, SPEECH_RECOGNITION_TEST_END_TOPIC, null);
+  }
+}
+
+function buildResultCallback(transcript) {
+  return (function(evt) {
+    is(evt.results[0][0].transcript, transcript, "expect correct transcript");
+  });
+}
+
+function buildErrorCallback(errcode) {
+  return (function(err) {
+    is(err.error, errcode, "expect correct error code");
+  });
+}
+
+function performTest(options) {
+  var prefs = options.prefs;
+
+  prefs.unshift(
+    ["media.webspeech.recognition.enable", true],
+    ["media.webspeech.test.enable", true]
+  );
+
+  SpecialPowers.pushPrefEnv({set: prefs}, function() {
+    var sr = new SpeechRecognition();
+    var em = new EventManager(sr);
+
+    for (var eventName in options.expectedEvents) {
+      var cb = options.expectedEvents[eventName];
+      em.expect(eventName, cb);
+    }
+
+    em.doneFunc = function() {
+      em.requestTestEnd();
+      if (options.doneFunc) {
+        options.doneFunc();
+      }
+    }
+
+    em.audioSampleFile = DEFAULT_AUDIO_SAMPLE_FILE;
+    if (options.audioSampleFile) {
+      em.audioSampleFile = options.audioSampleFile;
+    }
+
+    em.start();
+
+    for (var i = 0; i < options.eventsToRequest.length; i++) {
+      em.requestFSMEvent(options.eventsToRequest[i]);
+    }
+  });
+}