Write unit tests for android.speech.tts.
Change-Id: Ie5b3b4cdd13be2babee9a44bae00da179b372d12
diff --git a/core/java/android/speech/tts/TextToSpeech.java b/core/java/android/speech/tts/TextToSpeech.java
index cd065ec..7a174af 100755
--- a/core/java/android/speech/tts/TextToSpeech.java
+++ b/core/java/android/speech/tts/TextToSpeech.java
@@ -486,6 +486,11 @@
private final Object mStartLock = new Object();
private String mRequestedEngine;
+ // Whether to initialize this TTS object with the default engine,
+ // if the requested engine is not available. Valid only if mRequestedEngine
+ // is not null. Used only for testing, though potentially useful API wise
+ // too.
+ private final boolean mUseFallback;
private final Map<String, Uri> mEarcons;
private final Map<String, Uri> mUtterances;
private final Bundle mParams = new Bundle();
@@ -519,7 +524,7 @@
* @param engine Package name of the TTS engine to use.
*/
public TextToSpeech(Context context, OnInitListener listener, String engine) {
- this(context, listener, engine, null);
+ this(context, listener, engine, null, true);
}
/**
@@ -529,10 +534,11 @@
* @hide
*/
public TextToSpeech(Context context, OnInitListener listener, String engine,
- String packageName) {
+ String packageName, boolean useFallback) {
mContext = context;
mInitListener = listener;
mRequestedEngine = engine;
+ mUseFallback = useFallback;
mEarcons = new HashMap<String, Uri>();
mUtterances = new HashMap<String, Uri>();
@@ -567,10 +573,21 @@
private int initTts() {
// Step 1: Try connecting to the engine that was requested.
- if (mRequestedEngine != null && mEnginesHelper.isEngineInstalled(mRequestedEngine)) {
- if (connectToEngine(mRequestedEngine)) {
- mCurrentEngine = mRequestedEngine;
- return SUCCESS;
+ if (mRequestedEngine != null) {
+ if (mEnginesHelper.isEngineInstalled(mRequestedEngine)) {
+ if (connectToEngine(mRequestedEngine)) {
+ mCurrentEngine = mRequestedEngine;
+ return SUCCESS;
+ } else if (!mUseFallback) {
+ mCurrentEngine = null;
+ dispatchOnInit(ERROR);
+ return ERROR;
+ }
+ } else if (!mUseFallback) {
+ Log.i(TAG, "Requested engine not installed: " + mRequestedEngine);
+ mCurrentEngine = null;
+ dispatchOnInit(ERROR);
+ return ERROR;
}
}