tests: map TextToSpeech.LANG_* to strings.

This creates a custom hamcrest matcher that maps the TextToSpeech
LANG_* constants to strings. This makes it easier to read the
text output when the tests fail.

android/eSpeakTests/src/com/reecedunn/espeak/test/SpeechSynthesisTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Reece H. Dunn
+ * Copyright (C) 2012-2014 Reece H. Dunn
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,6 +33,7 @@ import android.media.AudioFormat;
 import android.speech.tts.TextToSpeech;
 import android.util.Log;
 
+import static com.reecedunn.espeak.test.TtsMatcher.isTtsLangCode;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.*;
 import static org.hamcrest.core.AnyOf.anyOf;
@@ -248,20 +249,20 @@ public class SpeechSynthesisTest extends TextToSpeechTestCase
         final Voice voice = getVoice("de"); // language="de" country="" variant=""
         assertThat(voice, is(notNullValue()));
 
-        assertThat(voice.match(fr), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(fr_BE), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(fr_1694acad), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(fr_FR_1694acad), is(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr_BE), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr_1694acad), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr_FR_1694acad), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
 
-        assertThat(voice.match(de), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(de_1996), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(de_DE), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(de_CH_1901), is(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(de), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(de_1996), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(de_DE), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(de_CH_1901), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
 
-        assertThat(voice.match(deu), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(deu_1996), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(deu_DEU), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(deu_CHE_1901), is(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(deu), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(deu_1996), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(deu_DEU), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(deu_CHE_1901), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
     }
 
     public void testMatchVoiceWithLanguageAndCountry()
@@ -269,24 +270,24 @@ public class SpeechSynthesisTest extends TextToSpeechTestCase
         final Voice voice = getVoice("fr-fr"); // language="fr" country="fr" variant=""
         assertThat(voice, is(notNullValue()));
 
-        assertThat(voice.match(de), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(de_1996), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(de_DE), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(de_CH_1901), is(TextToSpeech.LANG_NOT_SUPPORTED));
-
-        assertThat(voice.match(fr), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(fr_FR), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(fr_BE), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(fr_1694acad), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(fr_FR_1694acad), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(fr_BE_1694acad), is(TextToSpeech.LANG_AVAILABLE));
-
-        assertThat(voice.match(fra), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(fra_FRA), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(fra_BEL), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(fra_1694acad), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(fra_FRA_1694acad), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(fra_BEL_1694acad), is(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(de), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(de_1996), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(de_DE), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(de_CH_1901), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+
+        assertThat(voice.match(fr), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(fr_FR), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(fr_BE), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(fr_1694acad), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(fr_FR_1694acad), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(fr_BE_1694acad), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+
+        assertThat(voice.match(fra), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(fra_FRA), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(fra_BEL), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(fra_1694acad), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(fra_FRA_1694acad), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(fra_BEL_1694acad), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
     }
 
     public void testMatchVoiceWithLanguageAndVariant()
@@ -294,24 +295,24 @@ public class SpeechSynthesisTest extends TextToSpeechTestCase
         final Voice voice = getVoice("hy-west"); // language="hy" country="" variant="arevmda"
         assertThat(voice, is(notNullValue()));
 
-        assertThat(voice.match(fr), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(fr_BE), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(fr_1694acad), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(fr_FR_1694acad), is(TextToSpeech.LANG_NOT_SUPPORTED));
-
-        assertThat(voice.match(hy), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(hy_AM), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(hy_arevela), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(hy_arevmda), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(hy_AM_arevela), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(hy_AM_arevmda), is(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
-
-        assertThat(voice.match(hye), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(hye_ARM), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(hye_arevela), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(hye_arevmda), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(hye_ARM_arevela), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(hye_ARM_arevmda), is(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
+        assertThat(voice.match(fr), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr_BE), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr_1694acad), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(fr_FR_1694acad), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+
+        assertThat(voice.match(hy), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(hy_AM), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(hy_arevela), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(hy_arevmda), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(hy_AM_arevela), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(hy_AM_arevmda), isTtsLangCode(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
+
+        assertThat(voice.match(hye), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(hye_ARM), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(hye_arevela), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(hye_arevmda), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(hye_ARM_arevela), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(hye_ARM_arevmda), isTtsLangCode(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
     }
 
     public void testMatchVoiceWithLanguageCountryAndVariant()
@@ -319,24 +320,24 @@ public class SpeechSynthesisTest extends TextToSpeechTestCase
         final Voice voice = getVoice("en-sc"); // language="en" country="GB" variant="scotland"
         assertThat(voice, is(notNullValue()));
 
-        assertThat(voice.match(de), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(de_1996), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(de_DE), is(TextToSpeech.LANG_NOT_SUPPORTED));
-        assertThat(voice.match(de_CH_1901), is(TextToSpeech.LANG_NOT_SUPPORTED));
-
-        assertThat(voice.match(en), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(en_GB), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(en_US), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(en_scotland), is(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
-        assertThat(voice.match(en_GB_scotland), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(en_GB_north), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-
-        assertThat(voice.match(eng), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(eng_GBR), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-        assertThat(voice.match(eng_USA), is(TextToSpeech.LANG_AVAILABLE));
-        assertThat(voice.match(eng_scotland), is(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
-        assertThat(voice.match(eng_GBR_scotland), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-        assertThat(voice.match(eng_GBR_north), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(de), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(de_1996), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(de_DE), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(voice.match(de_CH_1901), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
+
+        assertThat(voice.match(en), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(en_GB), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(en_US), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(en_scotland), isTtsLangCode(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
+        assertThat(voice.match(en_GB_scotland), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(en_GB_north), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+
+        assertThat(voice.match(eng), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(eng_GBR), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+        assertThat(voice.match(eng_USA), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+        assertThat(voice.match(eng_scotland), isTtsLangCode(TextToSpeech.LANG_AVAILABLE)); // NOTE: Android does not support LANG_VAR_AVAILABLE.
+        assertThat(voice.match(eng_GBR_scotland), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+        assertThat(voice.match(eng_GBR_north), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
     }
 
     public void testGetSampleText()

android/eSpeakTests/src/com/reecedunn/espeak/test/TextToSpeechTest.java

@@ -20,6 +20,7 @@ import java.util.Locale;
 
 import android.speech.tts.TextToSpeech;
 
+import static com.reecedunn.espeak.test.TtsMatcher.isTtsLangCode;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.*;
 
@@ -30,7 +31,7 @@ public class TextToSpeechTest extends TextToSpeechTestCase
         assertThat(getEngine(), is(notNullValue()));
 
         Locale initialLocale = getEngine().getLanguage();
-        assertThat(getEngine().isLanguageAvailable(new Locale("cel")), is(TextToSpeech.LANG_NOT_SUPPORTED));
+        assertThat(getEngine().isLanguageAvailable(new Locale("cel")), isTtsLangCode(TextToSpeech.LANG_NOT_SUPPORTED));
         assertThat(getEngine().getLanguage().getLanguage(), is(initialLocale.getLanguage()));
         assertThat(getEngine().getLanguage().getCountry(), is(initialLocale.getCountry()));
         assertThat(getEngine().getLanguage().getVariant(), is(initialLocale.getVariant()));
@@ -57,43 +58,43 @@ public class TextToSpeechTest extends TextToSpeechTestCase
                 final Locale java3 = new Locale(data.javaLanguage, "VUT", data.variant);
 
                 context = "iana1";
-                assertThat(getEngine().isLanguageAvailable(iana1), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-                assertThat(getEngine().setLanguage(iana1), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+                assertThat(getEngine().isLanguageAvailable(iana1), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+                assertThat(getEngine().setLanguage(iana1), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
                 assertThat(getEngine().getLanguage().getLanguage(), is(data.javaLanguage));
                 assertThat(getEngine().getLanguage().getCountry(), is(data.javaCountry));
                 assertThat(getEngine().getLanguage().getVariant(), is(data.variant));
 
                 context = "iana2";
-                assertThat(getEngine().isLanguageAvailable(iana2), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-                assertThat(getEngine().setLanguage(iana2), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+                assertThat(getEngine().isLanguageAvailable(iana2), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+                assertThat(getEngine().setLanguage(iana2), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
                 assertThat(getEngine().getLanguage().getLanguage(), is(data.javaLanguage));
                 assertThat(getEngine().getLanguage().getCountry(), is(data.javaCountry));
                 assertThat(getEngine().getLanguage().getVariant(), is(""));
 
                 context = "iana3";
-                assertThat(getEngine().isLanguageAvailable(iana3), is(TextToSpeech.LANG_AVAILABLE));
-                assertThat(getEngine().setLanguage(iana3), is(TextToSpeech.LANG_AVAILABLE));
+                assertThat(getEngine().isLanguageAvailable(iana3), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+                assertThat(getEngine().setLanguage(iana3), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
                 assertThat(getEngine().getLanguage().getLanguage(), is(data.javaLanguage));
                 assertThat(getEngine().getLanguage().getCountry(), is(""));
                 assertThat(getEngine().getLanguage().getVariant(), is(""));
 
                 context = "java1";
-                assertThat(getEngine().isLanguageAvailable(java1), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
-                assertThat(getEngine().setLanguage(java1), is(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+                assertThat(getEngine().isLanguageAvailable(java1), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
+                assertThat(getEngine().setLanguage(java1), isTtsLangCode(TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE));
                 assertThat(getEngine().getLanguage().getLanguage(), is(data.javaLanguage));
                 assertThat(getEngine().getLanguage().getCountry(), is(data.javaCountry));
                 assertThat(getEngine().getLanguage().getVariant(), is(data.variant));
 
                 context = "java2";
-                assertThat(getEngine().isLanguageAvailable(java2), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
-                assertThat(getEngine().setLanguage(java2), is(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+                assertThat(getEngine().isLanguageAvailable(java2), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
+                assertThat(getEngine().setLanguage(java2), isTtsLangCode(TextToSpeech.LANG_COUNTRY_AVAILABLE));
                 assertThat(getEngine().getLanguage().getLanguage(), is(data.javaLanguage));
                 assertThat(getEngine().getLanguage().getCountry(), is(data.javaCountry));
                 assertThat(getEngine().getLanguage().getVariant(), is(""));
 
                 context = "java3";
-                assertThat(getEngine().isLanguageAvailable(java3), is(TextToSpeech.LANG_AVAILABLE));
-                assertThat(getEngine().setLanguage(java3), is(TextToSpeech.LANG_AVAILABLE));
+                assertThat(getEngine().isLanguageAvailable(java3), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
+                assertThat(getEngine().setLanguage(java3), isTtsLangCode(TextToSpeech.LANG_AVAILABLE));
                 assertThat(getEngine().getLanguage().getLanguage(), is(data.javaLanguage));
                 assertThat(getEngine().getLanguage().getCountry(), is(""));
                 assertThat(getEngine().getLanguage().getVariant(), is(""));

android/eSpeakTests/src/com/reecedunn/espeak/test/TtsMatcher.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2014 Reece H. Dunn
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.reecedunn.espeak.test;
+
+import org.hamcrest.Description;
+import org.hamcrest.Factory;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeMatcher;
+
+import android.speech.tts.TextToSpeech;
+
+import com.reecedunn.espeak.InformationListAdapter;
+
+public class TtsMatcher
+{
+    private static String ttsLangCode(final Integer value) {
+        if (value == null) return "null";
+        switch (value.intValue()) {
+            case TextToSpeech.LANG_AVAILABLE:             return "TextToSpeech.LANG_AVAILABLE";
+            case TextToSpeech.LANG_COUNTRY_AVAILABLE:     return "TextToSpeech.LANG_COUNTRY_AVAILABLE";
+            case TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE: return "TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE";
+            case TextToSpeech.LANG_MISSING_DATA:          return "TextToSpeech.LANG_MISSING_DATA";
+            case TextToSpeech.LANG_NOT_SUPPORTED:         return "TextToSpeech.LANG_NOT_SUPPORTED";
+        }
+        return value.toString();
+    }
+
+    public static Matcher<Integer> isTtsLangCode(final Integer value) {
+        return new TypeSafeMatcher<Integer>() {
+            @Override
+            protected boolean matchesSafely(Integer item) {
+                return item.equals(value);
+            }
+
+            @Override
+            public void describeTo(Description description) {
+                description.appendText("expected constant: ");
+                description.appendValue(ttsLangCode(value));
+            }
+
+            @Override
+            public void describeMismatchSafely(final Integer item, final Description description) {
+                description.appendText("was ");
+                description.appendValue(ttsLangCode(item));
+            }
+        };
+    }
+}