only test if we have voices, phetsims/aqua#179

phetsims · May 15, 2023 · 27e4a55 · 27e4a55
1 parent fcb13ee
commit 27e4a55
Showing 1 changed file with 24 additions and 19 deletions.
diff --git a/js/UtteranceQueueTests.ts b/js/UtteranceQueueTests.ts
@@ -278,32 +278,37 @@ QUnit.test( 'prioritize utterances on add to back', async assert => {
   assert.ok( utteranceQueue[ 'queue' ][ 1 ].utterance === utterance5, 'utterance5 kicked utterance4 outta the park.' );
 } );
 
-QUnit.test( 'utterance.announcerOptions.voice', async assert => {
+// CT and some headless browsers don't support SpeechSynthesis
+if ( testVoicingManager.voicesProperty.value > 0 ) {
 
-  const done = assert.async();
+  QUnit.test( 'utterance.announcerOptions.voice', async assert => {
 
-  testVoicingManager.voiceProperty.value = null;
+    const done = assert.async();
 
-  const voice = testVoicingManager.voicesProperty.value[ 0 ];
-  const utterance = new Utterance( {
-    alert: 'one',
-    announcerOptions: {
-      voice: voice
-    }
-  } );
+    testVoicingManager.voiceProperty.value = null;
+
+    const voice = testVoicingManager.voicesProperty.value[ 0 ];
+    const utterance = new Utterance( {
+      alert: 'one',
+      announcerOptions: {
+        voice: voice
+      }
+    } );
+
+    testVoicingManager.endSpeakingEmitter.addListener( function myListener() {
 
-  testVoicingManager.endSpeakingEmitter.addListener( function myListener() {
+      const x = testVoicingManager[ 'speakingSpeechSynthesisUtteranceWrapper' ]!;
+      assert.ok( x, 'we should have one' );
+      assert.ok( x.speechSynthesisUtterance.voice === voice, 'voice should match the provided utterance\'s' );
+      testVoicingManager.endSpeakingEmitter.removeListener( myListener );
+      done();
+    } );
+    testVoicingManager.speakIgnoringEnabled( utterance );
 
-    const x = testVoicingManager[ 'speakingSpeechSynthesisUtteranceWrapper' ]!;
-    assert.ok( x, 'we should have one' );
-    assert.ok( x.speechSynthesisUtterance.voice === voice, 'voice should match the provided utterance\'s' );
-    testVoicingManager.endSpeakingEmitter.removeListener( myListener );
-    done();
+    testVoicingManager.voiceProperty.value = voice;
   } );
-  testVoicingManager.speakIgnoringEnabled( utterance );
+}
 
-  testVoicingManager.voiceProperty.value = voice;
-} );
 
 if ( queryParameters.manualInput ) {