Test audio files are needed, browser test needs to exit

Author: cwoffenden

test/test_browser.py

@@ -5439,7 +5439,10 @@ def test_audio_worklet_modularize(self, args):
     'minimal_with_closure': (['-sMINIMAL_RUNTIME', '--closure=1', '-Oz'],),
   })
   def test_audio_worklet_stereo_io(self, args):
-    self.btest_exit('webaudio/audioworklet_in_out_stereo.c', args=['-sAUDIO_WORKLET', '-sWASM_WORKERS'] + args)
+    os.mkdir('audio_files')
+    shutil.copy(test_file('webaudio/audio_files/emscripten-beat.mp3'), 'audio_files/')
+    shutil.copy(test_file('webaudio/audio_files/emscripten-bass.mp3'), 'audio_files/')
+    self.btest_exit('webaudio/audioworklet_in_out_stereo.c', args=['-sAUDIO_WORKLET', '-sWASM_WORKERS', '-DBROWSER_TEST'] + args)
 
   def test_error_reporting(self):
     # Test catching/reporting Error objects

test/webaudio/audioworklet_in_out_stereo.c

@@ -161,6 +161,9 @@ int main() {
   static char workletStack[AUDIO_STACK_SIZE];
   EMSCRIPTEN_WEBAUDIO_T context = emscripten_create_audio_context(NULL);
   emscripten_start_wasm_audio_worklet_thread_async(context, workletStack, sizeof workletStack, &initialised, NULL);
+#ifndef BROWSER_TEST
+  // Special case: browser tests need to exit instantly, interactive tests need to wait
   emscripten_runtime_keepalive_push();
+#endif
   return 0;
 }