test + fix for continuing to load despite bad audios

src/library.js

@@ -306,7 +306,10 @@ LibraryManager.library = {
         Module['preloadPlugins'].forEach(function(plugin) {
           if (handled) return;
           if (plugin['canHandle'](fullname)) {
-            plugin['handle'](byteArray, fullname, finish, onerror);
+            plugin['handle'](byteArray, fullname, finish, function() {
+              if (onerror) onerror();
+              removeRunDependency('cp ' + fullname);
+            });
             handled = true;
           }
         });

tests/runner.py

@@ -7801,10 +7801,11 @@ elif 'browser' in str(sys.argv):
     def test_sdl_audio(self):
       shutil.copyfile(path_from_root('tests', 'sounds', 'alarmvictory_1.ogg'), os.path.join(self.get_dir(), 'sound.ogg'))
       shutil.copyfile(path_from_root('tests', 'sounds', 'alarmcreatemiltaryfoot_1.wav'), os.path.join(self.get_dir(), 'sound2.wav'))
+      open(os.path.join(self.get_dir(), 'bad.ogg'), 'w').write('I claim to be audio, but am lying')
       open(os.path.join(self.get_dir(), 'sdl_audio.c'), 'w').write(self.with_report_result(open(path_from_root('tests', 'sdl_audio.c')).read()))
 
       # use closure to check for a possible bug with closure minifying away newer Audio() attributes
-      Popen(['python', EMCC, '-O2', '--minify', '0', os.path.join(self.get_dir(), 'sdl_audio.c'), '--preload-file', 'sound.ogg', '--preload-file', 'sound2.wav', '-o', 'page.html', '-s', 'EXPORTED_FUNCTIONS=["_main", "_play", "_play2"]']).communicate()
+      Popen(['python', EMCC, '-O2', '--minify', '0', os.path.join(self.get_dir(), 'sdl_audio.c'), '--preload-file', 'sound.ogg', '--preload-file', 'sound2.wav', '--preload-file', 'bad.ogg', '-o', 'page.html', '-s', 'EXPORTED_FUNCTIONS=["_main", "_play", "_play2"]']).communicate()
       self.run_browser('page.html', '', '/report_result?1')
 
     def test_sdl_audio_quickload(self):