[TVAudio] Throw exception if 'setVolume' is called without argument

[Verification] 'setVolume' called without argument throws
InvalidValuesError.

Change-Id: I2f847be94a46342916cd3fb791b87f3882e98ca6
Signed-off-by: Piotr Czaja <p.czaja@samsung.com>

diff --git a/src/tvaudio/tvaudio_api.js b/src/tvaudio/tvaudio_api.js
index 8613d67c3c570dd49e314ca660cb9fd555438b94..58a9ffc3abd516b633df088ce6e4110af2f75471 100644 (file)
--- a/src/tvaudio/tvaudio_api.js
+++ b/src/tvaudio/tvaudio_api.js
@@ -83,6 +83,11 @@ AudioControlManager.prototype.setVolume = function(volume) {
         'Volume is out of range: ' + args.volume, 'InvalidValuesError');
   }
 
+  if (arguments.length < 1) {
+    throw new tizen.WebAPIException(tizen.WebAPIException.INVALID_VALUES_ERR,
+        'no volume argument: ' + arguments.length, 'InvalidValuesError');
+    }
+
   var ret = native.callSync('AudioControlManager_setVolume', {
     volume: args.volume
   });