[AudioPlayer] Add test for opening another file from Files.app

chrome/test/data/extensions/api_test/file_manager_browsertest/open_special_types.js

Index: chrome/test/data/extensions/api_test/file_manager_browsertest/open_special_types.js
diff --git a/chrome/test/data/extensions/api_test/file_manager_browsertest/open_special_types.js b/chrome/test/data/extensions/api_test/file_manager_browsertest/open_special_types.js
index 0da4d4063c3faad269385386525388852d8d64fa..8c04bf177006aff8e5a3c083f2680c0b2a266bf1 100644
--- a/chrome/test/data/extensions/api_test/file_manager_browsertest/open_special_types.js
+++ b/chrome/test/data/extensions/api_test/file_manager_browsertest/open_special_types.js
@@ -73,25 +73,57 @@ function audioOpen(path) {
     // Select the song.
     function(inAppId) {
       appId = inAppId;
+
+      // Add an additional audio file.
+      addEntries(['local', 'drive'], [ENTRIES.newlyAdded], this.next);
+    },
+    function(result) {
+      chrome.test.assertTrue(result);
       callRemoteTestUtil(
           'openFile', appId, ['Beautiful Song.ogg'], this.next);
     },
-    // Wait for the audio player.
+    // Wait for the audio player window.
     function(result) {
       chrome.test.assertTrue(result);
       waitForWindow('audio_player.html').then(this.next);
     },
-    // Wait for the audio tag and verify the source.
+    // Wait for the changes of the player status.
     function(inAppId) {
       audioAppId = inAppId;
       waitForElement(audioAppId, 'audio-player[playing]').then(this.next);
     },
-    // Get the title tag.
+    // Get the source file name.
     function(element) {
       chrome.test.assertEq(
           'filesystem:chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/' +
               'external' + path + '/Beautiful%20Song.ogg',
           element.attributes.currenttrackurl);
+
+      // Open another file.
+      callRemoteTestUtil(
+          'openFile', appId, ['newly added file.ogg'], this.next);
+    },
+    // Wait for the changes of the player status.
+    function(result) {
+      chrome.test.assertTrue(result);
+      var query = 'audio-player' +
+                  '[playing]' +
+                  '[currenttrackurl$="newly%20added%20file.ogg"]';
+      waitForElement(audioAppId, query).then(this.next);
+    },
+    // Get the source file name.
+    function(element) {
+      chrome.test.assertEq(
+          'filesystem:chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/' +
+              'external' + path + '/newly%20added%20file.ogg',
+          element.attributes.currenttrackurl);
+
+      // Close window
+      closeWindowAndWait(audioAppId).then(this.next);
+    },
+    // Wait for the audio player.
+    function(result) {
+      chrome.test.assertTrue(result);
       checkIfNoErrorsOccured(this.next);
     }
   ]);