[gjs] tests: check setting gtk css name

[Matthew Watson <watson src gnome org>]

commit ce34505562600d0051725ba0188c200bb116c100
Author: Matt Watson <mattdangerw gmail com>
Date:   Mon Mar 28 17:39:25 2016 -0700

    tests: check setting gtk css name
    
    Acked by Cosimo Cecchi <cosimoc gnome org>

 installed-tests/js/testGtk.js |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/installed-tests/js/testGtk.js b/installed-tests/js/testGtk.js
index 69046c6..e8c42fa 100755
--- a/installed-tests/js/testGtk.js
+++ b/installed-tests/js/testGtk.js
@@ -45,6 +45,7 @@ const MyComplexGtkSubclass = new Lang.Class({
     Template: ByteArray.fromString(template),
     Children: ['label-child', 'label-child2'],
     InternalChildren: ['internal-label-child'],
+    CssName: 'complex-subclass',
 
     _init: function(params) {
         this.parent(params);
@@ -54,6 +55,9 @@ const MyComplexGtkSubclass = new Lang.Class({
 
         JSUnit.assertNotEquals(this.label_child2, null);
         JSUnit.assertNotEquals(this._internal_label_child, null);
+
+        JSUnit.assertEquals(Gtk.Widget.get_css_name.call(MyComplexGtkSubclass),
+                            'complex-subclass');
     }
 });