Add unit test to check if the level is set on all categories

test/global-log-level-test.js

@@ -81,6 +81,41 @@ vows.describe('log4js global loglevel').addBatch({
       log2.removeLevel();
       assert.equal(log1.level.toString(), oldLevel);
       assert.equal(log2.level.toString(), oldLevel);
+    },
+
+    'set level on all categories': function(log4js) {
+      // Get 2 loggers
+      var log1 = log4js.getLogger('log1');
+      var log2 = log4js.getLogger('log2');
+
+      // First a test with 2 categories with different levels
+      var config = {
+        'levels': {
+          'log1': 'ERROR',
+          'log2': 'WARN'
+        }
+      };
+      log4js.configure(config);
+
+      // Check if the levels are set correctly
+      assert.equal('ERROR', log1.level.toString());
+      assert.equal('WARN', log2.level.toString());
+
+      log1.removeLevel();
+      log2.removeLevel();
+
+      // Almost identical test, but now we set
+      // level on all categories
+      var config2 = {
+        'levels': {
+          '[all]': 'DEBUG'
+        }
+      };
+      log4js.configure(config2);
+
+      // Check if the loggers got the DEBUG level
+      assert.equal('DEBUG', log1.level.toString());
+      assert.equal('DEBUG', log2.level.toString());
     }
   }
 }).export(module);