diff --git a/test/subcategories-test.js b/test/subcategories-test.js
new file mode 100644
index 0000000..32ff9b2
--- /dev/null
+++ b/test/subcategories-test.js
@@ -0,0 +1,86 @@
+"use strict";
+var assert = require('assert')
+, vows = require('vows')
+, sandbox = require('sandboxed-module')
+, log4js = require('../lib/log4js')
+, levels = require('../lib/levels');
+
+vows.describe('subcategories').addBatch({
+    'loggers created after levels configuration is loaded': {
+      topic: function() {
+
+        log4js.configure({
+          "levels": {
+            "sub1": "WARN",
+            "sub1.sub11": "TRACE",
+            "sub1.sub11.sub111": "WARN",
+            "sub1.sub12": "INFO"            
+          }
+        }, { reloadSecs: 30 })
+
+        return {
+          "sub1":  log4js.getLogger('sub1'), // WARN
+          "sub11":  log4js.getLogger('sub1.sub11'), // TRACE
+          "sub111":  log4js.getLogger('sub1.sub11.sub111'), // WARN
+          "sub12":  log4js.getLogger('sub1.sub12'), // INFO
+
+          "sub13":  log4js.getLogger('sub1.sub13'), // Inherits sub1: WARN
+          "sub112":  log4js.getLogger('sub1.sub11.sub112'), // Inherits sub1.sub11: TRACE
+          "sub121":  log4js.getLogger('sub1.sub12.sub121'), // Inherits sub12: INFO
+          "sub0":  log4js.getLogger('sub0') // Not defined, not inherited: TRACE
+        };
+      },
+      'check logger levels': function(loggers) {
+        assert.equal(loggers.sub1.level, levels.WARN);
+        assert.equal(loggers.sub11.level, levels.TRACE);
+        assert.equal(loggers.sub111.level, levels.WARN);
+        assert.equal(loggers.sub12.level, levels.INFO);
+
+        assert.equal(loggers.sub13.level, levels.WARN);
+        assert.equal(loggers.sub112.level, levels.TRACE);
+        assert.equal(loggers.sub121.level, levels.INFO);
+        assert.equal(loggers.sub0.level, levels.TRACE);         
+      }
+    },
+    'loggers created before levels configuration is loaded': {
+      topic: function() {
+
+        var loggers = {
+          "sub1":  log4js.getLogger('sub1'), // WARN
+          "sub11":  log4js.getLogger('sub1.sub11'), // TRACE
+          "sub111":  log4js.getLogger('sub1.sub11.sub111'), // WARN
+          "sub12":  log4js.getLogger('sub1.sub12'), // INFO
+
+          "sub13":  log4js.getLogger('sub1.sub13'), // Inherits sub1: WARN
+          "sub112":  log4js.getLogger('sub1.sub11.sub112'), // Inherits sub1.sub11: TRACE
+          "sub121":  log4js.getLogger('sub1.sub12.sub121'), // Inherits sub12: INFO
+          "sub0":  log4js.getLogger('sub0') // Not defined, not inherited: TRACE
+        };
+
+
+        log4js.configure({
+          "levels": {
+            "sub1": "WARN",
+            "sub1.sub11": "TRACE",
+            "sub1.sub11.sub111": "WARN",
+            "sub1.sub12": "INFO"            
+          }
+        }, { reloadSecs: 30 })
+
+        return loggers;
+
+
+      },
+      'check logger levels': function(loggers) {
+        assert.equal(loggers.sub1.level, levels.WARN);
+        assert.equal(loggers.sub11.level, levels.TRACE);
+        assert.equal(loggers.sub111.level, levels.WARN);
+        assert.equal(loggers.sub12.level, levels.INFO);
+
+        assert.equal(loggers.sub13.level, levels.WARN);
+        assert.equal(loggers.sub112.level, levels.TRACE);
+        assert.equal(loggers.sub121.level, levels.INFO);
+        assert.equal(loggers.sub0.level, levels.TRACE);         
+      }
+    }
+}).exportTo(module);