diff --git a/misc/javascript/traverse.js b/misc/javascript/traverse.js
index 24260b6..0919f32 100644
--- a/misc/javascript/traverse.js
+++ b/misc/javascript/traverse.js
@@ -25,3 +25,39 @@ var bfs = function (root, callback) {
 };
 
 exports.bfs = bfs;
+
+if (require.main === module) {
+  var Tree = require('../../data-structures/tree');
+
+  var assert = require('./assert');
+
+  // Create this super tree
+  //          1
+  //        /    \
+  //      2        3
+  //    / | \   / | \ \
+  //   4  5 6  7  8 9  10
+
+  var tree = new Tree(1),
+      branch2 = tree.addChild(2),
+      branch3 = tree.addChild(3),
+      leaf4 = branch2.addChild(4),
+      leaf5 = branch2.addChild(5),
+      leaf6 = branch2.addChild(6),
+      leaf7 = branch3.addChild(7),
+      leaf8 = branch3.addChild(8),
+      leaf9 = branch3.addChild(9),
+      leaf10 = branch3.addChild(10);
+
+  // Generate `bfs` expected result
+  var expectedResult = (new Array(11)).join('0').split('').map(function (el, i) {
+        return i + 1;
+      }),
+      result = [];
+
+  bfs(tree, function (node) {
+    result.push(node.value);
+  });
+
+  assert(result, expectedResult, '#bfs returns [1..10]');
+}