double circular ref test failing, not aggressive enough

test/circular.js

@@ -0,0 +1,57 @@
+var assert = require('assert');
+var Traverse = require('traverse');
+var util = require('util');
+
+exports.circular = function (assert) {
+    var obj = { x : 3 };
+    obj.y = obj;
+    var foundY = false;
+    Traverse(obj).forEach(function (x) {
+        if (this.path.join('') == 'y') {
+            assert.equal(
+                util.inspect(this.circular.node),
+                util.inspect(obj)
+            );
+            foundY = true;
+        }
+    });
+    assert.ok(foundY);
+};
+
+exports.deepCirc = function () {
+    var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
+    obj.y[2] = obj;
+
+    var times = 0;
+    Traverse(obj).forEach(function (x) {
+        if (this.circular) {
+            assert.eql(this.circular.path, []);
+            assert.eql(this.path, [ 'y', 2 ]);
+            times ++;
+        }
+    });
+
+    assert.eql(times, 1);
+};
+
+exports.doubleCirc = function () {
+    var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
+    obj.y[2] = obj;
+    obj.x.push(obj.y);
+    console.dir(obj);
+
+    var circs = [];
+    Traverse(obj).forEach(function (x) {
+        if (this.circular) {
+            circs.push({ circ : this.circular, self : this, node : x });
+        }
+    });
+
+    assert.eql(circs[0].self.path, [ 'x', 3 ]);
+    assert.eql(circs[0].circ.path, [ 'y' ]);
+
+    assert.eql(circs[1].self.path, [ 'y', 2 ]);
+    assert.eql(circs[1].circ.path, []);
+
+    assert.eql(circs.length, 2);
+};