diff --git a/test/array_find.js b/test/array_find.js
new file mode 100644
index 0000000..933fb7a
--- /dev/null
+++ b/test/array_find.js
@@ -0,0 +1,10 @@
+var expect = require('expect');
+
+var arrayFind = require('../lib/array_find');
+
+describe('buildConfigName', function () {
+  it('returns undefined if called with non-array', function (done) {
+    expect(arrayFind({})).toEqual(undefined);
+    done();
+  });
+});