diff --git a/dgbuilder/test/_spec.js b/dgbuilder/test/_spec.js
new file mode 100644
index 0000000..9eb7e07
--- /dev/null
+++ b/dgbuilder/test/_spec.js
@@ -0,0 +1,93 @@
+/**
+ * Copyright 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+/**
+ * This test simply checks that for every .js file there exists
+ * a *_spec.js file under ./test correspondingly.
+ */
+
+/**
+ * Currently we're only checking the core components under ./red
+ * TODO: Increase the scope of this check
+ */
+
+var fs = require("fs");
+var should = require("should");
+var path = require('path');
+
+// Directories to check with .js files and _spec.js files respectively
+var jsdir = path.resolve(__dirname, "../red");
+var testdir = path.resolve(__dirname, "red");
+
+var fs = require('fs');
+var walkDirectory = function(dir, topdir, done) {
+    fs.readdir(dir, function(err, list) {
+        var error;
+        var errReturned = false;
+        if (err) {
+            return done(err);
+        }
+
+        var i = 0;
+        (function next() {
+            var file = list[i++];
+
+            // return error if there are no more files to check and error has not been previously returned to avoid multiple calls to done()
+            if (!file) {
+                if (!errReturned) {
+                    errReturned = true;
+                    return done(error);
+                }
+            } else {
+                file = path.resolve(dir, file);
+                fs.stat(file, function(err, stat) {
+                    if (stat && stat.isDirectory()) {
+                        walkDirectory(file, false, function(err) {
+                            if (!error) {
+                                error = err;
+                            }
+                            next();
+                        });
+                    } else {
+                        if (path.extname(file) === ".js") {
+                            var testFile = file.replace(jsdir, testdir).replace(".js", "_spec.js");
+                            fs.exists(testFile, function (exists) {
+                                try {
+                                    exists.should.equal(true, testFile + " does not exist");
+                                } catch (err) {
+                                    if (!topdir) {
+                                        return done(err);
+                                    } else {
+                                        error = err;
+                                        return;
+                                    }
+                                }
+                            });
+                        }
+                        next();
+                    }
+                });
+            }
+        })();
+    });
+};
+
+describe('_spec.js', function() {
+    this.timeout(50000); // we might not finish within the Mocha default timeout limit, project will also grow
+    it('is checking if all .js files have a corresponding _spec.js test file.', function(done) {
+        walkDirectory(jsdir, true, done);
+    });
+});