Made a start on writing some tests. They're currently failing though …

…– testing for an expection when submitting with an API key – not sure what I should be checking for here...

package.json

@@ -17,7 +17,9 @@
     "webpagetest": "~0.3.3"
   },
   "devDependencies": {
-    "jshint": "^2.7.0"
+    "jshint": "^2.7.0",
+    "chai": "^2.3.0",
+    "mocha": "^2.2.5"
   },
   "scripts": {
     "js": "jshint ./perfbudget.js"

test/cli.js

@@ -0,0 +1,61 @@
+/**
+ * Command Line Tests
+ */
+
+var mocha = require('mocha'),
+    chai = require('chai'),
+    expect = chai.expect,
+    perfbudget = require('../perfbudget.js'),
+    cli = require('../lib/normalizeCli.js');
+
+describe('perfbudget', function() {
+
+  // set timeout to account for time taken to get results
+  this.timeout(60000);
+
+  it('should fail if no API Key is provided', function () {
+    var options = {
+      "url": "http://www.bbc.co.uk",
+      "key": "",
+      "location": "Dulles:Chrome",
+      "wptInstance": "www.webpagetest.org",
+      "video": 1,
+      "runs": 1,
+      "pollResults": 5,
+      "timeout": 60,
+      "repeatView": false,
+      "budget": {
+        "render": "1000",
+        "SpeedIndex": "1000"
+      }
+    };
+
+    expect(function() {
+      perfbudget.runTest('123', 0);
+    }).to.throw();
+  });
+
+  // should return metrics
+  it('should return results for requested metrics', function (done) {
+    var options = {
+      "url": "http://www.bbc.co.uk",
+      "key": "",
+      "location": "Dulles:Chrome",
+      "wptInstance": "www.webpagetest.org",
+      "video": 1,
+      "runs": 1,
+      "pollResults": 5,
+      "timeout": 60,
+      "repeatView": false,
+      "budget": {
+        "render": "1000",
+        "SpeedIndex": "1000"
+      }
+    };
+
+    perfbudget.runTest(options, function (err) {
+      if (err) throw err;
+      done();
+    });
+  });
+});