diff --git a/common/predictive-text/unit_tests/headless/worker-initialization.js b/common/predictive-text/unit_tests/headless/worker-initialization.js
index 75d893a9e8..ac4a7bded2 100644
--- a/common/predictive-text/unit_tests/headless/worker-initialization.js
+++ b/common/predictive-text/unit_tests/headless/worker-initialization.js
@@ -17,6 +17,22 @@ describe('LMLayerWorker', function() {
       assert(fakePostMessage.calledOnce);
     });
 
+    it('should allow for the mocking of importScripts()', function () {
+      var fakeImportScripts;
+      var worker = new LMLayerWorker({
+        postMessage: sinon.fake(), // required, but ignored in this test case
+        importScripts: fakeImportScripts = sinon.fake()
+      });
+      
+      // Sending it the initialize it should notify us that it's initialized!
+      worker.onMessage(createMessageEventWithData({
+        message: 'initialize',
+        model: 'en-x-dummy'
+      }));
+      assert.isTrue(fakeImportScripts.calledOnce);
+    });
+
+    // TODO: remove from here; convert into integration test
     it('should work with zero arguments within a Web Worker', function() {
       var fakePostMessage;
       var WorkerInSandbox = defineLMLayerWorkerWithinSandbox({
@@ -99,6 +115,12 @@ describe('LMLayerWorker', function() {
     });
   });
 
+  describe('Message: predict', function () {
+    it.skip('should predict from a local model', function () {
+      // will need import scripts figured out
+    });
+  });
+
   /**
    * Creates a MessageEvent (for inter-worker communication), with the given data payload.
    * @param {*} data