CODEWITHSUNDEEP
javascriptbackbone.jssinon
Sergey
Sergey

Reputation: 419

TypeError: 'undefined' is not a function (evaluating 'sinon.spy()')

I'm trying to use sinon.js in testing of a backbone application. But unfortunately I cannot use spy method due to error:

TypeError: 'undefined' is not a function (evaluating 'sinon.spy()')

Here is the steps to reproduce the error:

  1. Create an empty project with backbone yeoman generator
  2. Install sinon: cd test && bower install sinon
  3. Include in test/index.html <script src="bower_components/sinon/lib/sinon.js"></script>

  4. Create spy in test/spec/test.js:

    describe('Give it some context', function () {
    describe('maybe a bit more context here', function () {
        it('should run here few assertions', function () {
          var spy = sinon.spy();
          spy.should.be.ok;
        });
    });
});

  5. Run the test with grunt: grunt test

  6. The test will fail with a described error.

Could anyone help to find out what is wrong?

Upvotes: 19

Views: 12752

Answers (4)

user2964500
user2964500

Reputation:

Unlike the other answers, I didn't install simon manually by including each individual source file. Instead I followed the advice of How To Install Sinon.JS In The Browser With Bower.

bower install http://sinonjs.org/releases/sinon-1.17.6.js

then 

bower list -p 
 'sinon-1.17.6': 'bower_components/sinon-1.17.6/index.js'

And 

 <script src="bower_components/sinon-1.17.6/index.js"></script>

Worked for me.

Upvotes: 1

Kamil Szot
Kamil Szot

Reputation: 17817

I'll just leave here the list of files that sinon conveniently forgets to load if it is loaded as a <script> or with require.js (as AMD module) - basically anything else than in node.js:

"sinon/lib/sinon.js",
"sinon/lib/sinon/spy.js",
"sinon/lib/sinon/call.js",
"sinon/lib/sinon/behavior.js",
"sinon/lib/sinon/stub.js",
"sinon/lib/sinon/mock.js",
"sinon/lib/sinon/collection.js",
"sinon/lib/sinon/assert.js",
"sinon/lib/sinon/sandbox.js",
"sinon/lib/sinon/test.js",
"sinon/lib/sinon/test_case.js",
"sinon/lib/sinon/match.js"

Feel free to skip any of those but expect sinon to fail in curious ways.

Upvotes: 14

Jason
Jason

Reputation: 10852

I encountered the same problem with sinon 1.17.2 and Chrome 47.0. After trying the above solutions and variations of those, I ended up using the nuclear option and switching to Jasmine.

For my test suite, it only took about 15 minutes of some global find-and-replace to convert my chai 'expects' into Jasmine ones and some differences around mocha before syntax; Jasmine flagged the unexpected syntax clearly. Jasmine spy objects were a fine substitute for sinon.

Upvotes: 2

Sergey
Sergey

Reputation: 419

It turned out that such functionality as spies, stubs, etc should be added manually by including scripts from lib/sinon folder. This fact is mentioned in Installation section. And due to the code of the core sinon.js file only in Node.js environment it is done automatically.

Upvotes: 13

Related Questions