Mocha Stubbed save

gistfile1.js

suite("Page");

test(".addSection adds a section and saves the page", function() {
  var page, pageSaveStub;
  page = new Page({
    sections: []
  });
  
  // page.save would call the server, stub it with a successful query
  pageSaveStub = sinon.stub(page, 'save', function(attributes, options) {
    return options.success();
  });
  
  page.addSection({
    name: 'Introduction'
  });
  
  assert.lengthOf(page.sections, 1, "Expected the page to have 1 section");
  assert.ok(
    pageSaveStub.calledOnce,
    "Expected page.save to be called once but was called " + viewCloseSpy.callCount + " times"
  );
});