What's a good way to reuse test code using Jasmine?

Question

I\'m using the Jasmine BDD Javascript library and really enjoying it. I have test code that I\'d like to reuse (for example, testing multiple implementations of a base clas

Answer 1

This is similar to starmer's answer, but after working through it I found some differences to point out. The downside is that if the spec fails you just see 'should adhere to common saving specifications' in the Jasmine report. The stack trace is the only way to find where it failed.

// common specs to execute
self.executeCommonSpecifications = function (vm) {
  // I found having the describe( wrapper here doesn't work
  self.shouldCallTheDisplayModelsSaveMethod(vm);
}
self.shouldCallTheDisplaysSaveMethod = function (vm) {
  expect(vm.save.calls.count()).toBe(1);
};

// spec add an it so that the beforeEach is called before calling this
beforeEach(function(){
  // this gets called if wrapped in the it
  vm.saveChanges();
}
it('should adhere to common saving specifications', function () {
  executeSavingDisplaysCommonSpecifications(vm);
});