justBeforeEach implementation

[brian.ma...@terminus.com]

Good afternoon all,

I'm looking for a feature in Jasmine that behaves like a "justBeforeEach", or a "prependBeforeEach". The primary motivation for this behavior is to allow spec context to change the setup for the object under test while drying code up. Consider the following implementation:

describe('a feature', function() {
  var settings;

  beforeEach(function() {
    DoSomeSetupWork(settings)
  });

  describe('when foo is bar', function() {
    beforeEach( function() {
      settings.foo = 'bar';
    });

    it('...', function() {});
  });

  describe('when foo is baz', function() {
    beforeEach( function() {
      settings.foo = 'baz';
    });

    it('...', function() {});
  });
});

The order in which the callbacks run mean DoSomeSetupWork will always run with undefined in this case. Two possible solutions:

1. prepend a function to run at the front of the callback chain.
2. maintain a separate callback list for justBeforeEach that runs after all beforeEach declarations, but in order of their declarations.

My preference is for #2 of these two options.

I'm curious if a feature like this has previously been declined for inclusion in Jasmine, and if not is this a feature that would be desirable? I have reviewed the code responsible for these behaviors and think it is within my skill set to accomplish.

-Brian

[Gregg Van Hove]

I don't think this is a feature that we really want in Jasmine. If you have similar, but slightly different setup, I would suggest you call `DoSomeSetupWork` directly in the child suites where they have all of the necessary information. This allows you to have the full context of what is being set up closer to the specs, so that when they fail unexpectedly, it is easier to figure out what the setup is.

-Gregg

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