Using dontMock() disables all mocking

[codyhatch]

This seems similar to #20 but significantly broader. Similar to the older issue, with the latest version of Jest on NPM (tagged v0.1.15), this fails:

describe('SomeTest', function() {
    it("requires underscore (unmocked) and jQuery (mocked)", function() {
        jest.dontMock('underscore');
        var _ = require('underscore');
        var $ = require('jquery');

        expect(_.mock).toBeUndefined();
        expect($.mock).toBeDefined();
    })
});

Found 1 matching tests...
 FAIL  test/client/bug-test.js (0.062s)
● SomeTest › it requires underscore (unmocked) and jQuery (mocked)
  - Expected undefined to be defined.
        at Spec.<anonymous> (/Users/cody/Coding/elephant_project/app/test/client/bug-test.js:9:24)
        at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
1 tests failed, 0 tests passed (1 total)
Run time: 1.003s

However, this works:

describe('SomeTest', function() {
    it("requires underscore (unmocked) and jQuery (mocked)", function() {
        jest.dontMock('underscore');
        var _ = require('underscore');
        jest.mock('jquery')
        var $ = require('jquery');

        expect(_.mock).toBeUndefined();
        expect($.mock).toBeDefined();
    })
});

HOWEVER, contrary to the initial bug report, this seems to be affecting more than just NPM modules. In fact, this works:

var App = require('../../src/client/code/app/app.js');

describe('test 1', function() {
  return it('should', function() {
    expect(App.mock).toBeDefined();
  });
});

But this fails:

jest.dontMock('jquery');

var App = require('../../src/client/code/app/app.js');

describe('test 1', function() {
  return it('should', function() {
    return expect(App.mock).toBeDefined();
  });
});

As does this:

jest.dontMock('../../src/client/code/app/app.js');

var $ = require('jquery');

describe('test 1', function() {
  return it('should', function() {
    return expect($.mock).toBeDefined();
  });
});

In short: Calling .dontMock() on an ANY module seems to disable mocking on ALL modules thereafter.

[codyhatch]

Closing in favour of #66, which has a much clearer description of the issue.

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