how_do_i_stub_requires.js

var Foo = require('../foo/index.js');

var someClass = new SomeClass({
  someMethod: function () {
    // How do I stub this without requiring it to be set on the prototype?
    // ex: w/o having it set on someClass.baz = Foo.bar();
    var baz = Foo.bar();
    if (baz == 'hello') {
      return 1
    }
    else {
      return 0
    }
  }
});

Note that the karma example above is relying on a key karma plugin, or at least my fork of it: https://github.com/jmreidy/karma-browserifast