NOTE: You might not need this. I recommend looking at other alternatives before stubbing context.

react-stub-context 

> Stub context for a component, to be used for testing purposes.

Installation

``sh
npm install react-stub-context
`

Usage

`js
var React = require('react');
var createReactClass = require('create-react-class');
var Router = require('react-router');
var Link = Router.Link;

var TestHandler = createReactClass({
getInitialState: function() {
return {
text: 'foo'
}
},

changeText: function() {
this.setState({ text: 'bar' });
},

render: function() {
return React.createElement(Link, {
to: 'home',
onClick: this.changeText
}, this.state.text);
}
});

module.exports = TestHandler
`

`js
jest.dontMock('../');

function noop() {}

describe('React Router Context Test', function() {
var React, Router, TestUtils, stubContext, TestHandler;

beforeEach(function() {
React = require.requireActual('react');
TestUtils = require.requireActual('react-dom/test-utils');
stubContext = require.requireActual('react-stub-context');
TestHandler = require('..');
Router = function() {}
});

it('has context correctly', function() {
Router.makeHref = noop;
Router.isActive = noop;

TestHandler = stubContext(TestHandler, { router: Router });

var render = TestUtils.renderIntoDocument(React.createElement(TestHandler, {}));
var link = TestUtils.findRenderedDOMComponentWithTag(render, 'a');

expect(link).toBeDefined();
expect(link.getDOMNode().innerHTML).toEqual('foo');

TestUtils.Simulate.click(link);

expect(link.getDOMNode().innerHTML).toEqual('bar');
});
});
``