react-jasmine-matchers

Custom matchers for React

Requires ReactTestUtils: https://facebook.github.io/react/docs/test-utils.html

Configuration

var TestUtils = require('react/lib/ReactTestUtils');
var matchers = require('react-jasmine-matchers');
beforeEach(function () {
  jasmine.addMatchers(matchers(TestUtils));
});

Matchers

toBeEl()

Checks if object is element. See TestUtils.isElement()

toBeElOf(Type)

Checks if object is element of Type. See TestUtils.isElementOfType()

toBeDom()

Checks if object is DOM Component. See TestUtils.isDOMComponent()

toBeComp()

Checks if object is Composite Component. See TestUtils.isCompositeComponent()

toBeCompOf(Type)

Checks if object is Composite Component of Type. See TestUtils.isCompositeComponentWithType()

toHaveText(String|RegExp)

Checks if element's DOM node has text

Example

'use strict';
 
const Button = require('./Button');
 
describe('Button', () => {
  it('Should render <button> tag with specified content', () => {
    // Render a button with content into the document
    const button = TestUtils.renderIntoDocument(
      <Button onClick={() => null}>Test</Button>
    );
 
    const b = TestUtils.findRenderedDOMComponentWithTag(button, 'button');
    expect(b).toBeDom();
    expect(b).toHaveText('Test');
    expect(b).not.toHaveText('Oops');
  });
 
  it('Should call onClick callback when clicked', () => {
    const onClick = jasmine.createSpy('onClick');
    const button = TestUtils.renderIntoDocument(
      <Button onClick={onClick}>Test</Button>
    );
 
    TestUtils.Simulate.click(TestUtils.findRenderedDOMComponentWithTag(button, 'button'));
    expect(onClick).toHaveBeenCalled();
  });
});