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Convert Jest tests to snapshot tests. #110
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,88 +1,30 @@ | ||
| /** | ||
| * # FormButton-test.js | ||
| * | ||
| * | ||
| * This class tests that the form button displays correctly | ||
| * | ||
| * *Note:* if you want to understand the structures here, add a | ||
| * ```console.log``` and then ```npm test```. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| jest.autoMockOff(); | ||
|
|
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| /** | ||
| * ## Imports | ||
| */ | ||
|
|
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| const React = require('react-native'); | ||
| const { View } = React; | ||
| import 'react-native'; | ||
| import React from 'react'; | ||
|
|
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| const utils = require('react-addons-test-utils'); | ||
| import FormButton from '../FormButton'; | ||
|
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| /** | ||
| * ## Under test | ||
| * class under test | ||
| */ | ||
| jest.dontMock('../FormButton'); | ||
| var FormButton = require('../FormButton'); | ||
| import renderer from 'react/lib/ReactTestRenderer'; | ||
|
|
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| /** | ||
| * ## Test | ||
| */ | ||
| describe('FormButton', () => { | ||
| let formButton; | ||
|
|
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| /** | ||
| * ### defaults | ||
| */ | ||
| const buttonProps = { | ||
| self: this, | ||
| test('FormButton', () => { | ||
| const props = { | ||
| isDisabled: false, | ||
| onPress: () => {}, | ||
| buttonText: 'TestString' | ||
| }; | ||
|
|
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| /** | ||
| * ### renderFormButton | ||
| * render the component under test and return | ||
| * @returns {Object} object with props, output and the renderer | ||
| */ | ||
| function renderFormButton(props) { | ||
| const renderer = utils.createRenderer(); | ||
| renderer.render(<FormButton {...props}/>); | ||
| const output = renderer.getRenderOutput(); | ||
|
|
||
| return { | ||
| props, | ||
| output, | ||
| renderer | ||
| }; | ||
| } | ||
| /** | ||
| * ### beforeEach | ||
| * before each test, render the form button with the default props | ||
| */ | ||
| beforeEach(() => { | ||
| formButton = renderFormButton(buttonProps); | ||
| }); | ||
| /** | ||
| * ### it should be fine | ||
| * the containing object should be a view | ||
| */ | ||
| it('should be fine', () => { | ||
| const {output} = formButton; | ||
| expect(output.type).toEqual(View); | ||
| }); | ||
|
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| /** | ||
| * ### it should display text | ||
| * the button should be disabled and have the correct text | ||
| */ | ||
| it('should display text', () => { | ||
| const {output} = formButton; | ||
| const button = output.props.children; | ||
| expect(button.props.isDisabled).toEqual(buttonProps.isDisabled); | ||
| const buttonText = button.props.children; | ||
| expect(buttonText).toEqual(buttonProps.buttonText); | ||
| }); | ||
| });//describe FormButton | ||
| const tree = renderer.create(<FormButton {...props} />).toJSON(); | ||
| expect(tree).toMatchSnapshot(); | ||
| }); |
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this one is curious. Jest doesn't seem to resolve relative platform paths properly but I'm not sure I'm interested in supporting this. For now, this mapping works.