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active-enzyme - npm Package Compare versions

Comparing version 1.2.1 to 2.0.0

4

build.js

@@ -1,2 +0,2 @@

'use strict';Object.defineProperty(exports,'__esModule',{value:true});var _extends=Object.assign||function(target){for(var i=1;i<arguments.length;i++){var source=arguments[i];for(var key in source){if(Object.prototype.hasOwnProperty.call(source,key)){target[key]=source[key]}}}return target};exports.shallow=shallow;exports.mount=mount;exports.render=render;exports.makeAnalyzer=makeAnalyzer;var _react=require('react');var _enzyme=require('enzyme');function shallow(){var wrapper=_enzyme.shallow.apply(undefined,arguments);return activate(function(){return wrapper})}function mount(){var wrapper=_enzyme.mount.apply(undefined,arguments);return activate(function(){return wrapper})}function render(){var wrapper=_enzyme.render.apply(undefined,arguments);return activate(function(){return wrapper})}function makeAnalyzer(component,styles){var opts=arguments.length>2&&arguments[2]!==undefined?arguments[2]:{};var transform=function(transform){return function(props){return removeUndefined(transform(props))}}(opts.transform||function(props){return props});var render=opts.type||shallow;return function(){var props=arguments.length>0&&arguments[0]!==undefined?arguments[0]:{};return render((0,_react.createElement)(component,transform(props))).lookup(styles)}}function activate(findMyself){return new Proxy(findMyself(),{get:function get(target,key){var find=function find(){for(var _len=arguments.length,findArgs=Array(_len),_key=0;_key<_len;_key++){findArgs[_key]=arguments[_key]}return activate(function(){var _findMyself;return(_findMyself=findMyself()).find.apply(_findMyself,findArgs)})};switch(key){case'find':return find;case'lookup':return function(classMap){return new Proxy({},{get:function get(target,name){if(classMap)name=classMap[name].split(' ')[0];return find('.'+name)}})};default:return findMyself()[key];}}})}function removeUndefined(obj){var result=_extends({},obj);for(var key in result){if(result[key]===undefined)delete result[key]}return result}
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'use strict';Object.defineProperty(exports,'__esModule',{value:true});var _extends=Object.assign||function(target){for(var i=1;i<arguments.length;i++){var source=arguments[i];for(var key in source){if(Object.prototype.hasOwnProperty.call(source,key)){target[key]=source[key]}}}return target};exports.shallow=shallow;exports.mount=mount;exports.render=render;exports.makeRenderer=makeRenderer;var _react=require('react');var _enzyme=require('enzyme');function shallow(){var wrapper=_enzyme.shallow.apply(undefined,arguments);return activate(function(){return wrapper})}function mount(){var wrapper=_enzyme.mount.apply(undefined,arguments);return activate(function(){return wrapper})}function render(){var wrapper=_enzyme.render.apply(undefined,arguments);return activate(function(){return wrapper})}function makeRenderer(component){var _ref=arguments.length>1&&arguments[1]!==undefined?arguments[1]:{};var _ref$method=_ref.method;var method=_ref$method===undefined?shallow:_ref$method;var _ref$transform=_ref.transform;var transform=_ref$transform===undefined?function(props){return props}:_ref$transform;var enzymeOptions=_ref.enzymeOptions;var doTransform=function doTransform(props){return removeUndefined(transform(props))};return function(){var props=arguments.length>0&&arguments[0]!==undefined?arguments[0]:{};return method((0,_react.createElement)(component,doTransform(props)),enzymeOptions)}}function activate(findMyself){var find=function find(){for(var _len=arguments.length,findArgs=Array(_len),_key=0;_key<_len;_key++){findArgs[_key]=arguments[_key]}return activate(function(){var _findMyself;return(_findMyself=findMyself()).find.apply(_findMyself,findArgs)})};var classes=new Proxy({},{get:function get(target,name){return find('.'+name)}});var overrides={find:find,classes:classes};return new Proxy(findMyself(),{get:function get(target,key){return overrides[key]||findMyself()[key]}})}function removeUndefined(obj){var result=_extends({},obj);for(var key in result){if(result[key]===undefined)delete result[key]}return result}
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2

package.json
{
"name": "active-enzyme",
"version": "1.2.1",
"version": "2.0.0",
"description": "Boilerplate-free Enzyme testing",

@@ -5,0 +5,0 @@ "main": "build.js",

55

README.md

@@ -46,3 +46,3 @@ # active-enzyme [![Build Status](https://travis-ci.org/pelotom/active-enzyme.svg?branch=master)](https://travis-ci.org/pelotom/active-enzyme)

switchLanguage
} = shallow(<Greeting name={name} />).lookup()
} = shallow(<Greeting name={name} />).classes

@@ -61,61 +61,18 @@ expect(greeting.text()).toBe(`Hello, ${name}!`)

1. Enzyme wrapper objects acquire a special `lookup()` method which allows you to query based on a class names. This is nice because it allows you to use ES2015 destructuring syntax as above to select all the rendered elements you care about for a given test.
1. Enzyme wrapper objects acquire a special `classes` property which allows you to query based on a class names. This is nice because it allows you to use ES2015 destructuring syntax as above to select all the rendered elements you care about for a given test.
1. The first feature wouldn't be very useful with regular Enzyme if your test triggers re-renders of the element tree (as is happening here implicitly as a result of the `'click'` events), because the `greeting` and `switchLanguage` wrappers are normally immutable. This library instead returns *active* wrappers, which change in response to the element tree being re-rendered.
You may provide a custom mapping object to the `lookup()` method which shows which properties should be mapped to which `className`s:
Since the most common usage pattern is that you have a bunch of tests all testing the same component, there is a `makeRenderer()` utility which allows the individual tests to simply vary the props they're going to render it with:
```javascript
const {
foo
} = shallow(<Greeting name={name} />).lookup({
foo: 'greeting'
})
```
this would be equivalent to
```javascript
const foo = shallow(<Greeting name={name} />).find('.greeting')
```
This might not seem all that useful at first blush, but it is intended to support [CSS Modules](https://github.com/css-modules/css-modules), where `className`s get munged so as to be globally unique. Going back to our `Greeting` component test example, if we were using CSS Modules it would look something like this:
```javascript
import React from 'react'
import { shallow } from 'active-enzyme'
import { makeRenderer } from 'active-enzyme'
import Greeting from './Greeting'
import styles from './Greeting.css'
it('greets in multiple languages', () => {
const name = 'John'
const render = makeRenderer(Greeting)
const {
greeting,
switchLanguage
} = shallow(<Greeting name={name} />).lookup(styles)
expect(greeting.text()).toBe(`Hello, ${name}!`)
switchLanguage.simulate('click')
expect(greeting.text()).toBe(`Bonjour, ${name}!`)
switchLanguage.simulate('click')
expect(greeting.text()).toBe(`Hello, ${name}!`)
})
```
Finally, since the most common usage pattern is that you have a bunch of tests all testing the same component, possibly with associated CSS Modules, there is a `makeAnalyzer()` utility which allows the individual tests to simply vary the props they're going to pass to it when rendering:
```javascript
import React from 'react'
import { makeAnalyzer } from 'active-enzyme'
import Greeting from './Greeting'
import styles from './Greeting.css'
const analyze = makeAnalyzer(Greeting, styles)
it('greets in multiple languages', () => {
const name = 'John'
const { greeting, switchLanguage } = analyze({ name })
const { greeting, switchLanguage } = render({ name }).classes

@@ -122,0 +79,0 @@ expect(greeting.text()).toBe(`Hello, ${name}!`)

36

src/active-enzyme.js

@@ -24,28 +24,22 @@ import { createElement } from 'react'

export function makeAnalyzer(component, styles, opts = {}) {
const transform = (transform => props => removeUndefined(transform(props)))(opts.transform || (props => props))
const render = opts.type || shallow
return (props = {}) => render(createElement(component, transform(props))).lookup(styles)
export function makeRenderer(component, {
method = shallow,
transform = props => props,
enzymeOptions
} = {}) {
const doTransform = props => removeUndefined(transform(props))
return (props = {}) => method(createElement(component, doTransform(props)), enzymeOptions)
}
function activate(findMyself) {
const find = (...findArgs) => activate(() => findMyself().find(...findArgs))
const classes = new Proxy({}, {
get(target, name) {
return find(`.${name}`)
}
})
const overrides = { find, classes }
return new Proxy(findMyself(), {
get(target, key) {
const find = (...findArgs) => activate(() => findMyself().find(...findArgs))
switch (key) {
case 'find':
return find
case 'lookup':
return classMap => new Proxy({}, {
get(target, name) {
if (classMap)
name = classMap[name].split(' ')[0]
return find(`.${name}`)
}
})
default:
return findMyself()[key]
}
return overrides[key] || findMyself()[key]
}

@@ -52,0 +46,0 @@ })

32

src/active-enzyme.test.js
import React, { Component } from 'react'
import * as renderers from './active-enzyme'
import * as activeEnzyme from './active-enzyme'
describe('shallow wrapper', () => {
it('is active', () => {
['shallow', 'mount'].forEach(method => {
['shallow', 'mount'].forEach(methodName => {
const render = activeEnzyme.makeRenderer(Greeting, { method: activeEnzyme[methodName] })
const name = 'John'

@@ -13,3 +15,3 @@

switchLanguage
} = renderers[method](<Greeting name={name} />).lookup()
} = render({ name }).classes

@@ -27,26 +29,2 @@ expect(greeting.text()).toBe(`Hello, ${name}!`)

describe('selector mapping', () => {
it('works', () => {
['shallow', 'mount'].forEach(method => {
const name = 'John'
const {
greetingRenamed,
switchLanguageRenamed
} = renderers[method](<Greeting name={name} />).lookup({
greetingRenamed: 'greeting',
switchLanguageRenamed: 'switchLanguage',
})
expect(greetingRenamed.text()).toBe(`Hello, ${name}!`)
switchLanguageRenamed.simulate('click')
expect(greetingRenamed.text()).toBe(`Bonjour, ${name}!`)
switchLanguageRenamed.simulate('click')
expect(greetingRenamed.text()).toBe(`Hello, ${name}!`)
})
})
})
// Test component

@@ -53,0 +31,0 @@

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