Use Jest for testing

Author: mjackson

.gitignore

@@ -2,6 +2,4 @@ es
 node_modules
 umd
 /*.js
-!karma.conf.js
-!tests.webpack.js
 !webpack.config.js

karma.conf.js

@@ -1,13 +1,13 @@
 {
   "parser": "babel-eslint",
-  "env": {
-    "browser": true,
-    "node": true
-  },
   "plugins": [
     "import",
     "react"
   ],
+  "env": {
+    "browser": true,
+    "node": true
+  },
   "extends": [
     "eslint:recommended",
     "plugin:import/errors",

modules/.eslintrc

@@ -0,0 +1,8 @@
+{
+  "plugins": [
+    "jest"
+  ],
+  "env": {
+    "jest/globals": true
+  }
+}

modules/__tests__/.eslintrc

@@ -1,13 +1,10 @@
-/*eslint-env mocha*/
 /*eslint react/prop-types: 0*/
 import React from 'react'
 import { render } from 'react-dom'
-import expect from 'expect'
 import { EventEmitter } from 'events'
-import { Subscriber, Broadcast } from '../index'
+import { Broadcast, Subscriber } from '../index'
 
 it('works', (done) => {
-
   const steps = []
   const execNextStep = () => steps.shift()()
   const div = document.createElement('div')
@@ -16,11 +13,12 @@ it('works', (done) => {
   const emitter = new EventEmitter()
 
   // A component has some state it wants to make available to descendants
-  // 1. We create our Emitter and Subscriber components
-  const CheeseEmitter = ({ cheese, children }) =>
+  // 1. We create our Broadcast and Subscriber components
+  const CheeseBroadcast = ({ cheese, children }) =>
     <Broadcast channel="cheese" value={cheese} children={children}/>
+
   const CheeseSubscriber = ({ children }) =>
-    <Subscriber channel="cheese">{(value) => children(value)}</Subscriber>
+    <Subscriber channel="cheese" children={children}/>
 
   class ComponentWithStateForDescendants extends React.Component {
     constructor() {
@@ -36,13 +34,13 @@ it('works', (done) => {
     componentDidUpdate = execNextStep
 
     render() {
-      // 2. render the Emitter in the component w/ state and pass
+      // 2. render the Broadcast in the component w/ state and pass
       //    it the value we want accessible through context as a prop
-      //    by the same name as when the Emitter was created
+      //    by the same name as when the Broadcast was created
       return (
-        <CheeseEmitter cheese={this.state.cheese}>
+        <CheeseBroadcast cheese={this.state.cheese}>
           {this.props.children}
-        </CheeseEmitter>
+        </CheeseBroadcast>
       )
     }
   }
@@ -60,7 +58,7 @@ it('works', (done) => {
     }
   )
 
-  // 3. Render a <Subscriber> that calls back when the Emitter
+  // 3. Render a <Subscriber> that calls back when the Broadcast
   //    gets a new value in its prop
   render((
     <ComponentWithStateForDescendants>
@@ -73,4 +71,3 @@ it('works', (done) => {
     </ComponentWithStateForDescendants>
   ), div)
 })
-

modules/__tests__/integration-test.js

@@ -18,7 +18,7 @@
     "prepublish": "node ./tools/build.js",
     "release": "node ./tools/release.js",
     "lint": "eslint modules",
-    "test": "karma start --single-run"
+    "test": "jest"
   },
   "peerDependencies": {
     "react": ">=15"
@@ -38,18 +38,12 @@
     "babel-preset-stage-1": "^6.5.0",
     "eslint": "^3.3.1",
     "eslint-plugin-import": "^2.0.0",
+    "eslint-plugin-jest": "^20.0.3",
     "eslint-plugin-react": "^6.1.2",
     "expect": "^1.20.1",
     "gzip-size": "^3.0.0",
     "in-publish": "^2.0.0",
-    "karma": "^1.2.0",
-    "karma-browserstack-launcher": "^1.0.1",
-    "karma-chrome-launcher": "^2.0.0",
-    "karma-mocha": "^1.0.1",
-    "karma-mocha-reporter": "^2.0.4",
-    "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^2.0.1",
-    "mocha": "^3.0.2",
+    "jest": "^20.0.4",
     "pretty-bytes": "^4.0.0",
     "react": "^15.3.0",
     "react-dom": "^15.3.0",