fix: unofficially support node 6 (testing-library#151)

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<!-- What changes are being made? (What feature/bug is being fixed here?) -->

**What**:

*Unofficially* support node 6 by changing `Object.entries` to `Object.keys`

<!-- Why are these changes necessary? -->

**Why**:

I opened a [PR](jestjs/jest#7346) to jest that adds an example for testing with `react-testing-library`.

jest runs it's test suite against node 6 (including the example I added), which is failing because of the call to `Object.entries`.

Switching to `Object.keys` should make the test pass so the PR can be merged 😸 

See tweet from @kentcdodds: https://twitter.com/kentcdodds/status/1060735136172466176

<!-- How were these changes implemented? -->

**How**:

With code 😸 

<!-- Have you done all of these things?  -->

**Checklist**:

<!-- add "N/A" to the end of each line that's irrelevant to your changes -->

<!-- to check an item, place an "x" in the box like so: "- [x] Documentation" -->

- [ ] Documentation N/A
- [ ] Tests N/A (I ran them... although not in node 6 😅 because the tests use `async`)
- [x] Ready to be merged <!-- In your opinion, is this ready to be merged as soon as it's reviewed? -->
- [x] Added myself to contributors table <!-- this is optional, see the contributing guidelines for instructions -->

<!-- feel free to add additional comments -->

Author: terrencewwong

.all-contributorsrc

@@ -401,6 +401,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "terrencewwong",
+      "name": "Terrence Wong",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/5312329?v=4",
+      "profile": "http://terrencewwong.com",
+      "contributions": [
+        "code"
+      ]
     }
   ]
 }

.size-snapshot.json

@@ -1,30 +1,30 @@
 {
   "dist/dom-testing-library.cjs.js": {
-    "bundled": 137666,
-    "minified": 59811,
-    "gzipped": 16554
+    "bundled": 137646,
+    "minified": 59799,
+    "gzipped": 16547
   },
   "dist/dom-testing-library.umd.min.js": {
-    "bundled": 146462,
-    "minified": 53705,
-    "gzipped": 15876
+    "bundled": 146438,
+    "minified": 53692,
+    "gzipped": 15877
   },
   "dist/dom-testing-library.umd.js": {
-    "bundled": 146462,
-    "minified": 53705,
-    "gzipped": 15876
+    "bundled": 146438,
+    "minified": 53692,
+    "gzipped": 15877
   },
   "dist/dom-testing-library.esm.js": {
-    "bundled": 136297,
-    "minified": 58558,
-    "gzipped": 16321,
+    "bundled": 136277,
+    "minified": 58546,
+    "gzipped": 16314,
     "treeshaked": {
       "rollup": {
-        "code": 41502,
+        "code": 41487,
         "import_statements": 0
       },
       "webpack": {
-        "code": 44070
+        "code": 44061
       }
     }
   }

README.md

@@ -16,7 +16,7 @@
 [![downloads][downloads-badge]][npmtrends]
 [![MIT License][license-badge]][license]
 
-[![All Contributors](https://img.shields.io/badge/all_contributors-40-orange.svg?style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-41-orange.svg?style=flat-square)](#contributors)
 [![PRs Welcome][prs-badge]][prs]
 [![Code of Conduct][coc-badge]][coc]
 
@@ -92,6 +92,7 @@ when a real user uses it.
   - [`fireEvent`](#fireevent)
   - [`getNodeText`](#getnodetext)
 - [Custom Jest Matchers](#custom-jest-matchers)
+- [Custom Queries](#custom-queries)
   - [Using other assertion libraries](#using-other-assertion-libraries)
 - [`TextMatch`](#textmatch)
   - [Precision](#precision)
@@ -1105,7 +1106,8 @@ Thanks goes to these people ([emoji key][emojis]):
 | [<img src="https://avatars3.githubusercontent.com/u/725236?v=4" width="100px;"/><br /><sub><b>Alex Cook</b></sub>](https://github.com/alecook)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=alecook "Documentation") [💡](#example-alecook "Examples") | [<img src="https://avatars3.githubusercontent.com/u/10348212?v=4" width="100px;"/><br /><sub><b>Daniel Cook</b></sub>](https://github.com/dfcook)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=dfcook "Code") [📖](https://github.com/kentcdodds/dom-testing-library/commits?author=dfcook "Documentation") [⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=dfcook "Tests") | [<img src="https://avatars2.githubusercontent.com/u/21194045?s=400&v=4" width="100px;"/><br /><sub><b>Thomas Chia</b></sub>](https://github.com/thchia)<br />[🐛](https://github.com/kentcdodds/dom-testing-library/issues?q=author%3Athchia "Bug reports") [💻](https://github.com/kentcdodds/dom-testing-library/commits?author=thchia "Code") | [<img src="https://avatars1.githubusercontent.com/u/28659384?v=4" width="100px;"/><br /><sub><b>Tim Deschryver</b></sub>](https://github.com/tdeschryver)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=tdeschryver "Code") [⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=tdeschryver "Tests") | [<img src="https://avatars3.githubusercontent.com/u/1571667?v=4" width="100px;"/><br /><sub><b>Alex Krolick</b></sub>](https://alexkrolick.com)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=alexkrolick "Code") | [<img src="https://avatars2.githubusercontent.com/u/2224291?v=4" width="100px;"/><br /><sub><b>Maddi Joyce</b></sub>](http://www.maddijoyce.com)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=maddijoyce "Code") | [<img src="https://avatars1.githubusercontent.com/u/25429764?v=4" width="100px;"/><br /><sub><b>Peter Kamps</b></sub>](https://github.com/npeterkamps)<br />[🐛](https://github.com/kentcdodds/dom-testing-library/issues?q=author%3Anpeterkamps "Bug reports") [💻](https://github.com/kentcdodds/dom-testing-library/commits?author=npeterkamps "Code") [⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=npeterkamps "Tests") |
 | [<img src="https://avatars2.githubusercontent.com/u/21689428?v=4" width="100px;"/><br /><sub><b>Jonathan Stoye</b></sub>](http://jonathanstoye.de)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=JonathanStoye "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/4126644?v=4" width="100px;"/><br /><sub><b>Sanghyeon Lee</b></sub>](https://github.com/yongdamsh)<br />[💡](#example-yongdamsh "Examples") | [<img src="https://avatars3.githubusercontent.com/u/8015514?v=4" width="100px;"/><br /><sub><b>Justice Mba </b></sub>](https://github.com/Dajust)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=Dajust "Code") [📖](https://github.com/kentcdodds/dom-testing-library/commits?author=Dajust "Documentation") [🤔](#ideas-Dajust "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/340761?v=4" width="100px;"/><br /><sub><b>Wayne Crouch</b></sub>](https://github.com/wgcrouch)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=wgcrouch "Code") | [<img src="https://avatars1.githubusercontent.com/u/4996462?v=4" width="100px;"/><br /><sub><b>Ben Elliott</b></sub>](http://benjaminelliott.co.uk)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=benelliott "Code") | [<img src="https://avatars3.githubusercontent.com/u/577921?v=4" width="100px;"/><br /><sub><b>Ruben Costa</b></sub>](http://nuances.co)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=rubencosta "Code") | [<img src="https://avatars2.githubusercontent.com/u/4982001?v=4" width="100px;"/><br /><sub><b>Robert Smith</b></sub>](http://rbrtsmith.com/)<br />[🐛](https://github.com/kentcdodds/dom-testing-library/issues?q=author%3Arbrtsmith "Bug reports") [🤔](#ideas-rbrtsmith "Ideas, Planning, & Feedback") [📖](https://github.com/kentcdodds/dom-testing-library/commits?author=rbrtsmith "Documentation") |
 | [<img src="https://avatars3.githubusercontent.com/u/881986?v=4" width="100px;"/><br /><sub><b>dadamssg</b></sub>](https://github.com/dadamssg)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=dadamssg "Code") | [<img src="https://avatars1.githubusercontent.com/u/186971?v=4" width="100px;"/><br /><sub><b>Neil Kistner</b></sub>](https://neilkistner.com/)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=wyze "Code") | [<img src="https://avatars3.githubusercontent.com/u/1448597?v=4" width="100px;"/><br /><sub><b>Ben Chauvette</b></sub>](http://bdchauvette.net/)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=bdchauvette "Code") | [<img src="https://avatars2.githubusercontent.com/u/777527?v=4" width="100px;"/><br /><sub><b>Jeff Baumgardt</b></sub>](https://github.com/JeffBaumgardt)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=JeffBaumgardt "Code") [📖](https://github.com/kentcdodds/dom-testing-library/commits?author=JeffBaumgardt "Documentation") | [<img src="https://avatars0.githubusercontent.com/u/4658208?v=4" width="100px;"/><br /><sub><b>Matan Kushner</b></sub>](http://matchai.me)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=matchai "Code") [📖](https://github.com/kentcdodds/dom-testing-library/commits?author=matchai "Documentation") [🤔](#ideas-matchai "Ideas, Planning, & Feedback") [⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=matchai "Tests") | [<img src="https://avatars2.githubusercontent.com/u/5779538?v=4" width="100px;"/><br /><sub><b>Alex Wendte</b></sub>](http://www.wendtedesigns.com/)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=themostcolm "Code") [📖](https://github.com/kentcdodds/dom-testing-library/commits?author=themostcolm "Documentation") [⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=themostcolm "Tests") | [<img src="https://avatars0.githubusercontent.com/u/2196208?v=4" width="100px;"/><br /><sub><b>Tamas Fodor</b></sub>](https://github.com/ruffle1986)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=ruffle1986 "Documentation") |
-| [<img src="https://avatars3.githubusercontent.com/u/14793495?v=4" width="100px;"/><br /><sub><b>Benjamin Eckardt</b></sub>](https://github.com/BenjaminEckardt)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=BenjaminEckardt "Code") | [<img src="https://avatars3.githubusercontent.com/u/205752?v=4" width="100px;"/><br /><sub><b>Ryan Campbell</b></sub>](https://github.com/campbellr)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=campbellr "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/1335519?v=4" width="100px;"/><br /><sub><b>Taylor Briggs</b></sub>](https://taylor-briggs.com)<br />[⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=TaylorBriggs "Tests") | [<img src="https://avatars2.githubusercontent.com/u/132233?v=4" width="100px;"/><br /><sub><b>John Gozde</b></sub>](https://github.com/jgoz)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=jgoz "Code") | [<img src="https://avatars2.githubusercontent.com/u/3382565?v=4" width="100px;"/><br /><sub><b>C. T. Lin</b></sub>](https://github.com/chentsulin)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=chentsulin "Documentation") |
+| [<img src="https://avatars3.githubusercontent.com/u/14793495?v=4" width="100px;"/><br /><sub><b>Benjamin Eckardt</b></sub>](https://github.com/BenjaminEckardt)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=BenjaminEckardt "Code") | [<img src="https://avatars3.githubusercontent.com/u/205752?v=4" width="100px;"/><br /><sub><b>Ryan Campbell</b></sub>](https://github.com/campbellr)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=campbellr "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/1335519?v=4" width="100px;"/><br /><sub><b>Taylor Briggs</b></sub>](https://taylor-briggs.com)<br />[⚠️](https://github.com/kentcdodds/dom-testing-library/commits?author=TaylorBriggs "Tests") | [<img src="https://avatars2.githubusercontent.com/u/132233?v=4" width="100px;"/><br /><sub><b>John Gozde</b></sub>](https://github.com/jgoz)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=jgoz "Code") | [<img src="https://avatars2.githubusercontent.com/u/3382565?v=4" width="100px;"/><br /><sub><b>C. T. Lin</b></sub>](https://github.com/chentsulin)<br />[📖](https://github.com/kentcdodds/dom-testing-library/commits?author=chentsulin "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/5312329?v=4" width="100px;"/><br /><sub><b>Terrence Wong</b></sub>](http://terrencewwong.com)<br />[💻](https://github.com/kentcdodds/dom-testing-library/commits?author=terrencewwong "Code") |
+
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors][all-contributors] specification.

src/events.js

@@ -299,7 +299,8 @@ function fireEvent(element, event) {
   return element.dispatchEvent(event)
 }
 
-Object.entries(eventMap).forEach(([key, {EventType, defaultInit}]) => {
+Object.keys(eventMap).forEach(key => {
+  const {EventType, defaultInit} = eventMap[key]
   const eventName = key.toLowerCase()
 
   fireEvent[key] = (node, init) => {
@@ -344,7 +345,8 @@ function setNativeValue(element, value) {
   }
 }
 
-Object.entries(eventAliasMap).forEach(([aliasKey, key]) => {
+Object.keys(eventAliasMap).forEach(aliasKey => {
+  const key = eventAliasMap[aliasKey]
   fireEvent[aliasKey] = (...args) => fireEvent[key](...args)
 })
 

src/get-queries-for-element.js

@@ -10,7 +10,8 @@ import * as defaultQueries from './queries'
  * @returns {FuncMap} returns object of functions bound to container
  */
 function getQueriesForElement(element, queries = defaultQueries) {
-  return Object.entries(queries).reduce((helpers, [key, fn]) => {
+  return Object.keys(queries).reduce((helpers, key) => {
+    const fn = queries[key]
     helpers[key] = fn.bind(null, element)
     return helpers
   }, {})