fix: flaky test for wait (testing-library#131) (testing-library#134)

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

**What**:

Fixes flaky test for `wait` (testing-library#131)

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

**Why**:

Random test failures prevent builds from shipping.

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

**How**:

Use jest [timer mocks](https://jestjs.io/docs/en/timer-mocks).

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**Checklist**:

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

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- [ ] Documentation N/A
- [x] Tests
- [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 -->

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Author: TaylorBriggs

.all-contributorsrc

@@ -374,6 +374,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "TaylorBriggs",
+      "name": "Taylor Briggs",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/1335519?v=4",
+      "profile": "https://taylor-briggs.com",
+      "contributions": [
+        "test"
+      ]
     }
   ]
 }

.size-snapshot.json

@@ -1,7 +1,7 @@
 {
   "dist/dom-testing-library.umd.js": {
-    "bundled": 146354,
-    "minified": 53637,
-    "gzipped": 15842
+    "bundled": 146393,
+    "minified": 53662,
+    "gzipped": 15855
   }
 }

README.md

@@ -16,7 +16,7 @@
 [![downloads][downloads-badge]][npmtrends]
 [![MIT License][license-badge]][license]
 
-[![All Contributors](https://img.shields.io/badge/all_contributors-37-orange.svg?style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-38-orange.svg?style=flat-square)](#contributors)
 [![PRs Welcome][prs-badge]][prs]
 [![Code of Conduct][coc-badge]][coc]
 
@@ -1062,7 +1062,7 @@ 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://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") |
 
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 

src/__tests__/wait.js

@@ -12,14 +12,12 @@ test('it waits for the data to be loaded', async () => {
 })
 
 test('can just be used for a next tick thing', async () => {
+  jest.useFakeTimers()
   const spy = jest.fn()
   Promise.resolve().then(spy)
   expect(spy).toHaveBeenCalledTimes(0) // promises are always async
-  const before = Date.now()
   await wait() // wait for next tick
-  const after = Date.now()
-  // if it's greater than 50 then `wait` used a timeout
-  // but it should have resolved sooner. It really should be 0
-  expect(after - before).not.toBeGreaterThan(60)
+  jest.advanceTimersByTime(60)
   expect(spy).toHaveBeenCalledTimes(1)
+  jest.clearAllTimers()
 })