feat: remove enzyme support (#72)

BREAKING CHANGE: enzyme adapter and serializer must now be configured independently if needed

README.md

@@ -64,13 +64,9 @@ Extends [amex-jest-preset](https://github.com/americanexpress/amex-jest-preset)
 
 - [moduleNameMapper](http://facebook.github.io/jest/docs/en/configuration.html#modulenamemapper-object-string-string) tells Jest to treat CSS modules as identity objects
 
-- [setupFilesAfterEnv](https://jestjs.io/docs/en/configuration.html#setupfilesafterenv-array) is where we setup [enzyme with enzyme-adapter-react-16](http://airbnb.io/enzyme/docs/installation/react-16.html)
-
-- [snapshotSerializers](http://facebook.github.io/jest/docs/en/configuration.html#snapshotserializers-array-string) tells Jest to use [enzyme-to-json's](https://github.com/adriantoine/enzyme-to-json) serializer
-
 ### Compatibility
 
-This package is compatible only with React 16+.
+This package is compatible only with React 17+.
 
 ## 🗝️ License
 

__tests__/__snapshots__/jest-preset.spec.js.snap

@@ -32,9 +32,6 @@ exports[`a jest configuration is exported 1`] = `
     ".npm",
   ],
   "setupFilesAfterEnv": Any<Array>,
-  "snapshotSerializers": [
-    "enzyme-to-json/serializer",
-  ],
   "testEnvironment": "jsdom",
   "testResultsProcessor": Any<String>,
 }

jest-preset.js

@@ -16,7 +16,6 @@ const basePreset = require('amex-jest-preset');
 const reactSpecificPreset = {
   testEnvironment: 'jsdom',
   setupFilesAfterEnv: [require.resolve('./jest-setup')],
-  snapshotSerializers: ['enzyme-to-json/serializer'],
   moduleNameMapper: {
     '\\.(css|scss)$': 'identity-obj-proxy'
   },

jest-setup.js

@@ -18,8 +18,3 @@ require('whatwg-fetch');
 global.requestAnimationFrame = (callback) => {
   setTimeout(callback, 0);
 };
-
-const Enzyme = require('enzyme');
-const Adapter = require('@wojtekmaj/enzyme-adapter-react-17');
-
-Enzyme.configure({ adapter: new Adapter() });