Add moduleNameMapper to jest config

Author: tim-soft

jest.config.js

@@ -11,5 +11,9 @@ module.exports = {
   ],
   collectCoverage: true,
   coveragePathIgnorePatterns: ['/node_modules/', '/__tests__/'],
-  testMatch: ['**/__tests__/**/*.(spec|test).[jt]s?(x)']
+  testMatch: ['**/__tests__/**/*.(spec|test).[jt]s?(x)'],
+  // https://jestjs.io/docs/en/webpack.html#mocking-css-modules
+  moduleNameMapper: {
+    '\\.(scss)$': 'identity-obj-proxy'
+  }
 };

package.json

@@ -110,6 +110,7 @@
     "eslint-plugin-react": "^7.14.2",
     "eslint-plugin-react-hooks": "^1.7.0",
     "husky": "^3.0.4",
+    "identity-obj-proxy": "^3.0.0",
     "jest": "^24.9.0",
     "lint-staged": "^9.2.5",
     "prettier": "^1.18.2",

src/__tests__/DatGUI.test.js

@@ -1,6 +1,6 @@
 import React from 'react';
 import { render } from '@testing-library/react';
-import DatGUI from '../../dist/index.cjs';
+import DatGUI from '../index';
 
 test('Renders without errors', () => {
   render(<DatGUI data={{ data: {} }} onUpdate={() => null} />);

yarn.lock

@@ -3390,6 +3390,11 @@ har-validator@~5.1.0:
     ajv "^6.5.5"
     har-schema "^2.0.0"
 
+harmony-reflect@^1.4.6:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/harmony-reflect/-/harmony-reflect-1.6.1.tgz#c108d4f2bb451efef7a37861fdbdae72c9bdefa9"
+  integrity sha512-WJTeyp0JzGtHcuMsi7rw2VwtkvLa+JyfEKJCFyfcS0+CDkjQ5lHPu7zEhFZP+PDSRrEgXa5Ah0l1MbgbE41XjA==
+
 has-ansi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
@@ -3542,6 +3547,13 @@ [email protected], icss-replace-symbols@^1.1.0:
   resolved "https://registry.yarnpkg.com/icss-replace-symbols/-/icss-replace-symbols-1.1.0.tgz#06ea6f83679a7749e386cfe1fe812ae5db223ded"
   integrity sha1-Bupvg2ead0njhs/h/oEq5dsiPe0=
 
+identity-obj-proxy@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/identity-obj-proxy/-/identity-obj-proxy-3.0.0.tgz#94d2bda96084453ef36fbc5aaec37e0f79f1fc14"
+  integrity sha1-lNK9qWCERT7zb7xarsN+D3nx/BQ=
+  dependencies:
+    harmony-reflect "^1.4.6"
+
 ignore-walk@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"