Test/orr/migrate karma to jest (#379)

* feat: move to jest

* Butotn tests

* Link Tests

* Link Tests

* test: FormattedNumber

* test: Loader

* test: small changes

* ifnra: update test

* remove: karma sinon and mocha

* remove: karma sinon and mocha

* test: update coverage

* fix: testing

* fix: testing

* fix: lint

* fix: lint and stylelint

* fix: storyshoots tests

* uupdate node-sass

* remove errors

TESTING_README.md

@@ -6,22 +6,13 @@ We are using two approaches when regarding testing the first is the standard jes
 1. Jest as of our test runner and framework
 2. [React testing library](https://testing-library.com/docs/react-testing-library/intro) as our components testing library
 
-The second approach is for special use cases which require a browser (positing, observer callbacks ...)
- 1. Karma as our test runner
- 2. Mocha as our framework library
- 3. Sinon as our mocks/stubs library
- 4. [React testing library](https://testing-library.com/docs/react-testing-library/intro) as our components testing library
-
 ## React testing library
 This library forces us to test according to user behaviour and not implementation details (state keys for example) for example the library allows you to target elements according to text, aria labels, placeholders text and more. This approach ensure us that we test the component in the right way and allows us easier refactoring when needed.
 
 #### Test File
 #### Jest
 Use our plop which automatically generates the proper folder structure, each file should end with .test.js
 
-#### Karma
-The file should end with `-test.js` and should be located in a `__tests__` folder.
-
 ### React testing 101
 #### Mounting components
 In react testing library we "mount" the entire components and the tests are running against a fully rendered tree in order to simulate the most accurate user environment.

jest.config.js

@@ -31,6 +31,7 @@ module.exports = {
   // coveragePathIgnorePatterns: [
   //   "/node_modules/"
   // ],
+  coveragePathIgnorePatterns: ["node_modules/", "src/components/Icon/Icons/"],
 
   // Indicates which provider should be used to instrument code for coverage
   // coverageProvider: "babel",
@@ -73,15 +74,7 @@ module.exports = {
   // ],
 
   // An array of file extensions your modules use
-  moduleFileExtensions: [
-    "js",
-    "json",
-    "jsx",
-    "ts",
-    "tsx",
-    "node",
-    "mdx"
-  ],
+  moduleFileExtensions: ["js", "json", "jsx", "ts", "tsx", "node", "mdx"],
 
   // A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
   moduleNameMapper: {
@@ -176,14 +169,16 @@ module.exports = {
   // A map from regular expressions to paths to transformers
   transform: {
     "^.+\\.[tj]sx?$": "babel-jest",
-    "^.+\\.mdx?$": "@storybook/addon-docs/jest-transform-mdx"
+    "^.+\\.mdx?$": "@storybook/addon-docs/jest-transform-mdx",
+    "\\.(jpg|ico|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$":
+      "<rootDir>/__mocks__/fileMock.js"
   },
 
   // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
   transformIgnorePatterns: [
     "node_modules/(?!monday-ui-style)/"
     // "\\.pnp\\.[^\\/]+$"
-  ],
+  ]
 
   // An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
   // unmockedModulePathPatterns: undefined,