adding jest

Author: Ayush Krishnatray

.gitignore

@@ -8,3 +8,5 @@ npm-debug.log
 # Mac OS X
 .DS_Store
 dump.rdb
+
+coverage

.huskyrc

@@ -1,5 +1,6 @@
 {
  "hooks": {
  "pre-commit": "npm preCommit",
+ "pre-push": "npm prePush"
  }
 }

config/CSSStub.js

@@ -0,0 +1 @@
+module.exports = {};

config/enzyme.config.js

@@ -0,0 +1,5 @@
+/** Used in jest.config.js */
+import { configure } from 'enzyme';
+import Adapter from 'enzyme-adapter-react-16';
+
+configure({ adapter: new Adapter() });

jest.config.js

@@ -0,0 +1,53 @@
+// For a detailed explanation regarding each configuration property, visit:
+// https://jestjs.io/docs/en/configuration.html
+
+module.exports = {
+ // Automatically clear mock calls and instances between every test
+ clearMocks: true,
+
+ // An array of glob patterns indicating a set of files for which coverage information should be collected
+ collectCoverageFrom: [
+ 'src/containers/**/*.{js,jsx}',
+ 'src/components/**/*.{js,jsx}'
+ ],
+
+ // The directory where Jest should output its coverage files
+ coverageDirectory: 'coverage',
+
+ coverageThreshold: {
+ global: {
+ branches: 70,
+ functions: 70,
+ lines: 70,
+ statements: 70
+ }
+ },
+
+ // An array of file extensions your modules use
+ moduleFileExtensions: ['js', 'json', 'jsx'],
+
+ moduleNameMapper: {
+ '\\.(css|scss|sass)$': '<rootDir>/config/CSSStub.js'
+ },
+
+ // The paths to modules that run some code to configure or set up the testing environment before each test
+ setupFiles: ['<rootDir>/config/enzyme.config.js'],
+
+ // The test environment that will be used for testing
+ testEnvironment: 'jsdom',
+
+ // The glob patterns Jest uses to detect test files
+ testMatch: ['**/__tests__/**/*.js?(x)', '**/?(*.)+(spec|test).js?(x)'],
+
+ // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
+ testPathIgnorePatterns: ['\\\\node_modules\\\\'],
+
+ // This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
+ testURL: 'http://localhost',
+
+ // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
+ transformIgnorePatterns: ['<rootDir>/node_modules/'],
+
+ // Indicates whether each individual test should be reported during the run
+ verbose: false
+};