Chore: Setup jest

Author: thomasthiebaud

config/jest.config.js

@@ -0,0 +1,16 @@
+const path = require('path');
+
+module.exports = {
+  collectCoverage: true,
+  moduleFileExtensions: ['ts', 'tsx', 'js'],
+  transform: {
+    "^.+\\.tsx?$": "ts-jest"
+  },
+  testMatch: [
+    '**/?(*.)+(spec|test).(ts|js)'
+  ],
+  rootDir: path.resolve(__dirname, '..'),
+  moduleNameMapper: {
+    '\\.(css|less|sass|scss)$': '<rootDir>/tests/styleMock.js'
+  }
+}