update jest config

Author: EmilianoSanchez

jest.config.js

@@ -3,6 +3,12 @@ module.exports = {
 
   testEnvironment: 'jsdom',
 
+  globals: {
+    'ts-jest': {
+      tsconfig: 'tsconfig.jest.json',
+    }
+  },
+
   // Test files are .js, .jsx, .ts and .tsx files inside of __tests__ folders and with a suffix of .test or .spec
   testMatch: ['**/__tests__/**/?(*.)+(spec|test).[jt]s?(x)'],
 

tsconfig.jest.json

@@ -0,0 +1,22 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "jsx": "react",
+    "lib": [
+      "es2015",
+      "dom"
+    ],
+    "strict": false,
+    "sourceMap": true,
+    "esModuleInterop": true,
+    "strictNullChecks": false,
+    "resolveJsonModule": true
+  },
+  "include": [
+    "src/**/*"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}