chore: set up jest config

Author: badasswp

jest.config.js

@@ -0,0 +1,16 @@
+const baseConfig = require('@wordpress/scripts/config/jest-unit.config.js');
+
+module.exports = {
+  ...baseConfig,
+  preset: 'ts-jest',
+  testEnvironment: 'jsdom',
+  setupFilesAfterEnv: [
+    './jest.setup.js'
+  ],
+  transform: {
+    '^.+\\.jsx?$': 'babel-jest',
+  },
+  moduleNameMapper: {
+    'uuid': require.resolve('uuid'),
+  },
+};

jest.setup.js

@@ -0,0 +1,3 @@
+import '@testing-library/jest-dom';
+import '@testing-library/jest-dom/extend-expect.js';
+import '@wordpress/jest-preset-default/scripts/setup-globals';