adding unit test for rendering home page

jest.config.js

@@ -0,0 +1,15 @@
+const nextJest = require('next/jest');
+
+const createJestConfig = nextJest({
+  dir: './',
+});
+
+const customJestConfig = {
+  testEnvironment: 'jest-environment-jsdom',
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1',
+  },
+  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
+};
+
+module.exports = createJestConfig(customJestConfig);