jest.config.js

const nextJest = require("next/jest");

const createJestConfig = nextJest({
  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
  dir: "./",
});

// Add any custom config to be passed to Jest
const customJestConfig = {
  setupFilesAfterEnv: ["./jest.setup.js"],
  moduleNameMapper: {
    // Handle module aliases
    "^@/components/(.*)$": "<rootDir>/components/$1",
    "^@/app/(.*)$": "<rootDir>/app/$1",
  },
  testMatch: ["**/__tests__/**/*.test.js"],
  transform: {
    // Use babel-jest to transpile tests with the next/babel preset
    "^.+\\.(js|jsx|ts|tsx)$": ["babel-jest", { presets: ["next/babel"] }],
  },
};

// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
module.exports = createJestConfig(customJestConfig);