jest.config.ts

/**
 * For a detailed explanation regarding each configuration property, visit:
 * https://jestjs.io/docs/configuration
 */

import type { Config } from "jest";
import nextJest from "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: "./",
});

const config: Config = {
  // Indicates which provider should be used to instrument code for coverage
  coverageProvider: "v8",

  // The test environment that will be used for testing
  testEnvironment: "jsdom",

  // Add more setup options before each test is run
  setupFilesAfterEnv: ["<rootDir>/jest.setup.ts"],

  moduleNameMapper: {
    "@/(.*)$": "<rootDir>/$1",
  },

  coveragePathIgnorePatterns: ["index.ts", "index.js"],

  collectCoverageFrom: [
    "app/**/*.{js,jsx,ts,tsx}",
    "!app/**/page.{js,jsx,ts,tsx}",
    "!app/**/layout.{js,jsx,ts,tsx}",
    "components/**/*.{js,jsx,ts,tsx}",
    "helpers/**/*.{js,jsx,ts,tsx}",
    "hooks/**/*.{js,jsx,ts,tsx}",
    // We don't test type definitions.
    "!**/*.d.ts",
  ],

  coverageThreshold: {
    global: {
      statements: 40,
      branches: 30,
      functions: 30,
      lines: 40,
    },
  },
};

export default createJestConfig(config);