jest.config.js

//const config = require('@polkadot/dev/config/jest.cjs');

// Copyright 2017-2022 @polkadot/dev authors & contributors
// SPDX-License-Identifier: Apache-2.0

const fs = require("fs");
const { defaults } = require("jest-config");

module.exports = {
    moduleFileExtensions: [...defaults.moduleFileExtensions, "ts", "tsx"],
    modulePathIgnorePatterns: [
        "<rootDir>/build",
        "<rootDir>/build-tsc-cjs",
        "<rootDir>/build-tsc-ems",
        "<rootDir>/build-tsc-js",
    ].concat(
        fs
            .readdirSync("packages")
            .filter((p) => fs.statSync(`packages/${p}`).isDirectory())
            .map((p) => `<rootDir>/packages/${p}/build`)
    ),
    // See https://jestjs.io/docs/configuration#extraglobals-arraystring
    sandboxInjectedGlobals: ["Math"],
    testMatch: [
        "**/__tests__/**/*.[jt]s?(x)",
        "**/?(*.)+(spec|test).[jt]s?(x)",
    ],
    preset: "ts-jest",
    testEnvironment: "node",
    transform: {
        "node_modules/variables/.+\\.(j|t)sx?$": [
            "ts-jest",
            { tsconfig: "./tsconfig.jest.json", useESM: true },
        ],
        "\\.[jt]sx?$": [
            "ts-jest",
            { tsconfig: "./tsconfig.jest.json", useESM: true },
        ],
        ".ts": ["ts-jest", { tsconfig: "./tsconfig.jest.json", useESM: true }],
    },
    transformIgnorePatterns: ["node_modules/(?!variables/.*)"],
    extensionsToTreatAsEsm: [".ts"],

    moduleNameMapper: {
        "@encointer/node-api(.*)$": "<rootDir>/packages/node-api/src/$1",
        "@encointer/worker-api(.*)$": "<rootDir>/packages/worker-api/src/$1",
        "@encointer/util(.*)$": "<rootDir>/packages/util/src/$1",
        "@encointer/types(.*)$": "<rootDir>/packages/types/src/$1",
    },
    resolver: "jest-ts-webcompat-resolver",
};