jest.config.ts

/**
 * Copyright 2020 Inrupt Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
 * Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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import type { Config } from "jest";

type ArrayElement<MyArray> = MyArray extends Array<infer T> ? T : never;

const baseConfig: ArrayElement<NonNullable<Config["projects"]>> = {
  preset: "ts-jest",
  testRegex: "src/.*\\.test\\.ts$",
  setupFilesAfterEnv: ["<rootDir>/jest.setup.ts"],
  clearMocks: true,
  injectGlobals: false,
  modulePathIgnorePatterns: ["node_modules/"],
};

export default {
  collectCoverage: true,
  coverageReporters: process.env.CI ? ["text", "lcov"] : ["text"],
  coverageThreshold: {
    global: {
      branches: 100,
      functions: 100,
      lines: 100,
      statements: 100,
    },
  },
  projects: [
    {
      ...baseConfig,
      displayName: "browser",
      testEnvironment: "jsdom",
      testPathIgnorePatterns: ["e2e", "node.test.ts"],
    },
    {
      ...baseConfig,
      displayName: "node",
      testEnvironment: "node",
      testPathIgnorePatterns: ["e2e", "browser.test.ts"],
    },
    {
      ...baseConfig,
      testEnvironment: "node",
      displayName: "e2e-node",
      testRegex: "e2e/node/.*.test.ts",
      setupFiles: ["<rootDir>/e2e/node/jest.setup.ts"],
      // don't load the polyfills
      setupFilesAfterEnv: [],
      slowTestThreshold: 30,
    },
  ],
} as Config;