cherrypick/packages/backend/jest.config.cjs

/*
* For a detailed explanation regarding each configuration property and type check, visit:
* https://jestjs.io/docs/en/configuration.html
*/

module.exports = {
	// All imported modules in your tests should be mocked automatically
	// automock: false,

	// Stop running tests after `n` failures
	// bail: 0,

	// The directory where Jest should store its cached dependency information
	// cacheDirectory: "C:\\Users\\ai\\AppData\\Local\\Temp\\jest",

	// Automatically clear mock calls and instances between every test
	// clearMocks: false,

	// Indicates whether the coverage information should be collected while executing the test
	// collectCoverage: false,

	// An array of glob patterns indicating a set of files for which coverage information should be collected
	collectCoverageFrom: ['src/**/*.ts', '!src/**/*.test.ts'],

	// The directory where Jest should output its coverage files
	coverageDirectory: "coverage",

	// An array of regexp pattern strings used to skip coverage collection
	// coveragePathIgnorePatterns: [
	//   "\\\\node_modules\\\\"
	// ],

	// Indicates which provider should be used to instrument code for coverage
	coverageProvider: "v8",

	// A list of reporter names that Jest uses when writing coverage reports
	// coverageReporters: [
	//   "json",
	//   "text",
	//   "lcov",
	//   "clover"
	// ],

	// An object that configures minimum threshold enforcement for coverage results
	// coverageThreshold: undefined,

	// A path to a custom dependency extractor
	// dependencyExtractor: undefined,

	// Make calling deprecated APIs throw helpful error messages
	// errorOnDeprecated: false,

	// Force coverage collection from ignored files using an array of glob patterns
	// forceCoverageMatch: [],

	// A path to a module which exports an async function that is triggered once before all test suites
	// globalSetup: undefined,

	// A path to a module which exports an async function that is triggered once after all test suites
	// globalTeardown: undefined,

	// A set of global variables that need to be available in all test environments
	globals: {
	},

	// The maximum amount of workers used to run your tests. Can be specified as % or a number. E.g. maxWorkers: 10% will use 10% of your CPU amount + 1 as the maximum worker number. maxWorkers: 2 will use a maximum of 2 workers.
	// maxWorkers: "50%",

	// An array of directory names to be searched recursively up from the requiring module's location
	// moduleDirectories: [
	//   "node_modules"
	// ],

	// An array of file extensions your modules use
	// moduleFileExtensions: [
	//   "js",
	//   "json",
	//   "jsx",
	//   "ts",
	//   "tsx",
	//   "node"
	// ],

	// A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
	moduleNameMapper: {
		// Do not resolve .wasm.js to .wasm by the rule below
		'^(.+)\\.wasm\\.js$': '$1.wasm.js',
		// SWC converts @/foo/bar.js to `../../src/foo/bar.js`, and then this rule
		// converts it again to `../../src/foo/bar` which then can be resolved to
		// `.ts` files.
		// See https://github.com/swc-project/jest/issues/64#issuecomment-1029753225
		// TODO: Use `--allowImportingTsExtensions` on TypeScript 5.0 so that we can
		// directly import `.ts` files without this hack.
		'^((?:\\.{1,2}|[A-Z:])*/.*)\\.js$': '$1',
	},

	// An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
	// modulePathIgnorePatterns: [],

	// Activates notifications for test results
	// notify: false,

	// An enum that specifies notification mode. Requires { notify: true }
	// notifyMode: "failure-change",

	// A preset that is used as a base for Jest's configuration
	//preset: "ts-jest/presets/js-with-ts-esm",

	// Run tests from one or more projects
	// projects: undefined,

	// Use this configuration option to add custom reporters to Jest
	// reporters: undefined,

	// Automatically reset mock state between every test
	// resetMocks: false,

	// Reset the module registry before running each individual test
	// resetModules: false,

	// A path to a custom resolver
	// resolver: './jest-resolver.cjs',

	// Automatically restore mock state between every test
	restoreMocks: true,

	// The root directory that Jest should scan for tests and modules within
	// rootDir: undefined,

	// A list of paths to directories that Jest should use to search for files in
	roots: [
		"<rootDir>"
	],

	// Allows you to use a custom runner instead of Jest's default test runner
	// runner: "jest-runner",

	// The paths to modules that run some code to configure or set up the testing environment before each test
	// setupFiles: [],

	// A list of paths to modules that run some code to configure or set up the testing framework before each test
	// setupFilesAfterEnv: [],

	// The number of seconds after which a test is considered as slow and reported as such in the results.
	// slowTestThreshold: 5,

	// A list of paths to snapshot serializer modules Jest should use for snapshot testing
	// snapshotSerializers: [],

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

	// Options that will be passed to the testEnvironment
	// testEnvironmentOptions: {},

	// Adds a location field to test results
	// testLocationInResults: false,

	// The glob patterns Jest uses to detect test files
	testMatch: [
		"<rootDir>/test/unit/**/*.ts",
		"<rootDir>/src/**/*.test.ts",
		"<rootDir>/test/e2e/**/*.ts",
	],

	// An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
	// testPathIgnorePatterns: [
	//   "\\\\node_modules\\\\"
	// ],

	// The regexp pattern or array of patterns that Jest uses to detect test files
	// testRegex: [],

	// This option allows the use of a custom results processor
	// testResultsProcessor: undefined,

	// This option allows use of a custom test runner
	// testRunner: "jasmine2",

	// This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
	// testURL: "http://localhost",

	// Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
	// timers: "real",

	// A map from regular expressions to paths to transformers
	transform: {
		"^.+\\.(t|j)sx?$": ["@swc/jest"],
	},

	// An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
	// transformIgnorePatterns: [
	//   "\\\\node_modules\\\\",
	//   "\\.pnp\\.[^\\\\]+$"
	// ],

	// An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
	// unmockedModulePathPatterns: undefined,

	// Indicates whether each individual test should be reported during the run
	// verbose: undefined,

	// An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
	// watchPathIgnorePatterns: [],

	// Whether to use watchman for file crawling
	// watchman: true,

	extensionsToTreatAsEsm: ['.ts'],

	testTimeout: 60000,

	// Let Jest kill the test worker whenever it grows too much
	// (It seems there's a known memory leak issue in Node.js' vm.Script used by Jest)
	// https://github.com/facebook/jest/issues/11956
	maxWorkers: 1, // Make it use worker (that can be killed and restarted)
	logHeapUsage: true, // To debug when out-of-memory happens on CI
	workerIdleMemoryLimit: '1GiB', // Limit the worker to 1GB (GitHub Workflows dies at 2GB)

	maxConcurrency: 32,
};