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bitwarden-browser/libs/shared/jest.config.angular.js
Matt Gibson 490e6c322d
Improve jest performance (#9496)
Utilizing resources based on thread availability improves performance vs fixed threading.

The linked issue for CI crashes has not been closed. Once this is solves, `runInBand` may improves performance in CI.
2024-06-04 10:40:41 -04:00

36 lines
1.2 KiB
JavaScript

/* eslint-env node */
/* eslint-disable @typescript-eslint/no-var-requires */
const { defaultTransformerOptions } = require("jest-preset-angular/presets");
/** @type {import('jest').Config} */
module.exports = {
testMatch: ["**/+(*.)+(spec).+(ts)"],
testPathIgnorePatterns: [
"/node_modules/", // default value
".*.type.spec.ts", // ignore type tests (which are checked at compile time and not run by jest)
],
// Improves on-demand performance, for watches prefer 25%, overridable by setting --maxWorkers
maxWorkers: "50%",
transform: {
"^.+\\.(ts|js|mjs|svg)$": [
"jest-preset-angular",
{
...defaultTransformerOptions,
// Jest does not use tsconfig.spec.json by default
tsconfig: "<rootDir>/tsconfig.spec.json",
// Further workaround for memory leak, recommended here:
// https://github.com/kulshekhar/ts-jest/issues/1967#issuecomment-697494014
// Makes tests run faster and reduces size/rate of leak, but loses typechecking on test code
// See https://bitwarden.atlassian.net/browse/EC-497 for more info
isolatedModules: true,
astTransformers: {
before: ["<rootDir>/../../libs/shared/es2020-transformer.ts"],
},
},
],
},
};