Automattic/mongoose · error

MONGOOSE

MONGOOSE

Error message

Mongoose: looks like you're trying to test a Mongoose app with Jest's default jsdom test environment. Please make sure you read Mongoose's docs on configuring Jest to test Node.js apps: https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true to hide this warning.

What it means

Error "Mongoose: looks like you're trying to test a Mongoose app with Jest's default jsdom test environment. Please make sure you read Mongoose's docs on configuring Jest to test Node.js apps: https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true to hide this warning." thrown in Automattic/mongoose.

Source

Thrown at lib/helpers/printJestWarning.js:7

'use strict';

const utils = require('../utils');

if (typeof jest !== 'undefined' && !process.env.SUPPRESS_JEST_WARNINGS) {
  if (typeof window !== 'undefined') {
    utils.warn('Mongoose: looks like you\'re trying to test a Mongoose app ' +
      'with Jest\'s default jsdom test environment. Please make sure you read ' +
      'Mongoose\'s docs on configuring Jest to test Node.js apps: ' +
      'https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true ' +
      'to hide this warning.');
  }

  if (typeof setTimeout.clock?.Date === 'function') {
    utils.warn('Mongoose: looks like you\'re trying to test a Mongoose app ' +
      'with Jest\'s mock timers enabled. Please make sure you read ' +
      'Mongoose\'s docs on configuring Jest to test Node.js apps: ' +
      'https://mongoosejs.com/docs/jest.html. Set the SUPPRESS_JEST_WARNINGS to true ' +
      'to hide this warning.');
  }
}

View on GitHub (pinned to 49cdab0136)

When it happens

Trigger: Thrown at lib/helpers/printJestWarning.js:7 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Automattic/mongoose@49cdab0136 (2026-08-21). Data as JSON: /api/errors/8067eb094ebf5f77. Report an issue: GitHub.