jest-fail-on-console-client

This is an example of how to use the shouldFailOnAssert option of jest-fail-on-console

Set up jest-fail-on-console

1. Installing it in package.json
2. Adding a jest.config.js file that sets setupFilesAfterEnv
3. Adding a jest.setup.js file that calls failOnConsole({ shouldFailOnAssert: true })

Write the application code

Look at index.js. Note that we have two methods, assertSuccess and assertFailure. When we call assertSuccess, that doesn't fail the test because 1 === 1, but when we call assertFailure, the test is failed. This is because console.assert doesn't log in assertSuccess, but it does in assertFailure.

Run the tests

One of the tests, test client › asserts failure, fails to show you how errors are display.