# My Favorite Unit Test

I use this one to find out if the test environment is set up correctly.

I use this one to find out if the test environment is set up correctly:

describe('the universe', () => {
it('should exist', () => {
expect(true).toBe(true);
});
});


It’s also a software engineers version of Descartes’ “Cogito ergo sum”: The test passed, therefore the universe must exist.