The Liar

Definition:

Testing asynchronous code becomes tricky as it is based on a future value that you might receive or might not.

Also Known As:

Evergreen Tests, Success Against All Odds

Code Example:

test('the data is peanut butter', () => {
  function callback(data) {
    expect(data).toBe('peanut butter');
  }

  fetchData(callback);
});

References:

Quality attributes

:octicon:`file-code;1em` - Code Example
:octicon:`comment-discussion;1em` - Cause and Effect
:octicon:`graph;1em` - Frequency
:octicon:`sync;1em` - Refactoring