Function notThrows

  • notThrows(callback, message?): void

  • check if function throws an error

    Parameters

    • callback: ThrowsCallback
    • Optionalmessage: string

    Returns void

    Example

    throws(() => { throw new Error('foo'); });

    Example

    throws(() => { throw new TypeError('foo'); }, TypeError);
  • notThrows(callback, expectedError, message?): void

  • check if function throws an error matching the constructor

    Parameters

    • callback: ThrowsCallback
    • expectedError: Constructor<any>
    • Optionalmessage: string

    Returns void

    Example

    throws(() => { throw new TypeError('foo'); }, TypeError);
  • notThrows(callback, expectedError, message?): void

  • check if function throws an error matching the regex

    Parameters

    • callback: ThrowsCallback
    • expectedError: RegExp
    • Optionalmessage: string

    Returns void

    Example

    throws(() => { throw new Error('foo'); });

    Example

    throws(() => { throw new TypeError('foo'); }, /foo/);
  • notThrows(callback, expectedError, message?): void

  • check if function throws an error matching the predicate function

    Parameters

    • callback: ThrowsCallback
    • expectedError: ErrorPredicate
    • Optionalmessage: string

    Returns void

    Example

    throws(() => { throw new TypeError('foo'); }, (error) => error.message === 'foo');

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