@invisible/assert

    1.0.2 • Public • Published

    @invisible/assert

    CircleCI

    Assertion library to allow one to throw custom errors.

    @invisible/assert uses ES2015 Proxies to intercept calls to assert. All methods of assert are available, and it is compatible with both Node.js's standard assertion library and the one on npm.

    Motivation

    To allow assert to throw custom errors.

    Example

    assert encapsulates Custom Errors under an AssertionError, which sucks

    const assert = require('assert')
    assert(false, Error('yohoo')
     
    { AssertionError: Error: yohoo
        at Object.<anonymous> (/tmp/a/index.js:2:1)
      name: 'AssertionError',
      actual: false,
      expected: true,
      operator: '==',
      message: 
       Error: yohoo
           at Object.<anonymous> (/tmp/a/index.js:2:15)
      generatedMessage: false }

    Stack-trace trimmed for readability.

    @invisible/assert throws Custom Errors properly, which is nice

    const assert = require('assert')
    assert(false, Error('yohoo'))
    Error: yohoo
        at Object.<anonymous> (/tmp/a/index.js:2:16)

    Stack-trace trimmed for readability.

    Installation

    npm install @invisible/assert

    NB: The npm library assert is not a dependency in package.json in order to allow one to use Node.js's standard assert library.

    Keywords

    Install

    npm i @invisible/assert

    DownloadsWeekly Downloads

    4

    Version

    1.0.2

    License

    MIT

    Last publish

    Collaborators

    • nadeeminv
    • gtaltemann
    • elseagle
    • keenahn
    • invisible-bot
    • rodrigo4244
    • pieterventer
    • scottdownes
    • zacksingh
    • el5091