assert-op

assertions with javascript comparison operators

• Why • Example • Features • License •

Why

This originated as an attempt to have assertions that are less verbose because assert.notDeepStrictEqual and the likes are ugly.

Example

import t from 'assert-op'

t('mytest', a => {
  a('==', 2, 2)
  a`==`(2, 2, 'this alternate form is also possible')
  a`!==`(3, 4, 'should be unequal')
  a`<`(1, 2)
  a`!`(null, 'should be falsy')
  a`!{===}`([], 'str', 'should be notDeepStrictEqual')
  a('{==}', [2], 2, 'should be deepEqual')
  a('!==', 3, 4)
  a('{===}', new Set([1,2]), new Set([1,2]))
  a('{===}', new Map([[1,2]]), new Map([[1,2]]))
})

Features

• Javascript Comparison Operators (==, !==, ===, !===, <, <=, >, >=)
• Negation (!, !!)
• Other symbols for nested object
  • {==}: deepEqual
  • !{==}: notDeepEqual
  • {===}: strictDeepEqual
  • !{===}: notStrictDeepEqual
• throws and !throws for assert.throws
• Support ES2015 Set and Map

License

MIT © Hugo Villeneuve