expect-renum

expect-renum is an extension for expect that lets you write better assertions for Enum or Immutable data in javascript.

Installation

Using npm:

$ npm install expect expect-renum --save-dev

Then with a module bundler like webpack, use as you would anything else:

// using an ES6 transpiler, like babel
import expect from 'expect';
import expectRenum from 'expect-renum';
 
expect.extend(expectRenum);
 
// not using an ES6 transpiler
var expect = require('expect');
var expectRenum = require('expect-renum');
 
expect.extend(expectRenum);

Assertions

// ✔ === success (passed the test)
// ✘ === failure (throw exception)

toHaveEnumKey

expect(enum).toHaveEnumKey(key, [message])

Asserts the given enum object has an attribute with the given key.

expect(renum('TRUE', 'FALSE')).toHaveEnumKey('TRUE') // ✔
expect(renum('TRUE', 'FALSE')).toHaveEnumKey('MAYBE') // ✘

toNotHaveEnumKey

expect(enum).toNotHaveEnumKey(key, [message])

Asserts the given enum object has not an attribute with the given key.

expect(renum('TRUE', 'FALSE')).toNotHaveEnumKey('MAYBE') // ✔
expect(renum('TRUE', 'FALSE')).toNotHaveEnumKey('TRUE') // ✘

toHaveEnumKeys

expect(enum).toHaveEnumKeys(keys)

Asserts the given enum object has all given keys attributes.

expect(renum('TRUE', 'FALSE')).toHaveEnumKeys(['TRUE']) // ✔
expect(renum('TRUE', 'FALSE')).toHaveEnumKeys(['TRUE', 'FALSE']) // ✔
expect(renum('TRUE', 'FALSE')).toHaveEnumKeys(['MAYBE']) // ✘
expect(renum('TRUE', 'FALSE')).toHaveEnumKeys(['TRUE', 'FALSE', 'MAYBE']) // ✘

toNotHaveEnumKeys

expect(enum).toNotHaveEnumKeys(keys)

Asserts the given enum object has not any given keys attributes.

expect(renum('TRUE', 'FALSE')).toNotHaveEnumKeys(['MAYBE']) // ✔
expect(renum('TRUE', 'FALSE')).toNotHaveEnumKeys(['MAYBE', 'MAYBE_NOT']) // ✔
expect(renum('TRUE', 'FALSE')).toNotHaveEnumKeys(['TRUE']) // ✘
expect(renum('TRUE', 'FALSE')).toNotHaveEnumKeys(['TRUE', 'FALSE']) // ✘
expect(renum('TRUE', 'FALSE')).toNotHaveEnumKeys(['TRUE', 'FALSE', 'MAYBE']) // ✘

toHaveEnumPair

expect(enum).toHaveEnumPair(pair, [message])

Asserts the given enum object has an attribute with the given pair[0] key pointing to given pair[1] value.

expect(renum('TRUE', 'FALSE')).toHaveEnumPair(['TRUE', 'TRUE']) // ✔
expect(renum('TRUE', 'FALSE')).toHaveEnumPair(['MAYBE', 'MAYBE']) // ✘

toNotHaveEnumPair

expect(enum).toNotHaveEnumPair(pair, [message])

Asserts the given enum object has not an attribute with the given pair[0] key pointing to given pair[1] value.

expect(renum('TRUE', 'FALSE')).toNotHaveEnumPair(['MAYBE', 'MAYBE']) // ✔
expect(renum('TRUE', 'FALSE')).toNotHaveEnumPair(['TRUE', 1]) // ✔
expect(renum('TRUE', 'FALSE')).toNotHaveEnumPair([1, 'TRUE']) // ✔
expect(renum('TRUE', 'FALSE')).toNotHaveEnumPair(['TRUE', 'TRUE']) // ✘

toBeEditable

expect(obj).toBeEditable()

Asserts the given obj object to be editable.

expect({TRUE: 'TRUE', FALSE: 'FALSE'}).toBeEditable() // ✔
expect(renum('TRUE', 'FALSE')).toBeEditable() // ✘

toNotBeEditable

expect(enum).toNotBeEditable()

Asserts the given enum object to not be editable.

expect(renum('TRUE', 'FALSE')).toNotBeEditable() // ✔
expect({TRUE: 'TRUE', FALSE: 'FALSE'}).toNotBeEditable() // ✘

toHaveProp

expect(obj).toHaveProp(key)

Asserts the given obj object has a property with the given key.

expect({TRUE: 1, FALSE: 0}).toHaveProp('TRUE') // ✔
expect({TRUE: 1, FALSE: 0}).toHaveProp('MAYBE') // ✘

toNotHaveProp

expect(obj).toNotHaveProp(key)

Asserts the given obj object has not a property with the given key.

expect({TRUE: 1, FALSE: 0}).toNotHaveProp('MAYBE') // ✔
expect({TRUE: 1, FALSE: 0}).toNotHaveProp('TRUE') // ✘

toBeIn

expect(key).toBeIn(obj)

Asserts the given key string is in the given obj object.

expect('TRUE').toBeIn({TRUE: 1, FALSE: 0}) // ✔
expect('MAYBE').toBeIn({TRUE: 1, FALSE: 0}) // ✘

toNotBeIn

expect(key).toNotBeIn(obj)

Asserts the given key string is not in the given obj object.

expect('MAYBE').toNotBeIn({TRUE: 1, FALSE: 0}) // ✔
expect('TRUE').toNotBeIn({TRUE: 1, FALSE: 0}) // ✘

toBeFrozen

expect(obj).toBeFrozen()

Asserts the given obj object is frozen.

expect(renum([['TRUE', 1], ['FALSE', 0]])).toBeFrozen() // ✔
expect(Object.freeze({TRUE: 1, FALSE: 0})).toBeFrozen() // ✔
expect({TRUE: 1, FALSE: 0}).toBeFrozen() // ✘

toNotBeFrozen

expect(obj).toNotBeFrozen()

Asserts the given obj object is not frozen.

expect({TRUE: 1, FALSE: 0}).toNotBeFrozen() // ✔
expect(renum([['TRUE', 1], ['FALSE', 0]])).toNotBeFrozen() // ✘
expect(Object.freeze({TRUE: 1, FALSE: 0})).toNotBeFrozen() // ✘