/*!
* object.omit <https://github.com/jonschlinkert/object.omit>
*
* Copyright (c) 2014-2015, Jon Schlinkert.
* Licensed under the MIT License.
*/
'use strict';
require('mocha');
var assert = require('assert');
var omit = require('./');
describe('.omit()', function() {
it('should omit a key from the object', function() {
assert.deepEqual(omit({a: 'a', b: 'b', c: 'c'}, 'a'), { b: 'b', c: 'c' });
assert.deepEqual(omit({aaa: 'a', bbb: 'b', ccc: 'c'}, 'aaa'), { bbb: 'b', ccc: 'c' });
});
it('should omit an array of keys from the object', function() {
assert.deepEqual(omit({a: 'a', b: 'b', c: 'c'}, ['a', 'c']), { b: 'b' });
});
it('should return the object if no keys are given', function() {
assert.deepEqual(omit({a: 'a', b: 'b', c: 'c'}), {a: 'a', b: 'b', c: 'c'});
});
it('should return a new object when no keys are given', function() {
var obj = {a: 'a', b: 'b', c: 'c'};
assert(omit(obj) !== obj);
});
it('should take a filter function as the last argument', function() {
var foo = omit({a: 'a', b: 'b', c: 'c'}, function(val, key) {
return key === 'a';
});
var bar = omit({a: 'a', b: 'b', c: function() {}}, function(val, key) {
return typeof val !== 'function';
});
assert.deepEqual(foo, {a: 'a'});
assert.deepEqual(bar, {a: 'a', b: 'b'});
});
it('should copy properties to a new object', function() {
var foo = {a: 'a', b: 'b', c: 'c', d: 'd'};
var bar = omit(foo, ['d'], function(val, key) {
return key === 'a' || key === 'd';
});
assert.deepEqual(foo, {a: 'a', b: 'b', c: 'c', d: 'd'});
assert.deepEqual(bar, {a: 'a'});
});
it('should return an empty object if the first arg is not an object', function() {
assert.deepEqual(omit(null, {a: 'a', b: 'b', c: 'c'}), {});
});
it('should return an empty object if no object is specified', function() {
assert.deepEqual(omit(), {});
});
});