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test.js
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test.js
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/*!
* filter-object <https://github.com/jonschlinkert/filter-object>
*
* Copyright (c) 2014-2017, Jon Schlinkert.
* Licensed under the MIT License.
*/
'use strict';
require('mocha');
var assert = require('assert');
var filter = require('./');
describe('filter', function() {
it('should use a filter function:', function() {
var res = filter({a: 'a', b: 'b', c: 'c'}, function(val) {
return val === 'b';
});
assert.deepEqual(res, {b: 'b'});
});
it('should filter keys using the given glob patterns', function() {
assert.deepEqual(filter({a: 'a', b: 'b', c: 'c'}, '*'), {a: 'a', b: 'b', c: 'c'});
assert.deepEqual(filter({a: 'a', b: 'b', c: 'c'}, 'b'), {b: 'b'});
assert.deepEqual(filter({foo: 'a', bar: 'b', baz: 'c'}, 'b*'), {bar: 'b', baz: 'c'});
});
it('should exclude keys that match negation patterns:', function() {
assert.deepEqual(filter({a: 'a', b: 'b', c: 'c'}, ['*', '!a']), {b: 'b', c: 'c'});
assert.deepEqual(filter({foo: 'a', bar: 'b', baz: 'c'}, ['*', '!b*']), {foo: 'a'});
});
it('should filter keys using brace expansion', function() {
assert.deepEqual(filter({a: 'a', b: 'b', c: 'c'}, '{b,c}'), {b: 'b', c: 'c'});
});
it('should return the entire object if no pattern is given:', function() {
assert.deepEqual(filter({a: 'a', b: 'b', c: 'c'}), {a: 'a', b: 'b', c: 'c'});
});
});