dashboard/test/utils/object.js

52 lines
1.5 KiB
JavaScript

import test from 'ava';
import { get, getter, clone, isEmpty } from '@/utils/object';
const obj = { foo: 'bar', baz: { bat: 42, 'with.dots': 43 } };
test('get', (t) => {
t.deepEqual( get(obj, 'foo'), obj.foo, 'Gets single keys');
t.deepEqual( get(obj, 'baz.bat'), obj.baz.bat, 'Gets nested keys');
t.deepEqual( get(obj, "baz.'with.dots'"), obj.baz['with.dots'], 'Even with dots in them');
t.deepEqual( get(obj, 'baz.nonsense'), undefined, 'Returns undefined for nonexistent leaf ');
t.deepEqual( get(obj, 'non.sense'), undefined, 'Returns undefined for nonexistent parent ');
});
test('getter', (t) => {
let g = getter('foo');
t.deepEqual( typeof g, 'function', 'Returns a function');
t.deepEqual( g(obj), obj.foo, 'Gets single keys');
g = getter('baz.bat');
t.deepEqual( g(obj), obj.baz.bat, 'Gets nested keys');
g = getter('baz."with.dots"');
t.deepEqual( g(obj), obj.baz['with.dots'], 'Gets dotted keys');
});
test('clone', (t) => {
const c = clone(obj);
t.not(c, obj, 'Returns a different object');
t.deepEqual(c, obj, 'With the same value');
});
test('isEmpty', (t) => {
t.true(isEmpty({}), 'Says empty things are empty');
t.false(isEmpty({ foo: 42 }), 'Says not-empty things are not empty');
const x = {};
Object.defineProperty(x, 'foo', { value: 'bar' });
t.true(isEmpty(x), 'Ignores non-enumerable properties');
Object.defineProperty(x, 'baz', { value: 'bar', enumerable: true });
t.false(isEmpty(x), 'Sees enumerable properties');
});