84 lines
1.9 KiB
JavaScript
84 lines
1.9 KiB
JavaScript
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'use strict';
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/*global describe:true, it: true */
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var assert = require('assert');
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var undefsafe = require('../lib/undefsafe');
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describe('undefsafe', function () {
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it('should handle primatives', function () {
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var r = undefsafe(1, '');
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assert(r === 1, 'undefsafe is 1: ' + r);
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});
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it('should handle empty objects', function () {
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var value = {};
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var r;
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r = undefsafe(value, '');
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assert(r === value, 'value is value' + r);
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r = undefsafe(value, 'foo');
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assert(r === undefined, 'value.foo is undefined: ' + r);
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r = undefsafe(value, 'foo.bar');
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assert(r === undefined, 'value.foo.bar is undefined: ' + r);
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});
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it('should handle null properties', function () {
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var value = {
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a: {
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b: null,
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},
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};
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var r;
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r = undefsafe(value, 'a.b');
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assert(r === null, 'value.a.b is null: ' + r);
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r = undefsafe(value, 'a.b.c');
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assert(r === undefined, 'value.a.b.c is undefined: ' + r);
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});
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it('should find deep object properties', function () {
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var value = {
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a: {
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b: {
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c: {
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d: 10,
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e: {
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f: 20,
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},
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g: true,
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h: false,
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i: undefined,
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j: null,
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},
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},
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},
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};
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var r;
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r = undefsafe(value, 'a');
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assert(r === value.a, 'value.a: ' + r + ' ' + value.a);
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r = undefsafe(value, 'a.foo');
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assert(r === undefined, 'value.a.foo is undefined: ' + r);
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r = undefsafe(value, 'a.b.c.d');
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assert(r === 10, 'value.a.b.c.d = 10');
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r = undefsafe(value, 'a.b.c.e');
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assert(r === value.a.b.c.e, 'value.a.b.c.e = <object>');
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r = undefsafe(value, 'a.b.c.g');
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assert(r === true, 'bool(true)');
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r = undefsafe(value, 'a.b.c.h');
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assert(r === false, 'bool(false)');
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r = undefsafe(value, 'a.b.c.i');
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assert(r === undefined, 'undefined');
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r = undefsafe(value, 'a.b.c.j');
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assert(r === null, 'null');
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});
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});
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