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node_modules/fast-json-stable-stringify/test/nested.js 1.12 KB
2a09d1a4   liuqimichale   添加宜春 天水 宣化
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  'use strict';
  
  var test = require('tape');
  var stringify = require('../');
  
  test('nested', function (t) {
      t.plan(1);
      var obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };
      t.equal(stringify(obj), '{"a":3,"b":[{"x":4,"y":5,"z":6},7],"c":8}');
  });
  
  test('cyclic (default)', function (t) {
      t.plan(1);
      var one = { a: 1 };
      var two = { a: 2, one: one };
      one.two = two;
      try {
          stringify(one);
      } catch (ex) {
          t.equal(ex.toString(), 'TypeError: Converting circular structure to JSON');
      }
  });
  
  test('cyclic (specifically allowed)', function (t) {
      t.plan(1);
      var one = { a: 1 };
      var two = { a: 2, one: one };
      one.two = two;
      t.equal(stringify(one, {cycles:true}), '{"a":1,"two":{"a":2,"one":"__cycle__"}}');
  });
  
  test('repeated non-cyclic value', function(t) {
      t.plan(1);
      var one = { x: 1 };
      var two = { a: one, b: one };
      t.equal(stringify(two), '{"a":{"x":1},"b":{"x":1}}');
  });
  
  test('acyclic but with reused obj-property pointers', function (t) {
      t.plan(1);
      var x = { a: 1 };
      var y = { b: x, c: x };
      t.equal(stringify(y), '{"b":{"a":1},"c":{"a":1}}');
  });