598 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
		
		
			
		
	
	
			598 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
|  | 'use strict'; | ||
|  | 
 | ||
|  | var test = require('tape'); | ||
|  | var qs = require('../'); | ||
|  | var utils = require('../lib/utils'); | ||
|  | var iconv = require('iconv-lite'); | ||
|  | var SaferBuffer = require('safer-buffer').Buffer; | ||
|  | 
 | ||
|  | test('stringify()', function (t) { | ||
|  |     t.test('stringifies a querystring object', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b' }), 'a=b'); | ||
|  |         st.equal(qs.stringify({ a: 1 }), 'a=1'); | ||
|  |         st.equal(qs.stringify({ a: 1, b: 2 }), 'a=1&b=2'); | ||
|  |         st.equal(qs.stringify({ a: 'A_Z' }), 'a=A_Z'); | ||
|  |         st.equal(qs.stringify({ a: '€' }), 'a=%E2%82%AC'); | ||
|  |         st.equal(qs.stringify({ a: '' }), 'a=%EE%80%80'); | ||
|  |         st.equal(qs.stringify({ a: 'א' }), 'a=%D7%90'); | ||
|  |         st.equal(qs.stringify({ a: '𐐷' }), 'a=%F0%90%90%B7'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('adds query prefix', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b' }, { addQueryPrefix: true }), '?a=b'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('with query prefix, outputs blank string given an empty object', function (st) { | ||
|  |         st.equal(qs.stringify({}, { addQueryPrefix: true }), ''); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a nested object', function (st) { | ||
|  |         st.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c'); | ||
|  |         st.equal(qs.stringify({ a: { b: { c: { d: 'e' } } } }), 'a%5Bb%5D%5Bc%5D%5Bd%5D=e'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a nested object with dots notation', function (st) { | ||
|  |         st.equal(qs.stringify({ a: { b: 'c' } }, { allowDots: true }), 'a.b=c'); | ||
|  |         st.equal(qs.stringify({ a: { b: { c: { d: 'e' } } } }, { allowDots: true }), 'a.b.c.d=e'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an array value', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'indices' }), | ||
|  |             'a%5B0%5D=b&a%5B1%5D=c&a%5B2%5D=d', | ||
|  |             'indices => indices' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: ['b', 'c', 'd'] }, { arrayFormat: 'brackets' }), | ||
|  |             'a%5B%5D=b&a%5B%5D=c&a%5B%5D=d', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: ['b', 'c', 'd'] }), | ||
|  |             'a%5B0%5D=b&a%5B1%5D=c&a%5B2%5D=d', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('omits nulls when asked', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b', c: null }, { skipNulls: true }), 'a=b'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('omits nested nulls when asked', function (st) { | ||
|  |         st.equal(qs.stringify({ a: { b: 'c', d: null } }, { skipNulls: true }), 'a%5Bb%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('omits array indices when asked', function (st) { | ||
|  |         st.equal(qs.stringify({ a: ['b', 'c', 'd'] }, { indices: false }), 'a=b&a=c&a=d'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a nested array value', function (st) { | ||
|  |         st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'indices' }), 'a%5Bb%5D%5B0%5D=c&a%5Bb%5D%5B1%5D=d'); | ||
|  |         st.equal(qs.stringify({ a: { b: ['c', 'd'] } }, { arrayFormat: 'brackets' }), 'a%5Bb%5D%5B%5D=c&a%5Bb%5D%5B%5D=d'); | ||
|  |         st.equal(qs.stringify({ a: { b: ['c', 'd'] } }), 'a%5Bb%5D%5B0%5D=c&a%5Bb%5D%5B1%5D=d'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a nested array value with dots notation', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: ['c', 'd'] } }, | ||
|  |                 { allowDots: true, encode: false, arrayFormat: 'indices' } | ||
|  |             ), | ||
|  |             'a.b[0]=c&a.b[1]=d', | ||
|  |             'indices: stringifies with dots + indices' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: ['c', 'd'] } }, | ||
|  |                 { allowDots: true, encode: false, arrayFormat: 'brackets' } | ||
|  |             ), | ||
|  |             'a.b[]=c&a.b[]=d', | ||
|  |             'brackets: stringifies with dots + brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: ['c', 'd'] } }, | ||
|  |                 { allowDots: true, encode: false } | ||
|  |             ), | ||
|  |             'a.b[0]=c&a.b[1]=d', | ||
|  |             'default: stringifies with dots + indices' | ||
|  |         ); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an object inside an array', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'indices' }), | ||
|  |             'a%5B0%5D%5Bb%5D=c', | ||
|  |             'indices => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: 'c' }] }, { arrayFormat: 'brackets' }), | ||
|  |             'a%5B%5D%5Bb%5D=c', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: 'c' }] }), | ||
|  |             'a%5B0%5D%5Bb%5D=c', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'indices' }), | ||
|  |             'a%5B0%5D%5Bb%5D%5Bc%5D%5B0%5D=1', | ||
|  |             'indices => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: { c: [1] } }] }, { arrayFormat: 'brackets' }), | ||
|  |             'a%5B%5D%5Bb%5D%5Bc%5D%5B%5D=1', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: { c: [1] } }] }), | ||
|  |             'a%5B0%5D%5Bb%5D%5Bc%5D%5B0%5D=1', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an array with mixed objects and primitives', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encode: false, arrayFormat: 'indices' }), | ||
|  |             'a[0][b]=1&a[1]=2&a[2]=3', | ||
|  |             'indices => indices' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encode: false, arrayFormat: 'brackets' }), | ||
|  |             'a[][b]=1&a[]=2&a[]=3', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: [{ b: 1 }, 2, 3] }, { encode: false }), | ||
|  |             'a[0][b]=1&a[1]=2&a[2]=3', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an object inside an array with dots notation', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: [{ b: 'c' }] }, | ||
|  |                 { allowDots: true, encode: false, arrayFormat: 'indices' } | ||
|  |             ), | ||
|  |             'a[0].b=c', | ||
|  |             'indices => indices' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: [{ b: 'c' }] }, | ||
|  |                 { allowDots: true, encode: false, arrayFormat: 'brackets' } | ||
|  |             ), | ||
|  |             'a[].b=c', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: [{ b: 'c' }] }, | ||
|  |                 { allowDots: true, encode: false } | ||
|  |             ), | ||
|  |             'a[0].b=c', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: [{ b: { c: [1] } }] }, | ||
|  |                 { allowDots: true, encode: false, arrayFormat: 'indices' } | ||
|  |             ), | ||
|  |             'a[0].b.c[0]=1', | ||
|  |             'indices => indices' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: [{ b: { c: [1] } }] }, | ||
|  |                 { allowDots: true, encode: false, arrayFormat: 'brackets' } | ||
|  |             ), | ||
|  |             'a[].b.c[]=1', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: [{ b: { c: [1] } }] }, | ||
|  |                 { allowDots: true, encode: false } | ||
|  |             ), | ||
|  |             'a[0].b.c[0]=1', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('does not omit object keys when indices = false', function (st) { | ||
|  |         st.equal(qs.stringify({ a: [{ b: 'c' }] }, { indices: false }), 'a%5Bb%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('uses indices notation for arrays when indices=true', function (st) { | ||
|  |         st.equal(qs.stringify({ a: ['b', 'c'] }, { indices: true }), 'a%5B0%5D=b&a%5B1%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('uses indices notation for arrays when no arrayFormat is specified', function (st) { | ||
|  |         st.equal(qs.stringify({ a: ['b', 'c'] }), 'a%5B0%5D=b&a%5B1%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('uses indices notation for arrays when no arrayFormat=indices', function (st) { | ||
|  |         st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'indices' }), 'a%5B0%5D=b&a%5B1%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('uses repeat notation for arrays when no arrayFormat=repeat', function (st) { | ||
|  |         st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' }), 'a=b&a=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('uses brackets notation for arrays when no arrayFormat=brackets', function (st) { | ||
|  |         st.equal(qs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'brackets' }), 'a%5B%5D=b&a%5B%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a complicated object', function (st) { | ||
|  |         st.equal(qs.stringify({ a: { b: 'c', d: 'e' } }), 'a%5Bb%5D=c&a%5Bd%5D=e'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an empty value', function (st) { | ||
|  |         st.equal(qs.stringify({ a: '' }), 'a='); | ||
|  |         st.equal(qs.stringify({ a: null }, { strictNullHandling: true }), 'a'); | ||
|  | 
 | ||
|  |         st.equal(qs.stringify({ a: '', b: '' }), 'a=&b='); | ||
|  |         st.equal(qs.stringify({ a: null, b: '' }, { strictNullHandling: true }), 'a&b='); | ||
|  | 
 | ||
|  |         st.equal(qs.stringify({ a: { b: '' } }), 'a%5Bb%5D='); | ||
|  |         st.equal(qs.stringify({ a: { b: null } }, { strictNullHandling: true }), 'a%5Bb%5D'); | ||
|  |         st.equal(qs.stringify({ a: { b: null } }, { strictNullHandling: false }), 'a%5Bb%5D='); | ||
|  | 
 | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a null object', { skip: !Object.create }, function (st) { | ||
|  |         var obj = Object.create(null); | ||
|  |         obj.a = 'b'; | ||
|  |         st.equal(qs.stringify(obj), 'a=b'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('returns an empty string for invalid input', function (st) { | ||
|  |         st.equal(qs.stringify(undefined), ''); | ||
|  |         st.equal(qs.stringify(false), ''); | ||
|  |         st.equal(qs.stringify(null), ''); | ||
|  |         st.equal(qs.stringify(''), ''); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an object with a null object as a child', { skip: !Object.create }, function (st) { | ||
|  |         var obj = { a: Object.create(null) }; | ||
|  | 
 | ||
|  |         obj.a.b = 'c'; | ||
|  |         st.equal(qs.stringify(obj), 'a%5Bb%5D=c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('drops keys with a value of undefined', function (st) { | ||
|  |         st.equal(qs.stringify({ a: undefined }), ''); | ||
|  | 
 | ||
|  |         st.equal(qs.stringify({ a: { b: undefined, c: null } }, { strictNullHandling: true }), 'a%5Bc%5D'); | ||
|  |         st.equal(qs.stringify({ a: { b: undefined, c: null } }, { strictNullHandling: false }), 'a%5Bc%5D='); | ||
|  |         st.equal(qs.stringify({ a: { b: undefined, c: '' } }), 'a%5Bc%5D='); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('url encodes values', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b c' }), 'a=b%20c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies a date', function (st) { | ||
|  |         var now = new Date(); | ||
|  |         var str = 'a=' + encodeURIComponent(now.toISOString()); | ||
|  |         st.equal(qs.stringify({ a: now }), str); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies the weird object from qs', function (st) { | ||
|  |         st.equal(qs.stringify({ 'my weird field': '~q1!2"\'w$5&7/z8)?' }), 'my%20weird%20field=~q1%212%22%27w%245%267%2Fz8%29%3F'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('skips properties that are part of the object prototype', function (st) { | ||
|  |         Object.prototype.crash = 'test'; | ||
|  |         st.equal(qs.stringify({ a: 'b' }), 'a=b'); | ||
|  |         st.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c'); | ||
|  |         delete Object.prototype.crash; | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies boolean values', function (st) { | ||
|  |         st.equal(qs.stringify({ a: true }), 'a=true'); | ||
|  |         st.equal(qs.stringify({ a: { b: true } }), 'a%5Bb%5D=true'); | ||
|  |         st.equal(qs.stringify({ b: false }), 'b=false'); | ||
|  |         st.equal(qs.stringify({ b: { c: false } }), 'b%5Bc%5D=false'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies buffer values', function (st) { | ||
|  |         st.equal(qs.stringify({ a: SaferBuffer.from('test') }), 'a=test'); | ||
|  |         st.equal(qs.stringify({ a: { b: SaferBuffer.from('test') } }), 'a%5Bb%5D=test'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('stringifies an object using an alternative delimiter', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b', c: 'd' }, { delimiter: ';' }), 'a=b;c=d'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('doesn\'t blow up when Buffer global is missing', function (st) { | ||
|  |         var tempBuffer = global.Buffer; | ||
|  |         delete global.Buffer; | ||
|  |         var result = qs.stringify({ a: 'b', c: 'd' }); | ||
|  |         global.Buffer = tempBuffer; | ||
|  |         st.equal(result, 'a=b&c=d'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('selects properties when filter=array', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b' }, { filter: ['a'] }), 'a=b'); | ||
|  |         st.equal(qs.stringify({ a: 1 }, { filter: [] }), ''); | ||
|  | 
 | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' }, | ||
|  |                 { filter: ['a', 'b', 0, 2], arrayFormat: 'indices' } | ||
|  |             ), | ||
|  |             'a%5Bb%5D%5B0%5D=1&a%5Bb%5D%5B2%5D=3', | ||
|  |             'indices => indices' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' }, | ||
|  |                 { filter: ['a', 'b', 0, 2], arrayFormat: 'brackets' } | ||
|  |             ), | ||
|  |             'a%5Bb%5D%5B%5D=1&a%5Bb%5D%5B%5D=3', | ||
|  |             'brackets => brackets' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: [1, 2, 3, 4], c: 'd' }, c: 'f' }, | ||
|  |                 { filter: ['a', 'b', 0, 2] } | ||
|  |             ), | ||
|  |             'a%5Bb%5D%5B0%5D=1&a%5Bb%5D%5B2%5D=3', | ||
|  |             'default => indices' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('supports custom representations when filter=function', function (st) { | ||
|  |         var calls = 0; | ||
|  |         var obj = { a: 'b', c: 'd', e: { f: new Date(1257894000000) } }; | ||
|  |         var filterFunc = function (prefix, value) { | ||
|  |             calls += 1; | ||
|  |             if (calls === 1) { | ||
|  |                 st.equal(prefix, '', 'prefix is empty'); | ||
|  |                 st.equal(value, obj); | ||
|  |             } else if (prefix === 'c') { | ||
|  |                 return void 0; | ||
|  |             } else if (value instanceof Date) { | ||
|  |                 st.equal(prefix, 'e[f]'); | ||
|  |                 return value.getTime(); | ||
|  |             } | ||
|  |             return value; | ||
|  |         }; | ||
|  | 
 | ||
|  |         st.equal(qs.stringify(obj, { filter: filterFunc }), 'a=b&e%5Bf%5D=1257894000000'); | ||
|  |         st.equal(calls, 5); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('can disable uri encoding', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b' }, { encode: false }), 'a=b'); | ||
|  |         st.equal(qs.stringify({ a: { b: 'c' } }, { encode: false }), 'a[b]=c'); | ||
|  |         st.equal(qs.stringify({ a: 'b', c: null }, { strictNullHandling: true, encode: false }), 'a=b&c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('can sort the keys', function (st) { | ||
|  |         var sort = function (a, b) { | ||
|  |             return a.localeCompare(b); | ||
|  |         }; | ||
|  |         st.equal(qs.stringify({ a: 'c', z: 'y', b: 'f' }, { sort: sort }), 'a=c&b=f&z=y'); | ||
|  |         st.equal(qs.stringify({ a: 'c', z: { j: 'a', i: 'b' }, b: 'f' }, { sort: sort }), 'a=c&b=f&z%5Bi%5D=b&z%5Bj%5D=a'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('can sort the keys at depth 3 or more too', function (st) { | ||
|  |         var sort = function (a, b) { | ||
|  |             return a.localeCompare(b); | ||
|  |         }; | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: 'a', z: { zj: { zjb: 'zjb', zja: 'zja' }, zi: { zib: 'zib', zia: 'zia' } }, b: 'b' }, | ||
|  |                 { sort: sort, encode: false } | ||
|  |             ), | ||
|  |             'a=a&b=b&z[zi][zia]=zia&z[zi][zib]=zib&z[zj][zja]=zja&z[zj][zjb]=zjb' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: 'a', z: { zj: { zjb: 'zjb', zja: 'zja' }, zi: { zib: 'zib', zia: 'zia' } }, b: 'b' }, | ||
|  |                 { sort: null, encode: false } | ||
|  |             ), | ||
|  |             'a=a&z[zj][zjb]=zjb&z[zj][zja]=zja&z[zi][zib]=zib&z[zi][zia]=zia&b=b' | ||
|  |         ); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('can stringify with custom encoding', function (st) { | ||
|  |         st.equal(qs.stringify({ 県: '大阪府', '': '' }, { | ||
|  |             encoder: function (str) { | ||
|  |                 if (str.length === 0) { | ||
|  |                     return ''; | ||
|  |                 } | ||
|  |                 var buf = iconv.encode(str, 'shiftjis'); | ||
|  |                 var result = []; | ||
|  |                 for (var i = 0; i < buf.length; ++i) { | ||
|  |                     result.push(buf.readUInt8(i).toString(16)); | ||
|  |                 } | ||
|  |                 return '%' + result.join('%'); | ||
|  |             } | ||
|  |         }), '%8c%a7=%91%e5%8d%e3%95%7b&='); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('receives the default encoder as a second argument', function (st) { | ||
|  |         st.plan(2); | ||
|  |         qs.stringify({ a: 1 }, { | ||
|  |             encoder: function (str, defaultEncoder) { | ||
|  |                 st.equal(defaultEncoder, utils.encode); | ||
|  |             } | ||
|  |         }); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('throws error with wrong encoder', function (st) { | ||
|  |         st['throws'](function () { | ||
|  |             qs.stringify({}, { encoder: 'string' }); | ||
|  |         }, new TypeError('Encoder has to be a function.')); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('can use custom encoder for a buffer object', { skip: typeof Buffer === 'undefined' }, function (st) { | ||
|  |         st.equal(qs.stringify({ a: SaferBuffer.from([1]) }, { | ||
|  |             encoder: function (buffer) { | ||
|  |                 if (typeof buffer === 'string') { | ||
|  |                     return buffer; | ||
|  |                 } | ||
|  |                 return String.fromCharCode(buffer.readUInt8(0) + 97); | ||
|  |             } | ||
|  |         }), 'a=b'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('serializeDate option', function (st) { | ||
|  |         var date = new Date(); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: date }), | ||
|  |             'a=' + date.toISOString().replace(/:/g, '%3A'), | ||
|  |             'default is toISOString' | ||
|  |         ); | ||
|  | 
 | ||
|  |         var mutatedDate = new Date(); | ||
|  |         mutatedDate.toISOString = function () { | ||
|  |             throw new SyntaxError(); | ||
|  |         }; | ||
|  |         st['throws'](function () { | ||
|  |             mutatedDate.toISOString(); | ||
|  |         }, SyntaxError); | ||
|  |         st.equal( | ||
|  |             qs.stringify({ a: mutatedDate }), | ||
|  |             'a=' + Date.prototype.toISOString.call(mutatedDate).replace(/:/g, '%3A'), | ||
|  |             'toISOString works even when method is not locally present' | ||
|  |         ); | ||
|  | 
 | ||
|  |         var specificDate = new Date(6); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: specificDate }, | ||
|  |                 { serializeDate: function (d) { return d.getTime() * 7; } } | ||
|  |             ), | ||
|  |             'a=42', | ||
|  |             'custom serializeDate function called' | ||
|  |         ); | ||
|  | 
 | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('RFC 1738 spaces serialization', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b c' }, { format: qs.formats.RFC1738 }), 'a=b+c'); | ||
|  |         st.equal(qs.stringify({ 'a b': 'c d' }, { format: qs.formats.RFC1738 }), 'a+b=c+d'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('RFC 3986 spaces serialization', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b c' }, { format: qs.formats.RFC3986 }), 'a=b%20c'); | ||
|  |         st.equal(qs.stringify({ 'a b': 'c d' }, { format: qs.formats.RFC3986 }), 'a%20b=c%20d'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('Backward compatibility to RFC 3986', function (st) { | ||
|  |         st.equal(qs.stringify({ a: 'b c' }), 'a=b%20c'); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('Edge cases and unknown formats', function (st) { | ||
|  |         ['UFO1234', false, 1234, null, {}, []].forEach( | ||
|  |             function (format) { | ||
|  |                 st['throws']( | ||
|  |                     function () { | ||
|  |                         qs.stringify({ a: 'b c' }, { format: format }); | ||
|  |                     }, | ||
|  |                     new TypeError('Unknown format option provided.') | ||
|  |                 ); | ||
|  |             } | ||
|  |         ); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('encodeValuesOnly', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] }, | ||
|  |                 { encodeValuesOnly: true } | ||
|  |             ), | ||
|  |             'a=b&c[0]=d&c[1]=e%3Df&f[0][0]=g&f[1][0]=h' | ||
|  |         ); | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: 'b', c: ['d', 'e'], f: [['g'], ['h']] } | ||
|  |             ), | ||
|  |             'a=b&c%5B0%5D=d&c%5B1%5D=e&f%5B0%5D%5B0%5D=g&f%5B1%5D%5B0%5D=h' | ||
|  |         ); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('encodeValuesOnly - strictNullHandling', function (st) { | ||
|  |         st.equal( | ||
|  |             qs.stringify( | ||
|  |                 { a: { b: null } }, | ||
|  |                 { encodeValuesOnly: true, strictNullHandling: true } | ||
|  |             ), | ||
|  |             'a[b]' | ||
|  |         ); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.test('does not mutate the options argument', function (st) { | ||
|  |         var options = {}; | ||
|  |         qs.stringify({}, options); | ||
|  |         st.deepEqual(options, {}); | ||
|  |         st.end(); | ||
|  |     }); | ||
|  | 
 | ||
|  |     t.end(); | ||
|  | }); |