replacer.js•1.75 kB
var test = require('tape');
var stringify = require('../');
test('replace root', function (t) {
t.plan(1);
var obj = { a: 1, b: 2, c: false };
var replacer = function(key, value) { return 'one'; };
t.equal(stringify(obj, { replacer: replacer }), '"one"');
});
test('replace numbers', function (t) {
t.plan(1);
var obj = { a: 1, b: 2, c: false };
var replacer = function(key, value) {
if(value === 1) return 'one';
if(value === 2) return 'two';
return value;
};
t.equal(stringify(obj, { replacer: replacer }), '{"a":"one","b":"two","c":false}');
});
test('replace with object', function (t) {
t.plan(1);
var obj = { a: 1, b: 2, c: false };
var replacer = function(key, value) {
if(key === 'b') return { d: 1 };
if(value === 1) return 'one';
return value;
};
t.equal(stringify(obj, { replacer: replacer }), '{"a":"one","b":{"d":"one"},"c":false}');
});
test('replace with undefined', function (t) {
t.plan(1);
var obj = { a: 1, b: 2, c: false };
var replacer = function(key, value) {
if(value === false) return;
return value;
};
t.equal(stringify(obj, { replacer: replacer }), '{"a":1,"b":2}');
});
test('replace with array', function (t) {
t.plan(1);
var obj = { a: 1, b: 2, c: false };
var replacer = function(key, value) {
if(key === 'b') return ['one', 'two'];
return value;
};
t.equal(stringify(obj, { replacer: replacer }), '{"a":1,"b":["one","two"],"c":false}');
});
test('replace array item', function (t) {
t.plan(1);
var obj = { a: 1, b: 2, c: [1,2] };
var replacer = function(key, value) {
if(value === 1) return 'one';
if(value === 2) return 'two';
return value;
};
t.equal(stringify(obj, { replacer: replacer }), '{"a":"one","b":"two","c":["one","two"]}');
});