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monjack
2025-06-20 18:01:48 +08:00
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var test = require('tape');
var stringify = require('../');
test('custom comparison function', function (t) {
t.plan(1);
var obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };
var s = stringify(obj, function (a, b) {
return a.key < b.key ? 1 : -1;
});
t.equal(s, '{"c":8,"b":[{"z":6,"y":5,"x":4},7],"a":3}');
});

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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}}');
});

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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"]}');
});

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var test = require('tape');
var stringify = require('../');
test('space parameter', function (t) {
t.plan(1);
var obj = { one: 1, two: 2 };
t.equal(stringify(obj, {space: ' '}), ''
+ '{\n'
+ ' "one": 1,\n'
+ ' "two": 2\n'
+ '}'
);
});
test('space parameter (with tabs)', function (t) {
t.plan(1);
var obj = { one: 1, two: 2 };
t.equal(stringify(obj, {space: '\t'}), ''
+ '{\n'
+ '\t"one": 1,\n'
+ '\t"two": 2\n'
+ '}'
);
});
test('space parameter (with a number)', function (t) {
t.plan(1);
var obj = { one: 1, two: 2 };
t.equal(stringify(obj, {space: 3}), ''
+ '{\n'
+ ' "one": 1,\n'
+ ' "two": 2\n'
+ '}'
);
});
test('space parameter (nested objects)', function (t) {
t.plan(1);
var obj = { one: 1, two: { b: 4, a: [2,3] } };
t.equal(stringify(obj, {space: ' '}), ''
+ '{\n'
+ ' "one": 1,\n'
+ ' "two": {\n'
+ ' "a": [\n'
+ ' 2,\n'
+ ' 3\n'
+ ' ],\n'
+ ' "b": 4\n'
+ ' }\n'
+ '}'
);
});
test('space parameter (same as native)', function (t) {
t.plan(1);
// for this test, properties need to be in alphabetical order
var obj = { one: 1, two: { a: [2,3], b: 4 } };
t.equal(stringify(obj, {space: ' '}), JSON.stringify(obj, null, ' '));
});

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var test = require('tape');
var stringify = require('../');
test('simple object', function (t) {
t.plan(1);
var obj = { c: 6, b: [4,5], a: 3, z: null };
t.equal(stringify(obj), '{"a":3,"b":[4,5],"c":6,"z":null}');
});
test('object with undefined', function (t) {
t.plan(1);
var obj = { a: 3, z: undefined };
t.equal(stringify(obj), '{"a":3}');
});
test('array with undefined', function (t) {
t.plan(1);
var obj = [4, undefined, 6];
t.equal(stringify(obj), '[4,null,6]');
});
test('object with empty string', function (t) {
t.plan(1);
var obj = { a: 3, z: '' };
t.equal(stringify(obj), '{"a":3,"z":""}');
});
test('array with empty string', function (t) {
t.plan(1);
var obj = [4, '', 6];
t.equal(stringify(obj), '[4,"",6]');
});

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var test = require('tape');
var stringify = require('../');
test('toJSON function', function (t) {
t.plan(1);
var obj = { one: 1, two: 2, toJSON: function() { return { one: 1 }; } };
t.equal(stringify(obj), '{"one":1}' );
});
test('toJSON returns string', function (t) {
t.plan(1);
var obj = { one: 1, two: 2, toJSON: function() { return 'one'; } };
t.equal(stringify(obj), '"one"');
});
test('toJSON returns array', function (t) {
t.plan(1);
var obj = { one: 1, two: 2, toJSON: function() { return ['one']; } };
t.equal(stringify(obj), '["one"]');
});