forked from es-shims/es5-shim
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Tests for
JSON#parse
and JSON#stringify
.
es-shims#258 Ported the latest JSON3 test suite.
Xotic750
committed
Nov 18, 2015
1 parent
8584079
commit bdbdbbc
Showing
3 changed files
with
533 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,531 @@ | ||
/* global describe, it, expect */ | ||
|
||
/* Ported from JSON 3 Unit Test Suite | https://bestiejs.github.io/json3 */ | ||
describe('JSON', function () { | ||
// Ensures that `JSON.parse` throws an exception when parsing the given | ||
// `source` string. | ||
var parseError = function (source, message, callback) { | ||
try { | ||
expect(JSON.parse(source, callback)).toThrow(); | ||
} catch (e) { | ||
expect(e instanceof SyntaxError).toBe(true); | ||
} | ||
}; | ||
// Ensures that `JSON.parse` parses the given source string correctly. | ||
var parses = function (expected, source, message, callback) { | ||
expect(JSON.parse(source, callback)).toEqual(expected); | ||
}; | ||
// Ensures that `JSON.stringify` serializes the given object correctly. | ||
var serializes = function (expected, value, message, filter, width) { | ||
expect(JSON.stringify(value, filter, width)).toBe(expected); | ||
}; | ||
// Ensures that `JSON.stringify` throws a `TypeError` if the given object | ||
// contains a circular reference. | ||
var cyclicError = function (value) { | ||
try { | ||
expect(JSON.stringify(value)).toThrow(); | ||
} catch (e) { | ||
expect(e instanceof TypeError).toBe(true); | ||
} | ||
}; | ||
// Tests | ||
// ----- | ||
it('`parse`: Empty Source Strings', function () { | ||
parseError('', 'Empty JSON source string'); | ||
parseError('\n\n\r\n', 'Source string containing only line terminators'); | ||
parseError(' ', 'Source string containing a single space character'); | ||
parseError(' ', 'Source string containing multiple space characters'); | ||
}); | ||
it('`parse`: Whitespace', function () { | ||
// The only valid JSON whitespace characters are tabs, spaces, and line | ||
// terminators. All other Unicode category `Z` (`Zs`, `Zl`, and `Zp`) | ||
// characters are invalid (note that the `Zs` category includes the | ||
// space character). | ||
var characters = [ | ||
'{\u00a0}', | ||
'{\u1680}', | ||
'{\u180e}', | ||
'{\u2000}', | ||
'{\u2001}', | ||
'{\u2002}', | ||
'{\u2003}', | ||
'{\u2004}', | ||
'{\u2005}', | ||
'{\u2006}', | ||
'{\u2007}', | ||
'{\u2008}', | ||
'{\u2009}', | ||
'{\u200a}', | ||
'{\u202f}', | ||
'{\u205f}', | ||
'{\u3000}', | ||
'{\u2028}', | ||
'{\u2029}' | ||
]; | ||
characters.forEach(function (value) { | ||
parseError(value, 'Source string containing an invalid Unicode whitespace character'); | ||
}); | ||
parseError('{\u000b}', 'Source string containing a vertical tab'); | ||
parseError('{\u000c}', 'Source string containing a form feed'); | ||
parseError('{\ufeff}', 'Source string containing a byte-order mark'); | ||
parses({}, '{\r\n}', 'Source string containing a CRLF line ending'); | ||
parses({}, '{\n\n\r\n}', 'Source string containing multiple line terminators'); | ||
parses({}, '{\t}', 'Source string containing a tab character'); | ||
parses({}, '{ }', 'Source string containing a space character'); | ||
}); | ||
it('`parse`: Octal Values', function () { | ||
// `08` and `018` are invalid octal values. | ||
var octal = ['00', '01', '02', '03', '04', '05', '06', '07', '010', '011', '08', '018']; | ||
octal.forEach(function (value) { | ||
parseError(value, 'Octal literal'); | ||
parseError('-' + value, 'Negative octal literal'); | ||
parseError('"\\' + value + '"', 'Octal escape sequence in a string'); | ||
parseError('"\\x' + value + '"', 'Hex escape sequence in a string'); | ||
}); | ||
}); | ||
it('`parse`: Numeric Literals', function () { | ||
parses(100, '100', 'Integer'); | ||
parses(-100, '-100', 'Negative integer'); | ||
parses(10.5, '10.5', 'Float'); | ||
parses(-3.141, '-3.141', 'Negative float'); | ||
parses(0.625, '0.625', 'Decimal'); | ||
parses(-0.03125, '-0.03125', 'Negative decimal'); | ||
parses(1000, '1e3', 'Exponential'); | ||
parses(100, '1e+2', 'Positive exponential'); | ||
parses(-0.01, '-1e-2', 'Negative exponential'); | ||
parses(3125, '0.03125e+5', 'Decimalized exponential'); | ||
parses(100, '1E2', 'Case-insensitive exponential delimiter'); | ||
parseError('+1', 'Leading `+`'); | ||
parseError('1.', 'Trailing decimal point'); | ||
parseError('.1', 'Leading decimal point'); | ||
parseError('1e', 'Missing exponent'); | ||
parseError('1e-', 'Missing signed exponent'); | ||
parseError('--1', 'Leading `--`'); | ||
parseError('1-+', 'Trailing `-+`'); | ||
parseError('0xaf', 'Hex literal'); | ||
// The native `JSON.parse` implementation in IE 9 allows this syntax, but | ||
// the feature tests should detect the broken implementation. | ||
parseError('- 5', 'Invalid negative sign'); | ||
}); | ||
it('`parse`: String Literals', function () { | ||
var expected = 48; | ||
var controlCharacters = [ | ||
'\u0001', | ||
'\u0002', | ||
'\u0003', | ||
'\u0004', | ||
'\u0005', | ||
'\u0006', | ||
'\u0007', | ||
'\b', | ||
'\t', | ||
'\n', | ||
'\u000b', | ||
'\f', | ||
'\r', | ||
'\u000e', | ||
'\u000f', | ||
'\u0010', | ||
'\u0011', | ||
'\u0012', | ||
'\u0013', | ||
'\u0014', | ||
'\u0015', | ||
'\u0016', | ||
'\u0017', | ||
'\u0018', | ||
'\u0019', | ||
'\u001a', | ||
'\u001b', | ||
'\u001c', | ||
'\u001d', | ||
'\u001e', | ||
'\u001f' | ||
]; | ||
// Opera 7 discards null characters in strings. | ||
if ('\0'.length) { | ||
expected += 1; | ||
controlCharacters.push('\u0000'); | ||
} | ||
parses('value', '"value"', 'Double-quoted string literal'); | ||
parses('', '""', 'Empty string literal'); | ||
parses('\u2028', '"\\u2028"', 'String containing an escaped Unicode line separator'); | ||
parses('\u2029', '"\\u2029"', 'String containing an escaped Unicode paragraph separator'); | ||
// ExtendScript doesn't handle surrogate pairs correctly; attempting to | ||
// parse `"\ud834\udf06"` will throw an uncatchable error (issue #29). | ||
parses('\ud834\udf06', '"\ud834\udf06"', 'String containing an unescaped Unicode surrogate pair'); | ||
parses('\u0001', '"\\u0001"', 'String containing an escaped ASCII control character'); | ||
parses('\b', '"\\b"', 'String containing an escaped backspace'); | ||
parses('\f', '"\\f"', 'String containing an escaped form feed'); | ||
parses('\n', '"\\n"', 'String containing an escaped line feed'); | ||
parses('\r', '"\\r"', 'String containing an escaped carriage return'); | ||
parses('\t', '"\\t"', 'String containing an escaped tab'); | ||
parses('hello/world', '"hello\\/world"', 'String containing an escaped solidus'); | ||
parses('hello\\world', '"hello\\\\world"', 'String containing an escaped reverse solidus'); | ||
parses('hello"world', '"hello\\"world"', 'String containing an escaped double-quote character'); | ||
parseError('\'hello\'', 'Single-quoted string literal'); | ||
parseError('"\\x61"', 'String containing a hex escape sequence'); | ||
parseError('"hello \r\n world"', 'String containing an unescaped CRLF line ending'); | ||
controlCharacters.forEach(function (value) { | ||
parseError('"' + value + '"', 'String containing an unescaped ASCII control character'); | ||
}); | ||
}); | ||
it('`parse`: Array Literals', function () { | ||
parseError('[1, 2, 3,]', 'Trailing comma in array literal'); | ||
parses([1, 2, [3, [4, 5]], 6, [true, false], [null], [[]]], '[1, 2, [3, [4, 5]], 6, [true, false], [null], [[]]]', 'Nested arrays'); | ||
parses([{}], '[{}]', 'Array containing empty object literal'); | ||
var expected = [ | ||
100, | ||
true, | ||
false, | ||
null, | ||
{ | ||
a: ['hello'], | ||
b: ['world'] | ||
}, | ||
[0.01] | ||
]; | ||
parses(expected, '[1e2, true, false, null, {"a": ["hello"], "b": ["world"]}, [1e-2]]', 'Mixed array'); | ||
}); | ||
it('`parse`: Object Literals', function () { | ||
parses({ | ||
hello: 'world' | ||
}, '{"hello": "world"}', 'Object literal containing one member'); | ||
parses({ | ||
hello: 'world', | ||
foo: ['bar', true], | ||
fox: { | ||
quick: true, | ||
purple: false | ||
} | ||
}, '{"hello": "world", "foo": ["bar", true], "fox": {"quick": true, "purple": false}}', 'Object literal containing multiple members'); | ||
parseError('{key: 1}', 'Unquoted identifier used as a property name'); | ||
parseError('{false: 1}', '`false` used as a property name'); | ||
parseError('{true: 1}', '`true` used as a property name'); | ||
parseError('{null: 1}', '`null` used as a property name'); | ||
parseError('{\'key\': 1}', 'Single-quoted string used as a property name'); | ||
parseError('{1: 2, 3: 4}', 'Number used as a property name'); | ||
parseError('{"hello": "world", "foo": "bar",}', 'Trailing comma in object literal'); | ||
}); | ||
// JavaScript expressions should never be evaluated, as JSON 3 does not use | ||
// `eval`. | ||
it('`parse`: Invalid Expressions', function () { | ||
var expressions = [ | ||
'1 + 1', | ||
'1 * 2', | ||
'var value = 123;', | ||
'{});value = 123;({}', | ||
'call()', | ||
'1, 2, 3, "value"' | ||
]; | ||
expressions.forEach(function (expression) { | ||
parseError(expression, 'Source string containing a JavaScript expression'); | ||
}); | ||
}); | ||
it('`stringify` and `parse`: Optional Arguments', function () { | ||
parses({ | ||
a: 1, | ||
b: 16 | ||
}, '{"a": 1, "b": "10000"}', 'Callback function provided', function (key, value) { | ||
return typeof value === 'string' ? parseInt(value, 2) : value; | ||
}); | ||
serializes('{\n "bar": 456\n}', { | ||
foo: 123, | ||
bar: 456 | ||
}, 'Object; optional `filter` and `whitespace` arguments', ['bar'], 2); | ||
// Test adapted from the Opera JSON test suite via Ken Snyder. | ||
// See http://testsuites.opera.com/JSON/correctness/scripts/045.js | ||
// The regular expression is necessary because the ExtendScript engine | ||
// only approximates pi to 14 decimal places (ES 3 and ES 5 approximate | ||
// pi to 15 places). | ||
expect(/^\{"PI":3\.\d{14,15}\}$/.test(JSON.stringify(Math, ['PI'])), 'List of non-enumerable property names specified as the `filter` argument').toBe(true); | ||
expect(JSON.parse('[1, 2, 3]', function (key, value) { | ||
if (typeof value === 'object' && value) { | ||
return value; | ||
} | ||
}).length, 'Issue #10: `walk` should not use `splice` when removing an array element').toBe(3); | ||
}); | ||
it('`stringify`', function () { | ||
var expected = 30; | ||
// Special values. | ||
serializes('null', null, '`null` is represented literally'); | ||
serializes('null', 1 / 0, '`Infinity` is serialized as `null`'); | ||
serializes('null', 0 / 0, '`NaN` is serialized as `null`'); | ||
serializes('null', -1 / 0, '`-Infinity` is serialized as `null`'); | ||
serializes('true', true, 'Boolean primitives are represented literally'); | ||
serializes('false', Object(false), 'Boolean objects are represented literally'); | ||
serializes('"\\\\\\"How\\bquickly\\tdaft\\njumping\\fzebras\\rvex\\""', Object('\\"How\bquickly\tdaft\njumping\fzebras\rvex"'), 'All control characters in strings are escaped'); | ||
serializes('[false,1,"Kit"]', [Object(false), Object(1), Object('Kit')], 'Arrays are serialized recursively'); | ||
serializes('[null]', [void 0], '`[undefined]` is serialized as `[null]`'); | ||
// Property enumeration is implementation-dependent. | ||
var value = { | ||
jdalton: ['John-David', 29], | ||
kitcambridge: ['Kit', 18], | ||
mathias: ['Mathias', 23] | ||
}; | ||
parses(value, JSON.stringify(value), 'Objects are serialized recursively'); | ||
// Complex cyclic structures. | ||
value = { | ||
foo: { | ||
b: { | ||
foo: { | ||
c: { | ||
foo: null | ||
} | ||
} | ||
} | ||
} | ||
}; | ||
serializes('{"foo":{"b":{"foo":{"c":{"foo":null}}}}}', value, 'Nested objects containing identically-named properties should serialize correctly'); | ||
var S = [], N = {}; | ||
S.push(N, N); | ||
serializes('[{},{}]', S, 'Objects containing duplicate references should not throw a `TypeError`'); | ||
value.foo.b.foo.c.foo = value; | ||
cyclicError(value, 'Objects containing complex circular references should throw a `TypeError`'); | ||
// Sparse arrays. | ||
value = []; | ||
value[5] = 1; | ||
serializes('[null,null,null,null,null,1]', value, 'Sparse arrays should serialize correctly'); | ||
// Dates. | ||
serializes('"1994-07-03T00:00:00.000Z"', new Date(Date.UTC(1994, 6, 3)), 'Dates should be serialized according to the simplified date time string format'); | ||
serializes('"1993-06-02T02:10:28.224Z"', new Date(Date.UTC(1993, 5, 2, 2, 10, 28, 224)), 'The date time string should conform to the format outlined in the spec'); | ||
serializes('"-271821-04-20T00:00:00.000Z"', new Date(-8.64e15), 'The minimum valid date value should serialize correctly'); | ||
serializes('"+275760-09-13T00:00:00.000Z"', new Date(8.64e15), 'The maximum valid date value should serialize correctly'); | ||
serializes('"+010000-01-01T00:00:00.000Z"', new Date(Date.UTC(10000, 0, 1)), 'https://bugs.ecmascript.org/show_bug.cgi?id=119'); | ||
value = new Date(); | ||
value.toJSON = function () { | ||
return 'date'; | ||
}; | ||
serializes('"date"', value); | ||
// Tests based on research by @Yaffle. See kriskowal/es5-shim#111. | ||
serializes('"1969-12-31T23:59:59.999Z"', new Date(-1), 'Millisecond values < 1000 should be serialized correctly'); | ||
serializes('"-000001-01-01T00:00:00.000Z"', new Date(-621987552e5), 'Years prior to 0 should be serialized as extended years'); | ||
serializes('"+010000-01-01T00:00:00.000Z"', new Date(2534023008e5), 'Years after 9999 should be serialized as extended years'); | ||
serializes('"-109252-01-01T10:37:06.708Z"', new Date(-3509827334573292), 'Issue #4: Opera > 9.64 should correctly serialize a date with a year of `-109252`'); | ||
// Opera 7 normalizes dates with invalid time values to represent the | ||
// current date. | ||
value = new Date('Kit'); | ||
if (!isFinite(value)) { | ||
expected += 1; | ||
serializes('null', value, 'Invalid dates should serialize as `null`'); | ||
} | ||
// Additional arguments. | ||
serializes('[\n 1,\n 2,\n 3,\n [\n 4,\n 5\n ]\n]', [1, 2, 3, [4, 5]], 'Nested arrays; optional `whitespace` argument', null, ' '); | ||
serializes('[]', [], 'Empty array; optional string `whitespace` argument', null, ' '); | ||
serializes('{}', {}, 'Empty object; optional numeric `whitespace` argument', null, 2); | ||
serializes('[\n 1\n]', [1], 'Single-element array; optional numeric `whitespace` argument', null, 2); | ||
serializes('{\n "foo": 123\n}', { | ||
foo: 123 | ||
}, 'Single-member object; optional string `whitespace` argument', null, ' '); | ||
serializes('{\n "foo": {\n "bar": [\n 123\n ]\n }\n}', { | ||
foo: { | ||
bar: [123] | ||
} | ||
}, 'Nested objects; optional numeric `whitespace` argument', null, 2); | ||
}); | ||
|
||
/* | ||
* The following tests are adapted from the ECMAScript 5 Conformance Suite. | ||
* Copyright 2009, Microsoft Corporation. Distributed under the New BSD License. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are met: | ||
* | ||
* - Redistributions of source code must retain the above copyright notice, | ||
* this list of conditions and the following disclaimer. | ||
* - Redistributions in binary form must reproduce the above copyright notice, | ||
* this list of conditions and the following disclaimer in the documentation | ||
* and/or other materials provided with the distribution. | ||
* - Neither the name of Microsoft nor the names of its contributors may be | ||
* used to endorse or promote products derived from this software without | ||
* specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
* POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
it('ECMAScript 5 Conformance', function () { | ||
var value = { | ||
a1: { | ||
b1: [1, 2, 3, 4], | ||
b2: { | ||
c1: 1, | ||
c2: 2 | ||
} | ||
}, | ||
a2: 'a2' | ||
}; | ||
// Section 15.12.1.1: The JSON Grammar. | ||
// ------------------------------------ | ||
// Tests 15.12.1.1-0-1 thru 15.12.1.1-0-8. | ||
parseError('12\t\r\n 34', 'Valid whitespace characters may not separate two discrete tokens'); | ||
parseError('\u000b1234', 'The vertical tab is not a valid whitespace character'); | ||
parseError('\u000c1234', 'The form feed is not a valid whitespace character'); | ||
parseError('\u00a01234', 'The non-breaking space is not a valid whitespace character'); | ||
parseError('\u200b1234', 'The zero-width space is not a valid whitespace character'); | ||
parseError('\ufeff1234', 'The byte order mark (zero-width non-breaking space) is not a valid whitespace character'); | ||
parseError('\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u30001234', 'Other Unicode category `Z` characters are not valid whitespace characters'); | ||
parseError('\u2028\u20291234', 'The line (U+2028) and paragraph (U+2029) separators are not valid whitespace characters'); | ||
// Test 15.12.1.1-0-9. | ||
parses({ | ||
property: {}, | ||
prop2: [true, null, 123.456] | ||
}, | ||
'\t\r \n{\t\r \n' + | ||
'"property"\t\r \n:\t\r \n{\t\r \n}\t\r \n,\t\r \n' + | ||
'"prop2"\t\r \n:\t\r \n' + | ||
'[\t\r \ntrue\t\r \n,\t\r \nnull\t\r \n,123.456\t\r \n]' + | ||
'\t\r \n}\t\r \n', | ||
'Valid whitespace characters may precede and follow all tokens'); | ||
// Tests 15.12.1.1-g1-1 thru 15.12.1.1-g1-4. | ||
parses(1234, '\t1234', 'Leading tab characters should be ignored'); | ||
parseError('12\t34', 'A tab character may not separate two disparate tokens'); | ||
parses(1234, '\r1234', 'Leading carriage returns should be ignored'); | ||
parseError('12\r34', 'A carriage return may not separate two disparate tokens'); | ||
parses(1234, '\n1234', 'Leading line feeds should be ignored'); | ||
parseError('12\n34', 'A line feed may not separate two disparate tokens'); | ||
parses(1234, ' 1234', 'Leading space characters should be ignored'); | ||
parseError('12 34', 'A space character may not separate two disparate tokens'); | ||
// Tests 15.12.1.1-g2-1 thru 15.12.1.1-g2-5. | ||
parses('abc', '"abc"', 'Strings must be enclosed in double quotes'); | ||
parseError('\'abc\'', 'Single-quoted strings are not permitted'); | ||
// Note: the original test 15.12.1.1-g2-3 (`"\u0022abc\u0022"`) is incorrect, | ||
// as the JavaScript interpreter will always convert `\u0022` to `"`. | ||
parseError('\\u0022abc\\u0022', 'Unicode-escaped double quote delimiters are not permitted'); | ||
parseError('"abc\'', 'Strings must terminate with a double quote character'); | ||
parses('', '""', 'Strings may be empty'); | ||
// Tests 15.12.1.1-g4-1 thru 15.12.1.1-g4-4. | ||
parseError('"\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007"', 'Unescaped control characters in the range [U+0000, U+0007] are not permitted within strings'); | ||
parseError('"\u0008\u0009\u000a\u000b\u000c\u000d\u000e\u000f"', 'Unescaped control characters in the range [U+0008, U+000F] are not permitted within strings'); | ||
parseError('"\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017"', 'Unescaped control characters in the range [U+0010, U+0017] are not permitted within strings'); | ||
parseError('"\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f"', 'Unescaped control characters in the range [U+0018, U+001F] are not permitted within strings'); | ||
// Tests 15.12.1.1-g5-1 thru 15.12.1.1-g5-3. | ||
parses('X', '"\\u0058"', 'Unicode escape sequences are permitted within strings'); | ||
parseError('"\\u005"', 'Unicode escape sequences may not comprise fewer than four hexdigits'); | ||
parseError('"\\u0X50"', 'Unicode escape sequences may not contain non-hex characters'); | ||
// Tests 15.12.1.1-g6-1 thru 15.12.1.1-g6-7. | ||
parses('/', '"\\/"', 'Escaped solidus'); | ||
parses('\\', '"\\\\"', 'Escaped reverse solidus'); | ||
parses('\b', '"\\b"', 'Escaped backspace'); | ||
parses('\f', '"\\f"', 'Escaped form feed'); | ||
parses('\n', '"\\n"', 'Escaped line feed'); | ||
parses('\r', '"\\r"', 'Escaped carriage return'); | ||
parses('\t', '"\\t"', 'Escaped tab'); | ||
|
||
// Section 15.12.3: `JSON.stringify()`. | ||
// ------------------------------------ | ||
// Test 15.12.3-11-1 thru 5.12.3-11-15. | ||
serializes(void 0, void 0, '`JSON.stringify(undefined)` should return `undefined`'); | ||
serializes('"replacement"', void 0, 'The `JSON.stringify` callback function can be called on a top-level `undefined` value', function () { | ||
return 'replacement'; | ||
}); | ||
serializes('"a string"', 'a string', '`JSON.stringify` should serialize top-level string primitives'); | ||
serializes('123', 123, '`JSON.stringify` should serialize top-level number primitives'); | ||
serializes('true', true, '`JSON.stringify` should serialize top-level Boolean primitives'); | ||
serializes('null', null, '`JSON.stringify` should serialize top-level `null` values'); | ||
serializes('42', Object(42), '`JSON.stringify` should serialize top-level number objects'); | ||
serializes('"wrapped"', Object('wrapped'), '`JSON.stringify` should serialize top-level string objects'); | ||
serializes('false', Object(false), '`JSON.stringify` should serialize top-level Boolean objects'); | ||
serializes(void 0, 42, 'The `JSON.stringify` callback function may return `undefined` when called on a top-level number primitive', function () { | ||
return void 0; | ||
}); | ||
serializes(void 0, { | ||
prop: 1 | ||
}, 'The `JSON.stringify` callback function may return `undefined` when called on a top-level object', function () { | ||
return void 0; | ||
}); | ||
serializes('[4,2]', 42, 'The `JSON.stringify` callback function may return an array when called on a top-level number primitive', function (key, value) { | ||
return value === 42 ? [4, 2] : value; | ||
}); | ||
serializes('{"forty":2}', 42, 'The `JSON.stringify` callback function may return an object literal when called on a top-level number primitive', function (key, value) { | ||
return value === 42 ? { | ||
forty: 2 | ||
} : value; | ||
}); | ||
serializes(void 0, function () {}, '`JSON.stringify` should return `undefined` when called on a top-level function'); | ||
serializes('99', function () {}, 'The `JSON.stringify` callback function may return a number primitive when called on a top-level function', function () { | ||
return 99; | ||
}); | ||
// Test 15.12.3-4-1. | ||
serializes('[42]', [42], '`JSON.stringify` should ignore `filter` arguments that are not functions or arrays', {}); | ||
// Test 15.12.3-5-a-i-1 and 15.12.3-5-b-i-1. | ||
expect(JSON.stringify(value, null, 5), 'Optional `width` argument: Number object and primitive width values should produce identical results').toBe(JSON.stringify(value, null, Object(5))); | ||
expect(JSON.stringify(value, null, 'xxx'), 'Optional `width` argument: String object and primitive width values should produce identical results').toBe(JSON.stringify(value, null, Object('xxx'))); | ||
// Test 15.12.3-6-a-1 and 15.12.3-6-a-2. | ||
expect(JSON.stringify(value, null, 100), 'Optional `width` argument: The maximum numeric width value should be 10').toBe(JSON.stringify(value, null, 10)); | ||
expect(JSON.stringify(value, null, 5.99999), 'Optional `width` argument: Numeric values should be converted to integers').toBe(JSON.stringify(value, null, 5)); | ||
// Test 15.12.3-6-b-1 and 15.12.3-6-b-4. | ||
expect(JSON.stringify(value, null, 0.999999), 'Optional `width` argument: Numeric width values between 0 and 1 should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, 0), 'Optional `width` argument: Zero should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, -5), 'Optional `width` argument: Negative numeric values should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, 5), 'Optional `width` argument: Numeric width values in the range [1, 10] should produce identical results to that of string values containing `width` spaces').toBe(JSON.stringify(value, null, ' ')); | ||
// Test 15.12.3-7-a-1. | ||
expect(JSON.stringify(value, null, '0123456789xxxxxxxxx'), 'Optional `width` argument: String width values longer than 10 characters should be truncated').toBe(JSON.stringify(value, null, '0123456789')); | ||
// Test 15.12.3-8-a-1 thru 15.12.3-8-a-5. | ||
expect(JSON.stringify(value, null, ''), 'Empty string `width` arguments should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, true), 'Boolean primitive `width` arguments should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, null), '`null` `width` arguments should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, Object(false)), 'Boolean object `width` arguments should be ignored').toBe(JSON.stringify(value)); | ||
expect(JSON.stringify(value, null, value), 'Object literal `width` arguments should be ignored').toBe(JSON.stringify(value)); | ||
// Test 15.12.3@2-2-b-i-1. | ||
serializes('["fortytwo objects"]', [ | ||
{ | ||
prop: 42, | ||
toJSON: function () { | ||
return 'fortytwo objects'; | ||
} | ||
} | ||
], 'An object literal with a custom `toJSON` method nested within an array may return a string primitive for serialization'); | ||
// Test 15.12.3@2-2-b-i-2. | ||
serializes('[42]', [ | ||
{ | ||
prop: 42, | ||
toJSON: function () { | ||
return Object(42); | ||
} | ||
} | ||
], 'An object literal with a custom `toJSON` method nested within an array may return a number object for serialization'); | ||
// Test 15.12.3@2-2-b-i-3. | ||
serializes('[true]', [ | ||
{ | ||
prop: 42, | ||
toJSON: function () { | ||
return Object(true); | ||
} | ||
} | ||
], 'An object literal with a custom `toJSON` method nested within an array may return a Boolean object for serialization'); | ||
// Test 15.12.3@2-3-a-1. | ||
serializes('["fortytwo"]', [42], 'The `JSON.stringify` callback function may return a string object when called on an array', function (key, value) { | ||
return value === 42 ? Object('fortytwo') : value; | ||
}); | ||
// Test 15.12.3@2-3-a-2. | ||
serializes('[84]', [42], 'The `JSON.stringify` callback function may return a number object when called on an array', function (key, value) { | ||
return value === 42 ? Object(84) : value; | ||
}); | ||
// Test 15.12.3@2-3-a-3. | ||
serializes('[false]', [42], 'The `JSON.stringify` callback function may return a Boolean object when called on an array', function (key, value) { | ||
return value === 42 ? Object(false) : value; | ||
}); | ||
// Test 15.12.3@4-1-2. 15.12.3@4-1-1 only tests whether an exception is | ||
// thrown; the type of the exception is not checked. | ||
value = {}; | ||
value.prop = value; | ||
cyclicError(value, 'An object containing a circular reference should throw a `TypeError`'); | ||
// Test 15.12.3@4-1-3, modified to ensure that a `TypeError` is thrown. | ||
value = { | ||
p1: { | ||
p2: {} | ||
} | ||
}; | ||
value.p1.p2.prop = value; | ||
cyclicError(value, 'A nested cyclic structure should throw a `TypeError`'); | ||
}); | ||
}); |