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quickjs/tests/test_builtin.js
landerlyoung 2ecaf6cf97 Add WeakRef implementation 
1. Refactor JSObject weak reference list to support different kind of weak reference
2. Support Symbol as WeakMap key
2024-08-06 21:02:22 +08:00

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"use strict";
var status = 0;
var throw_errors = true;
function throw_error(msg) {
if (throw_errors)
throw Error(msg);
console.log(msg);
status = 1;
}
function assert(actual, expected, message) {
function get_full_type(o) {
var type = typeof(o);
if (type === 'object') {
if (o === null)
return 'null';
if (o.constructor && o.constructor.name)
return o.constructor.name;
}
return type;
}
if (arguments.length == 1)
expected = true;
if (typeof actual === typeof expected) {
if (actual === expected) {
if (actual !== 0 || (1 / actual) === (1 / expected))
return;
}
if (typeof actual === 'number') {
if (isNaN(actual) && isNaN(expected))
return true;
}
if (typeof actual === 'object') {
if (actual !== null && expected !== null
&& actual.constructor === expected.constructor
&& actual.toString() === expected.toString())
return;
}
}
// Should output the source file and line number and extract
// the expression from the assert call
throw_error("assertion failed: got " +
get_full_type(actual) + ":|" + actual + "|, expected " +
get_full_type(expected) + ":|" + expected + "|" +
(message ? " (" + message + ")" : ""));
}
function assert_throws(expected_error, func)
{
var err = false;
try {
func();
} catch(e) {
err = true;
if (!(e instanceof expected_error)) {
// Should output the source file and line number and extract
// the expression from the assert_throws() call
throw_error("unexpected exception type");
return;
}
}
if (!err) {
// Should output the source file and line number and extract
// the expression from the assert_throws() call
throw_error("expected exception");
}
}
// load more elaborate version of assert if available
try { __loadScript("test_assert.js"); } catch(e) {}
/*----------------*/
function my_func(a, b)
{
return a + b;
}
function test_function()
{
function f(a, b) {
var i, tab = [];
tab.push(this);
for(i = 0; i < arguments.length; i++)
tab.push(arguments[i]);
return tab;
}
function constructor1(a) {
this.x = a;
}
var r, g;
r = my_func.call(null, 1, 2);
assert(r, 3, "call");
r = my_func.apply(null, [1, 2]);
assert(r, 3, "apply");
r = (function () { return 1; }).apply(null, undefined);
assert(r, 1);
assert_throws(TypeError, (function() {
Reflect.apply((function () { return 1; }), null, undefined);
}));
r = new Function("a", "b", "return a + b;");
assert(r(2,3), 5, "function");
g = f.bind(1, 2);
assert(g.length, 1);
assert(g.name, "bound f");
assert(g(3), [1,2,3]);
g = constructor1.bind(null, 1);
r = new g();
assert(r.x, 1);
}
function test()
{
var r, a, b, c, err;
r = Error("hello");
assert(r.message, "hello", "Error");
a = new Object();
a.x = 1;
assert(a.x, 1, "Object");
assert(Object.getPrototypeOf(a), Object.prototype, "getPrototypeOf");
Object.defineProperty(a, "y", { value: 3, writable: true, configurable: true, enumerable: true });
assert(a.y, 3, "defineProperty");
Object.defineProperty(a, "z", { get: function () { return 4; }, set: function(val) { this.z_val = val; }, configurable: true, enumerable: true });
assert(a.z, 4, "get");
a.z = 5;
assert(a.z_val, 5, "set");
a = { get z() { return 4; }, set z(val) { this.z_val = val; } };
assert(a.z, 4, "get");
a.z = 5;
assert(a.z_val, 5, "set");
b = Object.create(a);
assert(Object.getPrototypeOf(b), a, "create");
c = {u:2};
/* XXX: refcount bug in 'b' instead of 'a' */
Object.setPrototypeOf(a, c);
assert(Object.getPrototypeOf(a), c, "setPrototypeOf");
a = {};
assert(a.toString(), "[object Object]", "toString");
a = {x:1};
assert(Object.isExtensible(a), true, "extensible");
Object.preventExtensions(a);
err = false;
try {
a.y = 2;
} catch(e) {
err = true;
}
assert(Object.isExtensible(a), false, "extensible");
assert(typeof a.y, "undefined", "extensible");
assert(err, true, "extensible");
}
function test_enum()
{
var a, tab;
a = {x:1,
"18014398509481984": 1,
"9007199254740992": 1,
"9007199254740991": 1,
"4294967296": 1,
"4294967295": 1,
y:1,
"4294967294": 1,
"1": 2};
tab = Object.keys(a);
// console.log("tab=" + tab.toString());
assert(tab, ["1","4294967294","x","18014398509481984","9007199254740992","9007199254740991","4294967296","4294967295","y"], "keys");
}
function test_array()
{
var a, err;
a = [1, 2, 3];
assert(a.length, 3, "array");
assert(a[2], 3, "array1");
a = new Array(10);
assert(a.length, 10, "array2");
a = new Array(1, 2);
assert(a.length === 2 && a[0] === 1 && a[1] === 2, true, "array3");
a = [1, 2, 3];
a.length = 2;
assert(a.length === 2 && a[0] === 1 && a[1] === 2, true, "array4");
a = [];
a[1] = 10;
a[4] = 3;
assert(a.length, 5);
a = [1,2];
a.length = 5;
a[4] = 1;
a.length = 4;
assert(a[4] !== 1, true, "array5");
a = [1,2];
a.push(3,4);
assert(a.join(), "1,2,3,4", "join");
a = [1,2,3,4,5];
Object.defineProperty(a, "3", { configurable: false });
err = false;
try {
a.length = 2;
} catch(e) {
err = true;
}
assert(err && a.toString() === "1,2,3,4");
}
function test_string()
{
var a;
a = String("abc");
assert(a.length, 3, "string");
assert(a[1], "b", "string");
assert(a.charCodeAt(1), 0x62, "string");
assert(String.fromCharCode(65), "A", "string");
assert(String.fromCharCode.apply(null, [65, 66, 67]), "ABC", "string");
assert(a.charAt(1), "b");
assert(a.charAt(-1), "");
assert(a.charAt(3), "");
a = "abcd";
assert(a.substring(1, 3), "bc", "substring");
a = String.fromCharCode(0x20ac);
assert(a.charCodeAt(0), 0x20ac, "unicode");
assert(a, "€", "unicode");
assert(a, "\u20ac", "unicode");
assert(a, "\u{20ac}", "unicode");
assert("a", "\x61", "unicode");
a = "\u{10ffff}";
assert(a.length, 2, "unicode");
assert(a, "\u{dbff}\u{dfff}", "unicode");
assert(a.codePointAt(0), 0x10ffff);
assert(String.fromCodePoint(0x10ffff), a);
assert("a".concat("b", "c"), "abc");
assert("abcabc".indexOf("cab"), 2);
assert("abcabc".indexOf("cab2"), -1);
assert("abc".indexOf("c"), 2);
assert("aaa".indexOf("a"), 0);
assert("aaa".indexOf("a", NaN), 0);
assert("aaa".indexOf("a", -Infinity), 0);
assert("aaa".indexOf("a", -1), 0);
assert("aaa".indexOf("a", -0), 0);
assert("aaa".indexOf("a", 0), 0);
assert("aaa".indexOf("a", 1), 1);
assert("aaa".indexOf("a", 2), 2);
assert("aaa".indexOf("a", 3), -1);
assert("aaa".indexOf("a", 4), -1);
assert("aaa".indexOf("a", Infinity), -1);
assert("aaa".indexOf(""), 0);
assert("aaa".indexOf("", NaN), 0);
assert("aaa".indexOf("", -Infinity), 0);
assert("aaa".indexOf("", -1), 0);
assert("aaa".indexOf("", -0), 0);
assert("aaa".indexOf("", 0), 0);
assert("aaa".indexOf("", 1), 1);
assert("aaa".indexOf("", 2), 2);
assert("aaa".indexOf("", 3), 3);
assert("aaa".indexOf("", 4), 3);
assert("aaa".indexOf("", Infinity), 3);
assert("aaa".lastIndexOf("a"), 2);
assert("aaa".lastIndexOf("a", NaN), 2);
assert("aaa".lastIndexOf("a", -Infinity), 0);
assert("aaa".lastIndexOf("a", -1), 0);
assert("aaa".lastIndexOf("a", -0), 0);
assert("aaa".lastIndexOf("a", 0), 0);
assert("aaa".lastIndexOf("a", 1), 1);
assert("aaa".lastIndexOf("a", 2), 2);
assert("aaa".lastIndexOf("a", 3), 2);
assert("aaa".lastIndexOf("a", 4), 2);
assert("aaa".lastIndexOf("a", Infinity), 2);
assert("aaa".lastIndexOf(""), 3);
assert("aaa".lastIndexOf("", NaN), 3);
assert("aaa".lastIndexOf("", -Infinity), 0);
assert("aaa".lastIndexOf("", -1), 0);
assert("aaa".lastIndexOf("", -0), 0);
assert("aaa".lastIndexOf("", 0), 0);
assert("aaa".lastIndexOf("", 1), 1);
assert("aaa".lastIndexOf("", 2), 2);
assert("aaa".lastIndexOf("", 3), 3);
assert("aaa".lastIndexOf("", 4), 3);
assert("aaa".lastIndexOf("", Infinity), 3);
assert("a,b,c".split(","), ["a","b","c"]);
assert(",b,c".split(","), ["","b","c"]);
assert("a,b,".split(","), ["a","b",""]);
assert("aaaa".split(), [ "aaaa" ]);
assert("aaaa".split(undefined, 0), [ ]);
assert("aaaa".split(""), [ "a", "a", "a", "a" ]);
assert("aaaa".split("", 0), [ ]);
assert("aaaa".split("", 1), [ "a" ]);
assert("aaaa".split("", 2), [ "a", "a" ]);
assert("aaaa".split("a"), [ "", "", "", "", "" ]);
assert("aaaa".split("a", 2), [ "", "" ]);
assert("aaaa".split("aa"), [ "", "", "" ]);
assert("aaaa".split("aa", 0), [ ]);
assert("aaaa".split("aa", 1), [ "" ]);
assert("aaaa".split("aa", 2), [ "", "" ]);
assert("aaaa".split("aaa"), [ "", "a" ]);
assert("aaaa".split("aaaa"), [ "", "" ]);
assert("aaaa".split("aaaaa"), [ "aaaa" ]);
assert("aaaa".split("aaaaa", 0), [ ]);
assert("aaaa".split("aaaaa", 1), [ "aaaa" ]);
assert(eval('"\0"'), "\0");
assert("abc".padStart(Infinity, ""), "abc");
}
function test_math()
{
var a;
a = 1.4;
assert(Math.floor(a), 1);
assert(Math.ceil(a), 2);
assert(Math.imul(0x12345678, 123), -1088058456);
assert(Math.imul(0xB505, 0xB504), 2147441940);
assert(Math.imul(0xB505, 0xB505), -2147479015);
assert(Math.imul((-2)**31, (-2)**31), 0);
assert(Math.imul(2**31-1, 2**31-1), 1);
assert(Math.fround(0.1), 0.10000000149011612);
assert(Math.hypot(), 0);
assert(Math.hypot(-2), 2);
assert(Math.hypot(3, 4), 5);
assert(Math.abs(Math.hypot(3, 4, 5) - 7.0710678118654755) <= 1e-15);
}
function test_number()
{
assert(parseInt("123"), 123);
assert(parseInt(" 123r"), 123);
assert(parseInt("0x123"), 0x123);
assert(parseInt("0o123"), 0);
assert(+" 123 ", 123);
assert(+"0b111", 7);
assert(+"0o123", 83);
assert(parseFloat("2147483647"), 2147483647);
assert(parseFloat("2147483648"), 2147483648);
assert(parseFloat("-2147483647"), -2147483647);
assert(parseFloat("-2147483648"), -2147483648);
assert(parseFloat("0x1234"), 0);
assert(parseFloat("Infinity"), Infinity);
assert(parseFloat("-Infinity"), -Infinity);
assert(parseFloat("123.2"), 123.2);
assert(parseFloat("123.2e3"), 123200);
assert(Number.isNaN(Number("+")));
assert(Number.isNaN(Number("-")));
assert(Number.isNaN(Number("\x00a")));
// TODO: Fix rounding errors on Windows/Cygwin.
if (typeof os !== 'undefined' && ['win32', 'cygwin'].includes(os.platform)) {
return;
}
assert((25).toExponential(0), "3e+1");
assert((-25).toExponential(0), "-3e+1");
assert((2.5).toPrecision(1), "3");
assert((-2.5).toPrecision(1), "-3");
assert((1.125).toFixed(2), "1.13");
assert((-1.125).toFixed(2), "-1.13");
}
function test_eval2()
{
var g_call_count = 0;
/* force non strict mode for f1 and f2 */
var f1 = new Function("eval", "eval(1, 2)");
var f2 = new Function("eval", "eval(...[1, 2])");
function g(a, b) {
assert(a, 1);
assert(b, 2);
g_call_count++;
}
f1(g);
f2(g);
assert(g_call_count, 2);
}
function test_eval()
{
function f(b) {
var x = 1;
return eval(b);
}
var r, a;
r = eval("1+1;");
assert(r, 2, "eval");
r = eval("var my_var=2; my_var;");
assert(r, 2, "eval");
assert(typeof my_var, "undefined");
assert(eval("if (1) 2; else 3;"), 2);
assert(eval("if (0) 2; else 3;"), 3);
assert(f.call(1, "this"), 1);
a = 2;
assert(eval("a"), 2);
eval("a = 3");
assert(a, 3);
assert(f("arguments.length", 1), 2);
assert(f("arguments[1]", 1), 1);
a = 4;
assert(f("a"), 4);
f("a=3");
assert(a, 3);
test_eval2();
}
function test_typed_array()
{
var buffer, a, i, str;
a = new Uint8Array(4);
assert(a.length, 4);
for(i = 0; i < a.length; i++)
a[i] = i;
assert(a.join(","), "0,1,2,3");
a[0] = -1;
assert(a[0], 255);
a = new Int8Array(3);
a[0] = 255;
assert(a[0], -1);
a = new Int32Array(3);
a[0] = Math.pow(2, 32) - 1;
assert(a[0], -1);
assert(a.BYTES_PER_ELEMENT, 4);
a = new Uint8ClampedArray(4);
a[0] = -100;
a[1] = 1.5;
a[2] = 0.5;
a[3] = 1233.5;
assert(a.toString(), "0,2,0,255");
buffer = new ArrayBuffer(16);
assert(buffer.byteLength, 16);
a = new Uint32Array(buffer, 12, 1);
assert(a.length, 1);
a[0] = -1;
a = new Uint16Array(buffer, 2);
a[0] = -1;
a = new Float32Array(buffer, 8, 1);
a[0] = 1;
a = new Uint8Array(buffer);
str = a.toString();
/* test little and big endian cases */
if (str !== "0,0,255,255,0,0,0,0,0,0,128,63,255,255,255,255" &&
str !== "0,0,255,255,0,0,0,0,63,128,0,0,255,255,255,255") {
assert(false);
}
assert(a.buffer, buffer);
a = new Uint8Array([1, 2, 3, 4]);
assert(a.toString(), "1,2,3,4");
a.set([10, 11], 2);
assert(a.toString(), "1,2,10,11");
}
function test_json()
{
var a, s;
s = '{"x":1,"y":true,"z":null,"a":[1,2,3],"s":"str"}';
a = JSON.parse(s);
assert(a.x, 1);
assert(a.y, true);
assert(a.z, null);
assert(JSON.stringify(a), s);
/* indentation test */
assert(JSON.stringify([[{x:1,y:{},z:[]},2,3]],undefined,1),
`[
[
{
"x": 1,
"y": {},
"z": []
},
2,
3
]
]`);
}
function test_date()
{
// Date Time String format is YYYY-MM-DDTHH:mm:ss.sssZ
// accepted date formats are: YYYY, YYYY-MM and YYYY-MM-DD
// accepted time formats are: THH:mm, THH:mm:ss, THH:mm:ss.sss
// expanded years are represented with 6 digits prefixed by + or -
// -000000 is invalid.
// A string containing out-of-bounds or nonconforming elements
// is not a valid instance of this format.
// Hence the fractional part after . should have 3 digits and how
// a different number of digits is handled is implementation defined.
assert(Date.parse(""), NaN);
assert(Date.parse("2000"), 946684800000);
assert(Date.parse("2000-01"), 946684800000);
assert(Date.parse("2000-01-01"), 946684800000);
//assert(Date.parse("2000-01-01T"), NaN);
//assert(Date.parse("2000-01-01T00Z"), NaN);
assert(Date.parse("2000-01-01T00:00Z"), 946684800000);
assert(Date.parse("2000-01-01T00:00:00Z"), 946684800000);
assert(Date.parse("2000-01-01T00:00:00.1Z"), 946684800100);
assert(Date.parse("2000-01-01T00:00:00.10Z"), 946684800100);
assert(Date.parse("2000-01-01T00:00:00.100Z"), 946684800100);
assert(Date.parse("2000-01-01T00:00:00.1000Z"), 946684800100);
assert(Date.parse("2000-01-01T00:00:00+00:00"), 946684800000);
//assert(Date.parse("2000-01-01T00:00:00+00:30"), 946686600000);
var d = new Date("2000T00:00"); // Jan 1st 2000, 0:00:00 local time
assert(typeof d === 'object' && d.toString() != 'Invalid Date');
assert((new Date('Jan 1 2000')).toISOString(),
d.toISOString());
assert((new Date('Jan 1 2000 00:00')).toISOString(),
d.toISOString());
assert((new Date('Jan 1 2000 00:00:00')).toISOString(),
d.toISOString());
assert((new Date('Jan 1 2000 00:00:00 GMT+0100')).toISOString(),
'1999-12-31T23:00:00.000Z');
assert((new Date('Jan 1 2000 00:00:00 GMT+0200')).toISOString(),
'1999-12-31T22:00:00.000Z');
assert((new Date('Sat Jan 1 2000')).toISOString(),
d.toISOString());
assert((new Date('Sat Jan 1 2000 00:00')).toISOString(),
d.toISOString());
assert((new Date('Sat Jan 1 2000 00:00:00')).toISOString(),
d.toISOString());
assert((new Date('Sat Jan 1 2000 00:00:00 GMT+0100')).toISOString(),
'1999-12-31T23:00:00.000Z');
assert((new Date('Sat Jan 1 2000 00:00:00 GMT+0200')).toISOString(),
'1999-12-31T22:00:00.000Z');
var d = new Date(1506098258091);
assert(d.toISOString(), "2017-09-22T16:37:38.091Z");
d.setUTCHours(18, 10, 11);
assert(d.toISOString(), "2017-09-22T18:10:11.091Z");
var a = Date.parse(d.toISOString());
assert((new Date(a)).toISOString(), d.toISOString());
assert((new Date("2020-01-01T01:01:01.123Z")).toISOString(),
"2020-01-01T01:01:01.123Z");
/* implementation defined behavior */
assert((new Date("2020-01-01T01:01:01.1Z")).toISOString(),
"2020-01-01T01:01:01.100Z");
assert((new Date("2020-01-01T01:01:01.12Z")).toISOString(),
"2020-01-01T01:01:01.120Z");
assert((new Date("2020-01-01T01:01:01.1234Z")).toISOString(),
"2020-01-01T01:01:01.123Z");
assert((new Date("2020-01-01T01:01:01.12345Z")).toISOString(),
"2020-01-01T01:01:01.123Z");
assert((new Date("2020-01-01T01:01:01.1235Z")).toISOString(),
"2020-01-01T01:01:01.123Z");
assert((new Date("2020-01-01T01:01:01.9999Z")).toISOString(),
"2020-01-01T01:01:01.999Z");
assert(Date.UTC(2017), 1483228800000);
assert(Date.UTC(2017, 9), 1506816000000);
assert(Date.UTC(2017, 9, 22), 1508630400000);
assert(Date.UTC(2017, 9, 22, 18), 1508695200000);
assert(Date.UTC(2017, 9, 22, 18, 10), 1508695800000);
assert(Date.UTC(2017, 9, 22, 18, 10, 11), 1508695811000);
assert(Date.UTC(2017, 9, 22, 18, 10, 11, 91), 1508695811091);
assert(Date.UTC(NaN), NaN);
assert(Date.UTC(2017, NaN), NaN);
assert(Date.UTC(2017, 9, NaN), NaN);
assert(Date.UTC(2017, 9, 22, NaN), NaN);
assert(Date.UTC(2017, 9, 22, 18, NaN), NaN);
assert(Date.UTC(2017, 9, 22, 18, 10, NaN), NaN);
assert(Date.UTC(2017, 9, 22, 18, 10, 11, NaN), NaN);
assert(Date.UTC(2017, 9, 22, 18, 10, 11, 91, NaN), 1508695811091);
// TODO: Fix rounding errors on Windows/Cygwin.
if (!(typeof os !== 'undefined' && ['win32', 'cygwin'].includes(os.platform))) {
// from test262/test/built-ins/Date/UTC/fp-evaluation-order.js
assert(Date.UTC(1970, 0, 1, 80063993375, 29, 1, -288230376151711740), 29312,
'order of operations / precision in MakeTime');
assert(Date.UTC(1970, 0, 213503982336, 0, 0, 0, -18446744073709552000), 34447360,
'precision in MakeDate');
}
//assert(Date.UTC(2017 - 1e9, 9 + 12e9), 1506816000000); // node fails this
assert(Date.UTC(2017, 9, 22 - 1e10, 18 + 24e10), 1508695200000);
assert(Date.UTC(2017, 9, 22, 18 - 1e10, 10 + 60e10), 1508695800000);
assert(Date.UTC(2017, 9, 22, 18, 10 - 1e10, 11 + 60e10), 1508695811000);
assert(Date.UTC(2017, 9, 22, 18, 10, 11 - 1e12, 91 + 1000e12), 1508695811091);
}
function test_regexp()
{
var a, str;
str = "abbbbbc";
a = /(b+)c/.exec(str);
assert(a[0], "bbbbbc");
assert(a[1], "bbbbb");
assert(a.index, 1);
assert(a.input, str);
a = /(b+)c/.test(str);
assert(a, true);
assert(/\x61/.exec("a")[0], "a");
assert(/\u0061/.exec("a")[0], "a");
assert(/\ca/.exec("\x01")[0], "\x01");
assert(/\\a/.exec("\\a")[0], "\\a");
assert(/\c0/.exec("\\c0")[0], "\\c0");
a = /(\.(?=com|org)|\/)/.exec("ah.com");
assert(a.index === 2 && a[0] === ".");
a = /(\.(?!com|org)|\/)/.exec("ah.com");
assert(a, null);
a = /(?=(a+))/.exec("baaabac");
assert(a.index === 1 && a[0] === "" && a[1] === "aaa");
a = /(z)((a+)?(b+)?(c))*/.exec("zaacbbbcac");
assert(a, ["zaacbbbcac","z","ac","a",,"c"]);
a = eval("/\0a/");
assert(a.toString(), "/\0a/");
assert(a.exec("\0a")[0], "\0a");
assert(/{1a}/.toString(), "/{1a}/");
a = /a{1+/.exec("a{11");
assert(a, ["a{11"]);
/* test zero length matches */
a = /(?:(?=(abc)))a/.exec("abc");
assert(a, ["a", "abc"]);
a = /(?:(?=(abc)))?a/.exec("abc");
assert(a, ["a", undefined]);
a = /(?:(?=(abc))){0,2}a/.exec("abc");
assert(a, ["a", undefined]);
a = /(?:|[\w])+([0-9])/.exec("123a23");
assert(a, ["123a23", "3"]);
a = /()*?a/.exec(",");
assert(a, null);
}
function test_symbol()
{
var a, b, obj, c;
a = Symbol("abc");
obj = {};
obj[a] = 2;
assert(obj[a], 2);
assert(typeof obj["abc"], "undefined");
assert(String(a), "Symbol(abc)");
b = Symbol("abc");
assert(a == a);
assert(a === a);
assert(a != b);
assert(a !== b);
b = Symbol.for("abc");
c = Symbol.for("abc");
assert(b === c);
assert(b !== a);
assert(Symbol.keyFor(b), "abc");
assert(Symbol.keyFor(a), undefined);
a = Symbol("aaa");
assert(a.valueOf(), a);
assert(a.toString(), "Symbol(aaa)");
b = Object(a);
assert(b.valueOf(), a);
assert(b.toString(), "Symbol(aaa)");
}
function test_map()
{
var a, i, n, tab, o, v;
n = 1000;
a = new Map();
for (var i = 0; i < n; i++) {
a.set(i, i);
}
a.set(-2147483648, 1);
assert(a.get(-2147483648), 1);
assert(a.get(-2147483647 - 1), 1);
assert(a.get(-2147483647.5 - 0.5), 1);
a.set(1n, 1n);
assert(a.get(1n), 1n);
assert(a.get(2n**1000n - (2n**1000n - 1n)), 1n);
a = new Map();
tab = [];
for(i = 0; i < n; i++) {
v = { };
o = { id: i };
tab[i] = [o, v];
a.set(o, v);
}
assert(a.size, n);
for(i = 0; i < n; i++) {
assert(a.get(tab[i][0]), tab[i][1]);
}
i = 0;
a.forEach(function (v, o) {
assert(o, tab[i++][0]);
assert(a.has(o));
assert(a.delete(o));
assert(!a.has(o));
});
assert(a.size, 0);
}
function test_weak_map()
{
var a, i, n, tab, o, v, n2;
a = new WeakMap();
n = 10;
tab = [];
for(i = 0; i < n; i++) {
v = { };
o = { id: i };
tab[i] = [o, v];
a.set(o, v);
}
o = null;
n2 = n >> 1;
for(i = 0; i < n2; i++) {
a.delete(tab[i][0]);
}
for(i = n2; i < n; i++) {
tab[i][0] = null; /* should remove the object from the WeakMap too */
}
/* the WeakMap should be empty here */
// test symbol as key
var symbol_key = Symbol("key");
a = new WeakMap();
a.set(symbol_key, "hello");
assert(a.has(symbol_key), true);
assert(a.get(symbol_key), "hello");
symbol_key = undefined;
assert(a.has(symbol_key), false);
assert(a.get(symbol_key), undefined);
}
function test_weak_ref()
{
var obj = {};
var ref = new WeakRef(obj);
var ref2 = new WeakRef(obj);
assert(ref.deref(), obj);
assert(ref2.deref(), obj);
obj = undefined;
/* weak ref should be released */
assert(ref.deref(), undefined);
assert(ref2.deref(), undefined);
// symbol
var sym = Symbol("sym")
var ref3 = new WeakRef(sym);
assert(ref3.deref(), sym);
new WeakRef(Symbol.hasInstance);
sym = undefined;
assert(ref3.deref(), undefined);
function should_fail(block) {
try {
block()
} catch (e) {
return
}
throw_error("weak ref should throw exception, but it not");
}
should_fail(() => new WeakRef("string"));
should_fail(() => new WeakRef(/* number */0));
should_fail(() => new WeakRef(/* registered symbol */ Symbol.for("test")));
/* cyclic ref */
obj = {};
ref = new WeakRef(obj);
obj["x"] = ref;
}
function test_generator()
{
function *f() {
var ret;
yield 1;
ret = yield 2;
assert(ret, "next_arg");
return 3;
}
function *f2() {
yield 1;
yield 2;
return "ret_val";
}
function *f1() {
var ret = yield *f2();
assert(ret, "ret_val");
return 3;
}
function *f3() {
var ret;
/* test stack consistency with nip_n to handle yield return +
* finally clause */
try {
ret = 2 + (yield 1);
} catch(e) {
} finally {
ret++;
}
return ret;
}
var g, v;
g = f();
v = g.next();
assert(v.value === 1 && v.done === false);
v = g.next();
assert(v.value === 2 && v.done === false);
v = g.next("next_arg");
assert(v.value === 3 && v.done === true);
v = g.next();
assert(v.value === undefined && v.done === true);
g = f1();
v = g.next();
assert(v.value === 1 && v.done === false);
v = g.next();
assert(v.value === 2 && v.done === false);
v = g.next();
assert(v.value === 3 && v.done === true);
v = g.next();
assert(v.value === undefined && v.done === true);
g = f3();
v = g.next();
assert(v.value === 1 && v.done === false);
v = g.next(3);
assert(v.value === 6 && v.done === true);
}
test();
test_function();
test_enum();
test_array();
test_string();
test_math();
test_number();
test_eval();
test_typed_array();
test_json();
test_date();
test_regexp();
test_symbol();
test_map();
test_weak_map();
test_weak_ref();
test_generator();
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