ladybird/Libraries/LibJS/Tests/Number.js
2020-05-02 20:41:31 +02:00

39 lines
1.3 KiB
JavaScript

load("test-common.js");
try {
assert(Number.length === 1);
assert(Number.name === "Number");
assert(Number.prototype.length === undefined);
assert(typeof Number() === "number");
assert(typeof new Number() === "object");
assert(Number() === 0);
assert(new Number().valueOf() === 0);
assert(Number("42") === 42);
assert(new Number("42").valueOf() === 42);
assert(Number(null) === 0);
assert(new Number(null).valueOf() === 0);
assert(Number(true) === 1);
assert(new Number(true).valueOf() === 1);
assert(Number("Infinity") === Infinity);
assert(new Number("Infinity").valueOf() === Infinity);
assert(Number("+Infinity") === Infinity);
assert(new Number("+Infinity").valueOf() === Infinity);
assert(Number("-Infinity") === -Infinity);
assert(new Number("-Infinity").valueOf() === -Infinity);
assert(isNaN(Number(undefined)));
assert(isNaN(new Number(undefined).valueOf()));
assert(isNaN(Number({})));
assert(isNaN(new Number({}).valueOf()));
assert(isNaN(Number({a: 1})));
assert(isNaN(new Number({a: 1}).valueOf()));
assert(isNaN(Number([1, 2, 3])));
assert(isNaN(new Number([1, 2, 3]).valueOf()));
assert(isNaN(Number("foo")));
assert(isNaN(new Number("foo").valueOf()));
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e.message);
}