ladybird/Libraries/LibJS/Tests/Reflect.getOwnPropertyDescriptor.js
2020-05-01 16:54:01 +02:00

35 lines
1 KiB
JavaScript

load("test-common.js");
try {
assert(Reflect.getOwnPropertyDescriptor.length === 2);
[null, undefined, "foo", 123, NaN, Infinity].forEach(value => {
assertThrowsError(() => {
Reflect.getOwnPropertyDescriptor(value);
}, {
error: TypeError,
message: "First argument of Reflect.getOwnPropertyDescriptor() must be an object"
});
});
assert(Reflect.getOwnPropertyDescriptor({}) === undefined);
assert(Reflect.getOwnPropertyDescriptor({}, "foo") === undefined);
var o = { foo: "bar" };
var d = Reflect.getOwnPropertyDescriptor(o, "foo");
assert(d.value === "bar");
assert(d.writable === true);
assert(d.enumerable === true);
assert(d.configurable === true);
var a = [];
d = Reflect.getOwnPropertyDescriptor(a, "length");
assert(d.value === 0);
assert(d.writable === true);
assert(d.enumerable === false);
assert(d.configurable === false);
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}