ladybird/Userland/Libraries/LibJS/Tests/builtins/Object/Object.getOwnPropertyDescriptor.js
Linus Groh 7af1d2c170 LibJS: Make Object.getOwnPropertyDescriptor() work with string indexed property
E.g. for "0" we have to contruct a PropertyName with Type::Number so it
looks in the indexed properties as expected.
2021-04-20 18:53:07 +02:00

88 lines
2.7 KiB
JavaScript

test("plain property", () => {
let o = { foo: "bar" };
expect(o).toHaveConfigurableProperty("foo");
expect(o).toHaveEnumerableProperty("foo");
expect(o).toHaveWritableProperty("foo");
expect(o).toHaveValueProperty("foo", "bar");
expect(o).not.toHaveGetterProperty("foo");
expect(o).not.toHaveSetterProperty("foo");
});
test("symbol property", () => {
let s = Symbol("foo");
let o = { [s]: "bar" };
expect(o).toHaveConfigurableProperty(s);
expect(o).toHaveEnumerableProperty(s);
expect(o).toHaveWritableProperty(s);
expect(o).toHaveValueProperty(s, "bar");
expect(o).not.toHaveGetterProperty(s);
expect(o).not.toHaveSetterProperty(s);
});
test("getter property", () => {
let o = { get foo() {} };
expect(o).toHaveConfigurableProperty("foo");
expect(o).toHaveEnumerableProperty("foo");
expect(o).not.toHaveWritableProperty("foo");
expect(o).not.toHaveValueProperty("foo");
expect(o).toHaveGetterProperty("foo");
expect(o).not.toHaveSetterProperty("foo");
});
test("setter property", () => {
let o = { set foo(_) {} };
expect(o).toHaveConfigurableProperty("foo");
expect(o).toHaveEnumerableProperty("foo");
expect(o).not.toHaveWritableProperty("foo");
expect(o).not.toHaveValueProperty("foo");
expect(o).not.toHaveGetterProperty("foo");
expect(o).toHaveSetterProperty("foo");
});
test("indexed property", () => {
let o = { 0: "foo" };
expect(o).toHaveConfigurableProperty(0);
expect(o).toHaveEnumerableProperty(0);
expect(o).toHaveWritableProperty(0);
expect(o).toHaveValueProperty(0, "foo");
expect(o).not.toHaveGetterProperty(0);
expect(o).not.toHaveSetterProperty(0);
expect(o).toHaveConfigurableProperty("0");
expect(o).toHaveEnumerableProperty("0");
expect(o).toHaveWritableProperty("0");
expect(o).toHaveValueProperty("0", "foo");
expect(o).not.toHaveGetterProperty("0");
expect(o).not.toHaveSetterProperty("0");
});
test("defined property", () => {
let o = {};
const attributes = {
enumerable: false,
writable: true,
value: 10,
};
Object.defineProperty(o, "foo", attributes);
Object.defineProperty(o, 1, attributes);
expect(o).not.toHaveConfigurableProperty("foo");
expect(o).not.toHaveEnumerableProperty("foo");
expect(o).toHaveWritableProperty("foo");
expect(o).toHaveValueProperty("foo", 10);
expect(o).not.toHaveGetterProperty("foo");
expect(o).not.toHaveSetterProperty("foo");
expect(o).not.toHaveConfigurableProperty(1);
expect(o).not.toHaveEnumerableProperty(1);
expect(o).toHaveWritableProperty(1);
expect(o).toHaveValueProperty(1, 10);
expect(o).not.toHaveGetterProperty(1);
expect(o).not.toHaveSetterProperty(1);
});