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Libraries: Move to Userland/Libraries/

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This commit is contained in:
Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
1857 changed files with 266 additions and 274 deletions
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67
Libraries/LibJS/Tests/builtins/Object/Object.preventExtensions.js
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@ -1,67 +0,0 @@
describe("correct behavior", () => {
test("non-object arguments", () => {
expect(Object.preventExtensions()).toBeUndefined();
expect(Object.preventExtensions(undefined)).toBeUndefined();
expect(Object.preventExtensions(null)).toBeNull();
expect(Object.preventExtensions(true)).toBeTrue();
expect(Object.preventExtensions(6)).toBe(6);
expect(Object.preventExtensions("test")).toBe("test");
let s = Symbol();
expect(Object.preventExtensions(s)).toBe(s);
});
test("basic functionality", () => {
let o = { foo: "foo" };
expect(o.foo).toBe("foo");
o.bar = "bar";
expect(o.bar).toBe("bar");
expect(Object.preventExtensions(o)).toBe(o);
expect(o.foo).toBe("foo");
expect(o.bar).toBe("bar");
o.baz = "baz";
expect(o.baz).toBeUndefined();
});
test("modifying existing properties", () => {
const o = { foo: "bar" };
Object.preventExtensions(o);
o.foo = "baz";
expect(o.foo).toBe("baz");
});
test("deleting existing properties", () => {
const o = { foo: "bar" };
Object.preventExtensions(o);
delete o.foo;
expect(o).not.toHaveProperty("foo");
});
});
describe("errors", () => {
test("defining a property on a non-extensible object", () => {
let o = {};
Object.preventExtensions(o);
expect(() => {
Object.defineProperty(o, "baz", { value: "baz" });
}).toThrowWithMessage(TypeError, "Cannot define property baz on non-extensible object");
expect(o.baz).toBeUndefined();
});
test("putting property on a non-extensible object", () => {
let o = {};
Object.preventExtensions(o);
expect(() => {
"use strict";
o.foo = "foo";
}).toThrowWithMessage(TypeError, "Cannot define property foo on non-extensible object");
expect((o.foo = "foo")).toBe("foo");
expect(o.foo).toBeUndefined();
});
});