ladybird/Libraries/LibJS/Tests/classes/class-getters.js

test("basic functionality", () => {
  class A {
    get x() {
      return 10;
    }
  }

  expect(A).not.toHaveProperty("x");
  expect(new A().x).toBe(10);
});
test("name", () => {
  class A {
    get x() {}
  }

  const d = Object.getOwnPropertyDescriptor(A.prototype, "x");
  expect(d.get.name).toBe("get x");
});

test("extended name syntax", () => {
  class A {
    get "method with space"() {
      return 1;
    }

    get 12() {
      return 2;
    }

    get [`he${"llo"}`]() {
      return 3;
    }
  }

  const a = new A();
  expect(a["method with space"]).toBe(1);
  expect(a[12]).toBe(2);
  expect(a.hello).toBe(3);
});

test("inherited getter", () => {
  class Parent {
    get x() {
      return 3;
    }
  }

  class Child extends Parent {}

  expect(Child).not.toHaveProperty("x");
  expect(new Child().x).toBe(3);
});

test("inherited getter overriding", () => {
  class Parent {
    get x() {
      return 3;
    }
  }

  class Child extends Parent {
    get x() {
      return 10;
    }
  }

  expect(new Child().x).toBe(10);
});