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

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

    expect(A.x).toBe(10);
    expect(new A()).not.toHaveProperty("x");
  });

  test("name", () => {
    class A {
      static get x() {}
    }

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

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

      static get 12() {
        return 2;
      }

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

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

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

    class Child extends Parent {}

    expect(Parent.x).toBe(3);
    expect(Child.x).toBe(3);
  });

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

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

    expect(Parent.x).toBe(3);
    expect(Child.x).toBe(10);
  });
});

describe("errors", () => {
  test('"get static" is a syntax error', () => {
    expect(`
    class A {
      get static foo() {}
    }`).not.toEval();
  });
});