112 lines
2.4 KiB
JavaScript
112 lines
2.4 KiB
JavaScript
describe("correct behavior", () => {
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test("basic functionality", () => {
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class A {
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static get x() {
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return this._x;
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}
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static set x(value) {
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this._x = value * 2;
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}
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}
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expect(A.x).toBeUndefined();
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expect(A).not.toHaveProperty("_x");
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A.x = 3;
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expect(A.x).toBe(6);
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expect(A).toHaveProperty("_x", 6);
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});
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test("name", () => {
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class A {
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static set x(v) {}
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}
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const d = Object.getOwnPropertyDescriptor(A, "x");
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expect(d.set.name).toBe("set x");
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});
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test("extended name syntax", () => {
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const s = Symbol("foo");
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class A {
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static set "method with space"(value) {
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this.a = value;
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}
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static set 12(value) {
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this.b = value;
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}
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static set [`he${"llo"}`](value) {
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this.c = value;
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}
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static set [s](value) {
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this.d = value;
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}
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}
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A["method with space"] = 1;
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A[12] = 2;
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A.hello = 3;
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A[s] = 4;
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expect(A.a).toBe(1);
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expect(A.b).toBe(2);
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expect(A.c).toBe(3);
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expect(A.d).toBe(4);
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});
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test("inherited static setter", () => {
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class Parent {
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static get x() {
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return this._x;
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}
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static set x(value) {
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this._x = value * 2;
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}
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}
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class Child extends Parent {}
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expect(Child.x).toBeUndefined();
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Child.x = 10;
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expect(Child.x).toBe(20);
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});
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test("inherited static setter overriding", () => {
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class Parent {
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static get x() {
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return this._x;
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}
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static set x(value) {
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this._x = value * 2;
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}
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}
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class Child extends Parent {
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static get x() {
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return this._x;
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}
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static set x(value) {
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this._x = value * 3;
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}
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}
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expect(Child.x).toBeUndefined();
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Child.x = 10;
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expect(Child.x).toBe(30);
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});
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});
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describe("errors", () => {
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test('"set static" is a syntax error', () => {
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expect(`
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class A {
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set static foo(value) {}
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}`).not.toEval();
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});
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});
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