88 lines
1.8 KiB
JavaScript
88 lines
1.8 KiB
JavaScript
test("basic functionality", () => {
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class A {
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#number = 3;
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getNumber() {
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return this.#number;
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}
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#string = "foo";
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getString() {
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return this.#string;
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}
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#uninitialized;
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getUninitialized() {
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return this.#uninitialized;
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}
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}
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const a = new A();
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expect(a.getNumber()).toBe(3);
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expect(a.getString()).toBe("foo");
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expect(a.getUninitialized()).toBeUndefined();
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expect("a.#number").not.toEval();
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expect("a.#string").not.toEval();
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expect("a.#uninitialized").not.toEval();
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});
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test("initializer has correct this value", () => {
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class A {
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#thisVal = this;
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getThisVal() {
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return this.#thisVal;
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}
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#thisName = this.#thisVal;
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getThisName() {
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return this.#thisName;
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}
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}
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const a = new A();
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expect(a.getThisVal()).toBe(a);
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expect(a.getThisName()).toBe(a);
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});
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test("static fields", () => {
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class A {
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static #simple = 1;
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static getStaticSimple() {
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return this.#simple;
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}
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static #thisVal = this;
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static #thisName = this.name;
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static #thisVal2 = this.#thisVal;
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static getThisVal() {
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return this.#thisVal;
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}
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static getThisName() {
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return this.#thisName;
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}
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static getThisVal2() {
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return this.#thisVal2;
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}
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}
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expect(A.getStaticSimple()).toBe(1);
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expect(A.getThisVal()).toBe(A);
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expect(A.getThisName()).toBe("A");
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expect(A.getThisVal2()).toBe(A);
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expect("A.#simple").not.toEval();
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});
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test("cannot have static and non static field with the same description", () => {
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expect("class A { static #simple; #simple; }").not.toEval();
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});
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