69 lines
1.2 KiB
JavaScript
69 lines
1.2 KiB
JavaScript
// This file must not be formatted by prettier. Make sure your IDE
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// respects the .prettierignore file!
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test("basic functionality", () => {
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const A = class {
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constructor(x) {
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this.x = x;
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}
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getX() {
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return this.x * 2;
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}
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};
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expect(new A(10).getX()).toBe(20);
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});
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test("inline instantiation", () => {
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const a = new class {
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constructor() {
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this.x = 10;
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}
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getX() {
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return this.x * 2;
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}
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};
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expect(a.getX()).toBe(20);
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});
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test("inline instantiation with argument", () => {
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const a = new class {
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constructor(x) {
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this.x = x;
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}
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getX() {
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return this.x * 2;
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}
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}(10);
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expect(a.getX()).toBe(20);
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});
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test("extending class expressions", () => {
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class A extends class {
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constructor(x) {
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this.x = x;
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}
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} {
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constructor(y) {
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super(y);
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this.y = y * 2;
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}
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};
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const a = new A(10);
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expect(a.x).toBe(10);
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expect(a.y).toBe(20);
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});
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test("class expression name", () => {
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let A = class {}
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expect(A.name).toBe("A");
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let B = class C {}
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expect(B.name).toBe("C");
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});
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