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- const { AbortController, AbortSignal } = require("../index.js");
- describe("AbortSignal", function () {
- it("should implement EventTarget", function () {
- const controller = new AbortController();
- const signal = controller.signal;
- const unusedHandler = jest.fn();
- const handler = jest.fn();
- const event = { type: "abort", target: signal };
- signal.onabort = jest.fn();
- signal.addEventListener("abort", handler);
- signal.addEventListener("abort", unusedHandler);
- signal.removeEventListener("abort", unusedHandler);
- signal.dispatchEvent("abort", event);
- expect(unusedHandler).not.toBeCalled();
- expect(handler).toBeCalledTimes(1);
- expect(handler).toBeCalledWith(event);
- expect(signal.onabort).toBeCalledTimes(1);
- expect(signal.onabort).toBeCalledWith(event);
- jest.clearAllMocks();
- signal.dispatchEvent("abort", event);
- expect(unusedHandler).not.toBeCalled();
- expect(handler).toBeCalledTimes(1);
- expect(handler).toBeCalledWith(event);
- expect(signal.onabort).toBeCalledTimes(1);
- expect(signal.onabort).toBeCalledWith(event);
- jest.clearAllMocks();
- signal.dispatchEvent("unknown", event);
- expect(unusedHandler).not.toBeCalled();
- expect(handler).not.toBeCalled();
- expect(signal.onabort).not.toBeCalled();
- });
- it("should implement throwIfAborted", function () {
- const controller = new AbortController();
- const signal = controller.signal;
- expect(() => signal.throwIfAborted()).not.toThrowError();
- controller.abort();
- expect(() => signal.throwIfAborted()).toThrowError(new Error("AbortError"));
- });
- });
- describe("Static methods", () => {
- jest.useFakeTimers();
- jest.spyOn(global, "setTimeout");
- it("should implement abort", function () {
- const signal = AbortSignal.abort();
- expect(signal.aborted).toBe(true);
- expect(signal.reason).toEqual(new Error("AbortError"));
- });
- it("should implement timeout", function () {
- const signal = AbortSignal.timeout(1000);
- expect(setTimeout).toHaveBeenCalledTimes(1);
- expect(setTimeout).toHaveBeenLastCalledWith(expect.any(Function), 1000);
- expect(signal.aborted).toBe(false);
- expect(signal.reason).toBeUndefined();
- jest.runAllTimers();
- expect(signal.aborted).toBe(true);
- expect(signal.reason).toEqual(new Error("TimeoutError"));
- });
- });
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