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node_modules/node-abort-controller/__tests__/abort-controller.js

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+const { AbortController } = require("../index.js");
+
+describe("AbortController", function () {
+  it("should call abort handlers once", function () {
+    const controller = new AbortController();
+    const signal = controller.signal;
+    const handler = jest.fn();
+
+    expect(signal.onabort).toBeNull();
+    expect(signal.aborted).toBe(false);
+    expect(signal.reason).toBeUndefined();
+
+    signal.onabort = jest.fn();
+    signal.addEventListener("abort", handler);
+
+    controller.abort();
+
+    expect(signal.aborted).toBe(true);
+    expect(signal.reason).toEqual(new Error("AbortError"));
+    expect(handler).toBeCalledTimes(1);
+    expect(handler).toBeCalledWith({ type: "abort", target: signal });
+    expect(signal.onabort).toBeCalledTimes(1);
+    expect(signal.onabort).toBeCalledWith({ type: "abort", target: signal });
+
+    jest.clearAllMocks();
+    controller.abort();
+
+    expect(signal.aborted).toBe(true);
+    expect(signal.reason).toEqual(new Error("AbortError"));
+    expect(handler).not.toBeCalled();
+    expect(signal.onabort).not.toBeCalled();
+  });
+
+  it("should use custom abort reason", () => {
+    const controller = new AbortController();
+    const signal = controller.signal;
+    expect(signal.aborted).toBe(false);
+    expect(signal.reason).toBeUndefined();
+
+    const customReason = new Error("Custom Reason");
+    controller.abort(customReason);
+
+    expect(signal.aborted).toBe(true);
+    expect(signal.reason).toBe(customReason);
+  });
+});