});

it("keeps the override bound to the matching hostname only", () => {

const originalLookup = vi.fn(

const originalLookupMock = vi.fn(

(_hostname: string, callback: (err: null, address: string, family: number) => void) => {

callback(null, "93.184.216.34", 4);

},

) as unknown as PinnedHostname["lookup"];

);

const originalLookup = originalLookupMock as unknown as PinnedHostname["lookup"];

const lookup = createDispatcherWithPinnedOverride(originalLookup);

const callback = vi.fn();

lookup?.("example.com", callback);

expect(originalLookup).toHaveBeenCalledWith("example.com", expect.any(Function));

const originalLookupCall = originalLookupMock.mock.calls[0];

expect(originalLookupCall?.[0]).toBe("example.com");

expect(typeof originalLookupCall?.[1]).toBe("function");

expect(callback).toHaveBeenCalledWith(null, "93.184.216.34", 4);

});