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import { describe, expect, it } from "vitest";
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import { createRequestGuard } from "@/client/lib/request-guard";
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describe("createRequestGuard", () => {
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  it("treats the newest request as current", () => {
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    const epochRef = { current: 0 };
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    const activeRef = { current: true };
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    const request = createRequestGuard(epochRef, activeRef);
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    expect(request.isCurrent()).toBe(true);
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  });
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  it("invalidates older requests after navigation starts a newer request", () => {
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    const epochRef = { current: 0 };
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    const activeRef = { current: true };
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    const first = createRequestGuard(epochRef, activeRef);
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    const second = createRequestGuard(epochRef, activeRef);
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    expect(first.isCurrent()).toBe(false);
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    expect(second.isCurrent()).toBe(true);
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  });
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  it("invalidates requests on cleanup", () => {
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    const epochRef = { current: 0 };
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    const activeRef = { current: true };
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    const request = createRequestGuard(epochRef, activeRef);
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    request.cancel();
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    expect(request.isCurrent()).toBe(false);
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  });
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  it("invalidates requests after the caller becomes inactive", () => {
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    const epochRef = { current: 0 };
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    const activeRef = { current: true };
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    const request = createRequestGuard(epochRef, activeRef);
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    activeRef.current = false;
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    expect(request.isCurrent()).toBe(false);
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  });
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});