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import { describe, expect, it } from "vitest";
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import { getSharedInboxReturnTo, withSharedInboxReturnTo } from "@/client/lib/shared-inbox-navigation";
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describe("shared inbox navigation helpers", () => {
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  it("reads a valid in-app return target from history state", () => {
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    expect(getSharedInboxReturnTo({ blandSharedInboxReturnTo: "/workspace/page?x=1#hash" })).toBe(
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      "/workspace/page?x=1#hash",
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    );
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  });
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  it("rejects missing or unsafe return targets", () => {
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    expect(getSharedInboxReturnTo(null)).toBeNull();
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    expect(getSharedInboxReturnTo({ blandSharedInboxReturnTo: "https://example.com" })).toBeNull();
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    expect(getSharedInboxReturnTo({ blandSharedInboxReturnTo: "workspace/page" })).toBeNull();
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  });
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  it("preserves existing router state when adding a return target", () => {
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    expect(withSharedInboxReturnTo({ __TSR_index: 3, foo: "bar" }, "/shared")).toEqual({
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      __TSR_index: 3,
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      blandSharedInboxReturnTo: "/shared",
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      foo: "bar",
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    });
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  });
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});