expect(second.status).toBe("migrated");

const firstBackup = first.details?.backupPath;

const secondBackup = second.details?.backupPath;

expect(firstBackup).toEqual(expect.stringContaining("AGENTS.md"));

expect(secondBackup).toEqual(expect.stringContaining("AGENTS.md"));

if (typeof firstBackup !== "string" || typeof secondBackup !== "string") {

throw new Error("expected both migration results to include backup paths");

}

expect(path.basename(firstBackup)).toBe("AGENTS.md");

expect(path.basename(secondBackup)).toBe("AGENTS.md");

expect(firstBackup).not.toBe(secondBackup);

await expect(fs.readFile(firstBackup as string, "utf8")).resolves.toBe("old one");

await expect(fs.readFile(secondBackup as string, "utf8")).resolves.toBe("old two");

await expect(fs.readFile(firstBackup, "utf8")).resolves.toBe("old one");

await expect(fs.readFile(secondBackup, "utf8")).resolves.toBe("old two");

});

});