req-cli 0.5.0-rc.6

// Dedicated req_NNNN_* tests for behaviours that were implemented and genuine
// but lacked a named test, so `reverify --by-tests` could not re-anchor them.
// Writing real tests both fills the coverage gap and makes future refactors
// (e.g. the validate/verify terminology cleanup) cheaply re-anchorable.
mod common;
use common::{stderr, stdout, Sandbox};
use std::process::Command;

fn git(dir: &std::path::Path, args: &[&str]) {
    let _ = Command::new("git").current_dir(dir).args(args).output();
}

/// Run req with cwd = the sandbox (so git HEAD and "." resolve there).
fn run_in(s: &Sandbox, args: &[&str]) -> std::process::Output {
    let mut full: Vec<String> = vec!["--file".into(), s.path().to_str().unwrap().into()];
    full.extend(args.iter().map(|a| a.to_string()));
    Command::new(env!("CARGO_BIN_EXE_req"))
        .current_dir(s.dir.path())
        .args(&full)
        .env_remove("REQ_FILE")
        .output()
        .expect("invoke req")
}

/// A git-backed sandbox with one Implemented requirement; returns it + HEAD sha.
fn implemented_in_git() -> (Sandbox, String) {
    let s = Sandbox::new();
    let dir = s.dir.path();
    git(dir, &["init", "-q", "-b", "main"]);
    git(dir, &["config", "user.email", "t@example.com"]);
    git(dir, &["config", "user.name", "Tester"]);
    git(dir, &["commit", "-q", "-m", "init", "--allow-empty"]);
    s.init("p");
    let _ = run_in(
        &s,
        &[
            "add",
            "-t",
            "Halt the line cleanly",
            "-s",
            "The system shall halt the line.",
            "-r",
            "line safety constraint",
            "-k",
            "functional",
            "-a",
            "line halts within a second",
        ],
    );
    for st in ["proposed", "approved", "implemented"] {
        let _ = run_in(
            &s,
            &["update", "REQ-0001", "--status", st, "--reason", "advance"],
        );
    }
    let out = Command::new("git")
        .current_dir(dir)
        .args(["rev-parse", "HEAD"])
        .output()
        .unwrap();
    let sha = String::from_utf8_lossy(&out.stdout).trim().to_string();
    (s, sha)
}

fn add_one(s: &Sandbox) {
    let o = s.run(&[
        "add",
        "-t",
        "Stop on demand cleanly",
        "-s",
        "The system shall stop on operator demand.",
        "-r",
        "operator safety constraint",
        "-k",
        "functional",
        "-p",
        "must",
        "-a",
        "process halts within one second",
    ]);
    assert!(o.status.success(), "add: {}", stderr(&o));
}

/// REQ-0084: the status state machine rejects irregular transitions unless
/// --force is supplied, and the error names the alternative path.
#[test]
fn req_0084_status_machine_rejects_irregular_transitions() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s);
    // AC1: draft -> verified fails without --force; error names the path.
    let o = s.run(&[
        "update",
        "REQ-0001",
        "--status",
        "verified",
        "--reason",
        "try to skip ahead",
    ]);
    assert!(!o.status.success(), "draft->verified should fail");
    let e = stderr(&o).to_lowercase();
    assert!(
        e.contains("irregular") && e.contains("--force"),
        "error should name the override path: {}",
        stderr(&o)
    );
    // AC2: draft -> approved succeeds (carve-out).
    assert!(s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "approved",
            "--reason",
            "reviewed and approved"
        ])
        .status
        .success());
    // AC3: active -> obsolete succeeds.
    assert!(s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "obsolete",
            "--reason",
            "superseded by another"
        ])
        .status
        .success());
    // AC5: obsolete -> draft requires --force.
    assert!(!s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "draft",
            "--reason",
            "revive this please"
        ])
        .status
        .success());
    assert!(s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "draft",
            "--reason",
            "revive with the force flag",
            "--force"
        ])
        .status
        .success());
    // AC4: verified -> implemented requires --force (reach verified via force).
    assert!(s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "verified",
            "--reason",
            "force to verified for test",
            "--force"
        ])
        .status
        .success());
    assert!(!s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "implemented",
            "--reason",
            "demote it back"
        ])
        .status
        .success());
}

/// REQ-0090: REQ-ID lookups normalise across case and zero-pad forms, and a
/// near-miss id suggests the nearest existing one; a far miss does not.
#[test]
fn req_0090_id_resolution_normalises_and_suggests() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s);
    // AC1: normalised forms resolve.
    for form in ["req-1", "REQ-1", "req-0001", "REQ-0001"] {
        assert!(
            s.run(&["show", form]).status.success(),
            "{} should resolve",
            form
        );
    }
    // AC2: a near-miss id suggests the nearest existing id.
    let o = s.run(&["show", "REQ-0003"]);
    assert!(!o.status.success());
    assert!(
        stderr(&o).contains("did you mean REQ-0001"),
        "near-miss hint: {}",
        stderr(&o)
    );
    // AC3: a far miss returns a plain error with no suggestion.
    let o2 = s.run(&["show", &format!("REQ-{}", 9999)]);
    assert!(!o2.status.success());
    assert!(
        stderr(&o2).contains("no such requirement") && !stderr(&o2).contains("did you mean"),
        "far-miss plain error: {}",
        stderr(&o2)
    );
}

/// REQ-0094: status values are accepted in any case and folded to canonical.
#[test]
fn req_0094_status_value_case_insensitive() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s);
    assert!(s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "Approved",
            "--reason",
            "case-insensitive approve"
        ])
        .status
        .success());
    assert!(s
        .run(&[
            "update",
            "REQ-0001",
            "--status",
            "IMPLEMENTED",
            "--reason",
            "case-insensitive implement"
        ])
        .status
        .success());
    assert!(
        stdout(&s.run(&["show", "REQ-0001"]))
            .to_lowercase()
            .contains("implemented"),
        "status folds to canonical lowercase"
    );
}

/// REQ-0091: `repair --force` re-signs a hand-edited file even with conformance
/// errors; without --force it refuses; afterwards conform surfaces the errors.
#[test]
fn req_0091_repair_force_resigns_despite_errors() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s);
    // Hand-edit: break integrity AND introduce a conformance error.
    let path = s.path();
    let body = std::fs::read_to_string(&path)
        .unwrap()
        .replace("The system shall stop on operator demand.", "short");
    std::fs::write(&path, body).unwrap();
    // AC1: repair without --force refuses on conformance errors.
    assert!(!s.run(&["repair", "--confirm-direct-edit"]).status.success());
    // AC2: repair --force re-signs and warns errors remain.
    let o = s.run(&["repair", "--confirm-direct-edit", "--force"]);
    assert!(o.status.success(), "repair --force: {}", stderr(&o));
    let out = format!("{}{}", stdout(&o), stderr(&o)).to_lowercase();
    assert!(
        out.contains("error") && out.contains("conform"),
        "warns + points to conform: {}",
        out
    );
    // AC3: the file now loads and conform reports the surviving error.
    let c = s.run(&["conform"]);
    assert!(stdout(&c).to_lowercase().contains("error") || !c.status.success());
}

/// REQ-0101: `req lint` audits quality dimensions in markdown and JSON.
#[test]
fn req_0101_lint_audits_quality_dimensions() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s);
    // lint quality findings count ACTIVE requirements; advance out of draft.
    s.run(&[
        "update",
        "REQ-0001",
        "--status",
        "approved",
        "--reason",
        "make active for lint",
    ]);
    // Scan the (markerless) sandbox dir so the source-marker finding populates,
    // rather than the surrounding repo whose source carries REQ markers.
    let dir = s.dir.path().to_str().unwrap().to_string();
    let md = stdout(&s.run(&["lint", "--path", &dir]));
    assert!(md.contains("Quality observations"), "md: {}", md);
    for needle in [
        "no source marker",
        "Rationales under",
        "acceptance criterion",
        "no test record",
    ] {
        assert!(
            md.contains(needle),
            "lint markdown missing '{}':\n{}",
            needle,
            md
        );
    }
    let js = s.run(&["lint", "--path", &dir, "--json"]);
    assert!(js.status.success());
    let v: serde_json::Value = serde_json::from_str(&stdout(&js)).expect("lint json");
    assert!(
        v["quality"].is_object() && v["conformance"].is_object(),
        "json shape: {}",
        stdout(&js)
    );
}

/// REQ-0107: lint excludes inspection-only requirements from the
/// no-test-record finding (but other findings still apply).
#[test]
fn req_0107_lint_excludes_inspection_only_from_no_test() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s); // REQ-0001: ordinary, no test record.
    let o = s.run(&[
        "add",
        "-t",
        "Inspect only requirement here",
        "-s",
        "The system shall be inspected only.",
        "-r",
        "inspection rationale phrase",
        "-k",
        "functional",
        "-p",
        "could",
        "-a",
        "passes visual inspection",
        "--tag",
        "inspection-only",
    ]);
    assert!(o.status.success(), "add inspection-only: {}", stderr(&o));
    // The no-test-record finding counts ACTIVE requirements; advance both.
    s.run(&[
        "update",
        "REQ-0001",
        "--status",
        "approved",
        "--reason",
        "make active for lint",
    ]);
    s.run(&[
        "update",
        "REQ-0002",
        "--status",
        "approved",
        "--reason",
        "make active for lint",
    ]);
    let v: serde_json::Value = serde_json::from_str(&stdout(&s.run(&["lint", "--json"]))).unwrap();
    let ntr: Vec<String> = v["quality"]["no_test_record"]
        .as_array()
        .unwrap()
        .iter()
        .map(|x| x.as_str().unwrap().to_string())
        .collect();
    assert!(
        ntr.contains(&"REQ-0001".to_string()),
        "ordinary no-test req listed: {:?}",
        ntr
    );
    assert!(
        !ntr.contains(&"REQ-0002".to_string()),
        "inspection-only excluded: {:?}",
        ntr
    );
}

/// REQ-0095: re-adding a title similar to a recently-obsolete requirement warns
/// (naming the obsolete id) but does not block the add.
#[test]
fn req_0095_warns_on_readd_similar_to_recent_obsolete() {
    let s = Sandbox::new();
    s.init("p");
    assert!(s
        .run(&[
            "add",
            "-t",
            "Stop the motor on demand",
            "-s",
            "The system shall stop the motor on demand.",
            "-r",
            "operator safety constraint",
            "-k",
            "functional",
            "-p",
            "must",
            "-a",
            "motor halts within one second",
        ])
        .status
        .success());
    s.run(&[
        "update",
        "REQ-0001",
        "--status",
        "obsolete",
        "--reason",
        "superseded by a newer approach",
    ]);
    let o = s.run(&[
        "add",
        "-t",
        "Stop the motor on demand",
        "-s",
        "The system shall stop the motor immediately on demand.",
        "-r",
        "operator safety constraint here",
        "-k",
        "functional",
        "-p",
        "must",
        "-a",
        "motor halts within one second flat",
    ]);
    // AC2: the add is not blocked — a fresh Draft is created.
    assert!(
        o.status.success(),
        "add must not be blocked: {}",
        stderr(&o)
    );
    let out = format!("{}{}", stdout(&o), stderr(&o));
    // AC1: the warning names the obsolete id.
    assert!(
        out.contains("similar") && out.contains("REQ-0001"),
        "warn names obsolete id:\n{}",
        out
    );
    assert!(
        out.contains("Added REQ-0002"),
        "draft still created:\n{}",
        out
    );
}

/// REQ-0118: a --dry-run invocation never writes project.req — two consecutive
/// dry-runs leave the file byte-identical and add no requirements.
#[test]
fn req_0118_dry_run_never_persists() {
    let s = Sandbox::new();
    s.init("p");
    let doc = s.dir.path().join("reqs.md");
    std::fs::write(
        &doc,
        "# Reqs\n\n## The system shall log every error to disk\n\nRationale: auditability.\n",
    )
    .unwrap();
    let before = std::fs::read(s.path()).unwrap();
    for _ in 0..2 {
        let _ = s.run(&[
            "import",
            "--format",
            "markdown",
            "--dry-run",
            doc.to_str().unwrap(),
        ]);
    }
    let after = std::fs::read(s.path()).unwrap();
    assert_eq!(before, after, "dry-run must not modify project.req");
    assert!(
        !stdout(&s.run(&["list"]))
            .to_lowercase()
            .contains("log every error"),
        "dry-run must not persist a requirement"
    );
}

/// REQ-0180: an ingested test result is bound to the payload commit, and a
/// payload omitting the commit is rejected.
#[test]
fn req_0180_ingest_binds_commit_and_rejects_missing() {
    let (s, sha) = implemented_in_git();
    let p = s.dir.path().join("r.json");
    std::fs::write(
        &p,
        format!(
            r#"{{"schema":"req-test-result-v1","system":"at_test","commit":"{}","results":[{{"req_id":"REQ-0001","verdict":"pass","notes":"bench"}}]}}"#,
            sha
        ),
    )
    .unwrap();
    assert!(run_in(&s, &["test", "ingest", p.to_str().unwrap()])
        .status
        .success());
    let v: serde_json::Value =
        serde_json::from_str(&stdout(&run_in(&s, &["show", "REQ-0001", "--json"]))).unwrap();
    let last = v["tests"].as_array().unwrap().last().unwrap();
    assert_eq!(
        last["commit"].as_str().unwrap(),
        sha,
        "record bound to the payload commit"
    );
    // AC3: a payload with no commit is rejected.
    let p2 = s.dir.path().join("nocommit.json");
    std::fs::write(
        &p2,
        r#"{"schema":"req-test-result-v1","system":"at_test","results":[{"req_id":"REQ-0001","verdict":"pass"}]}"#,
    )
    .unwrap();
    assert!(
        !run_in(&s, &["test", "ingest", p2.to_str().unwrap()])
            .status
            .success(),
        "a payload missing the commit must be rejected"
    );
}

/// REQ-0183: an external decision (plan/analysis/statement) populates the
/// dossier when its commit matches the anchor; a mismatched commit does not.
#[test]
fn req_0183_external_decision_populates_dossier() {
    let (s, sha) = implemented_in_git();
    let p = s.dir.path().join("d.json");
    std::fs::write(
        &p,
        format!(
            r#"{{"schema":"req-test-result-v1","system":"at_test","commit":"{}","results":[{{"req_id":"REQ-0001","verdict":"pass","decision":{{"plan":"bench plan here","analysis":"reviewed on bench","statement":"meets the obligation"}}}}]}}"#,
            sha
        ),
    )
    .unwrap();
    assert!(run_in(&s, &["test", "ingest", p.to_str().unwrap()])
        .status
        .success());
    let v: serde_json::Value =
        serde_json::from_str(&stdout(&run_in(&s, &["show", "REQ-0001", "--json"]))).unwrap();
    let ver = &v["verification"];
    assert_eq!(ver["plan"].as_str().unwrap(), "bench plan here");
    assert_eq!(ver["statement"].as_str().unwrap(), "meets the obligation");
    assert_eq!(
        ver["analysis"]["summary"].as_str().unwrap(),
        "reviewed on bench"
    );
    // AC3: a decision whose commit does not match the anchor must not apply.
    let p2 = s.dir.path().join("d2.json");
    std::fs::write(
        &p2,
        r#"{"schema":"req-test-result-v1","system":"at_test","commit":"deadbeefdeadbeefdeadbeefdeadbeefdeadbeef","results":[{"req_id":"REQ-0001","verdict":"pass","decision":{"plan":"mismatched plan here"}}]}"#,
    )
    .unwrap();
    let _ = run_in(&s, &["test", "ingest", p2.to_str().unwrap()]);
    let v2: serde_json::Value =
        serde_json::from_str(&stdout(&run_in(&s, &["show", "REQ-0001", "--json"]))).unwrap();
    assert_ne!(
        v2["verification"]["plan"].as_str().unwrap(),
        "mismatched plan here",
        "a decision with a non-matching commit must not overwrite the dossier"
    );
}

/// REQ-0190: the well-formedness command is `req conform`; `req validate` is gone.
#[test]
fn req_0190_conform_replaces_validate() {
    let s = Sandbox::new();
    s.init("p");
    assert!(s.run(&["conform"]).status.success(), "conform should run");
    let o = s.run(&["validate"]);
    assert!(!o.status.success(), "validate must be gone");
    assert!(
        stderr(&o).to_lowercase().contains("unrecognized")
            || stderr(&o).to_lowercase().contains("unexpected"),
        "validate should be an unknown subcommand: {}",
        stderr(&o)
    );
}

/// REQ-0196: the IEC 61508 terminology reference is available via `req help`.
#[test]
fn req_0196_terminology_reference_available() {
    let s = Sandbox::new();
    s.init("p");
    let body = stdout(&s.run(&["help", "terminology"]));
    let up = body.to_uppercase();
    assert!(
        up.contains("VERIFICATION")
            && up.contains("VALIDATION")
            && body.to_lowercase().contains("conform"),
        "terminology reference must define the V&V vocabulary:\n{}",
        body
    );
}

/// REQ-0092: `req status --tag` scopes the report to a milestone slice.
#[test]
fn req_0092_status_tag_scopes_report() {
    let s = Sandbox::new();
    s.init("p");
    s.run(&[
        "add",
        "-t",
        "Alpha thing here",
        "-s",
        "The system shall do alpha.",
        "-r",
        "alpha rationale here",
        "-k",
        "functional",
        "-a",
        "alpha works",
        "--tag",
        "alpha",
    ]);
    s.run(&[
        "add",
        "-t",
        "Beta thing here",
        "-s",
        "The system shall do beta.",
        "-r",
        "beta rationale here",
        "-k",
        "functional",
        "-a",
        "beta works",
        "--tag",
        "beta",
    ]);
    let v: serde_json::Value =
        serde_json::from_str(&stdout(&s.run(&["status", "--json", "--tag", "alpha"]))).unwrap();
    assert_eq!(v["total"].as_i64().unwrap(), 1, "tag must scope to one req");
    assert_eq!(v["filter"]["tags"][0].as_str().unwrap(), "alpha");
}

/// REQ-0022: atomic temp-and-rename leaves no partial/.tmp file after a save.
#[test]
fn req_0022_atomic_write_leaves_no_tmp() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s);
    let leftover: Vec<_> = std::fs::read_dir(s.dir.path())
        .unwrap()
        .filter_map(|e| e.ok())
        .filter(|e| e.file_name().to_string_lossy().ends_with(".tmp"))
        .collect();
    assert!(
        leftover.is_empty(),
        "no .tmp file should remain after an atomic save"
    );
}

/// REQ-0102: conformance findings name both the cause and the fix.
#[test]
fn req_0102_findings_name_cause_and_fix() {
    let s = Sandbox::new();
    s.init("p");
    // A compound statement triggers REQ-V-0010, whose message names the cause
    // (compound) and the fix (`req split`).
    s.run(&[
        "add",
        "-t",
        "Compound thing here",
        "-s",
        "The system shall do A and shall do B and shall do C.",
        "-r",
        "exercise the finding message",
        "-k",
        "functional",
        "-a",
        "does a and b and c",
    ]);
    let out = stdout(&s.run(&["conform"]));
    assert!(
        out.contains("REQ-V-0010"),
        "expected the compound finding:\n{}",
        out
    );
    assert!(
        out.contains("split"),
        "finding should name the `req split` fix:\n{}",
        out
    );
}

/// REQ-0051: a candidate rejected by the conformance check does not burn a REQ ID.
#[test]
fn req_0051_failed_add_does_not_burn_id() {
    let s = Sandbox::new();
    s.init("p");
    add_one(&s); // REQ-0001
    let bad = s.run(&[
        "add",
        "-t",
        "X",
        "-s",
        "too short",
        "-r",
        "x",
        "-k",
        "functional",
        "-a",
        "a",
    ]);
    assert!(!bad.status.success(), "invalid add must be rejected");
    let ok = s.run(&[
        "add",
        "-t",
        "Second valid thing",
        "-s",
        "The system shall do the second thing.",
        "-r",
        "second rationale here",
        "-k",
        "functional",
        "-a",
        "second works",
    ]);
    assert!(ok.status.success(), "valid add: {}", stderr(&ok));
    assert!(
        stdout(&ok).contains("REQ-0002"),
        "rejected add must not burn the ID:\n{}",
        stdout(&ok)
    );
}

/// SR-0001: a project.req whose content fails its integrity hash is refused at
/// load with a pointer to `req repair` (not silently mis-read).
#[test]
fn sr_0001_integrity_tamper_refused_with_repair_pointer() {
    let s = Sandbox::new();
    s.init("p");
    let p = s.path();
    let body = std::fs::read_to_string(&p)
        .unwrap()
        .replace("\"name\": \"p\"", "\"name\": \"X\"");
    std::fs::write(&p, body).unwrap();
    let o = s.run(&["list"]);
    assert!(!o.status.success(), "a tampered file must refuse to load");
    let e = stderr(&o).to_lowercase();
    assert!(
        e.contains("integrity") && e.contains("repair"),
        "error must flag integrity and point to repair:\n{}",
        stderr(&o)
    );
}

/// SR-0004: the verification provenance report classifies every Verified item
/// into the provenance categories with counts (genuine / exempt / stale /
/// unconfirmed / ungated).
#[test]
fn sr_0004_provenance_report_classifies_categories() {
    let s = Sandbox::new();
    s.init("p");
    let v: serde_json::Value =
        serde_json::from_str(&stdout(&s.run(&["verification", "report", "--json"]))).unwrap();
    let counts = &v["counts"];
    for k in [
        "genuine",
        "exempt_backfilled",
        "exempt_no_dossier",
        "stale",
        "unconfirmed",
        "ungated",
    ] {
        assert!(
            counts.get(k).is_some(),
            "provenance report must report category '{}':\n{}",
            k,
            v["counts"]
        );
    }
}

/// SR-0006: a conformance (well-formedness) check must not present as V&V status
/// and must point to the command that reports true verification standing —
/// on the human and the --json paths.
#[test]
fn sr_0006_conform_disclaims_vv_and_points_to_status() {
    let s = Sandbox::new();
    s.init("p");
    let human = stdout(&s.run(&["conform"]));
    assert!(
        human.contains("well-formedness") && human.contains("verification status"),
        "conform output must disclaim V&V and point to `req verification status`:\n{}",
        human
    );
    let v: serde_json::Value =
        serde_json::from_str(&stdout(&s.run(&["conform", "--json"]))).unwrap();
    let note = v["note"].as_str().unwrap_or("");
    assert!(
        note.contains("well-formedness") && note.contains("verification status"),
        "conform --json must carry the same disclaimer in `note`: {}",
        note
    );
}

/// SR-0002 (full scope): the SIL-rigour gate blocks inspection-only promotion
/// at SIL4 (not just SIL3), and an audited --force --reason exception is
/// recorded on the resulting test record.
#[test]
fn sr_0002_sil_gate_at_sil4_records_audited_exception() {
    let s = Sandbox::new();
    s.init("p");
    s.enable_safety();
    // Force a leaf to SIL4 so the chain inherits SIL4 deterministically.
    s.run(&["safety", "calibrate", "--set", "C_D/F_B/P_B=W3:4,W2:3,W1:2"]);
    s.run(&[
        "hazard",
        "add",
        "-t",
        "Severe hazard",
        "--harm",
        "death",
        "-C",
        "C_D",
        "-F",
        "F_B",
        "-P",
        "P_B",
        "-W",
        "W3",
    ]);
    s.run(&[
        "sf",
        "add",
        "-t",
        "Protective function",
        "--mitigates",
        "HAZ-0001",
    ]);
    s.run(&[
        "sreq",
        "add",
        "-t",
        "Stop the blade now",
        "-s",
        "The system shall stop the blade on demand.",
        "-r",
        "operator safety during cleaning",
        "-a",
        "blade stops within 200ms",
        "--realizes",
        "SF-0001",
    ]);
    assert!(
        stdout(&s.run(&["sreq", "show", "SR-0001"])).contains("SIL4"),
        "SR must inherit SIL4"
    );
    for st in ["approved", "implemented"] {
        s.run(&[
            "sreq",
            "update",
            "SR-0001",
            "--status",
            st,
            "--reason",
            "advance step",
        ]);
    }
    // Genuine dossier so the dossier gate is satisfied (SIL gate is under test).
    s.run(&[
        "verification",
        "plan",
        "SR-0001",
        "--plan",
        "review + bench test",
    ]);
    s.run(&[
        "verification",
        "analysis",
        "SR-0001",
        "--result",
        "pass",
        "--findings",
        "stop logic reviewed",
    ]);
    s.run(&[
        "verification",
        "test",
        "SR-0001",
        "--result",
        "pass",
        "--findings",
        "bench measured the stop",
    ]);
    s.run(&[
        "verification",
        "conclude",
        "SR-0001",
        "--statement",
        "meets the stop obligation",
    ]);
    // Gate blocks inspection-only promotion at SIL4.
    let blocked = s.run(&[
        "sreq",
        "verify",
        "SR-0001",
        "--by",
        "inspection",
        "--promote",
    ]);
    assert!(
        !blocked.status.success(),
        "SIL4 inspection promote must be blocked"
    );
    assert!(
        stderr(&blocked).contains("SIL-rigour gate"),
        "stderr: {}",
        stderr(&blocked)
    );
    // --force --reason succeeds AND records the audited exception.
    let forced = s.run(&[
        "sreq",
        "verify",
        "SR-0001",
        "--by",
        "inspection",
        "--promote",
        "--force",
        "--reason",
        "accepted at design review",
    ]);
    assert!(forced.status.success(), "force+reason: {}", stderr(&forced));
    let v: serde_json::Value =
        serde_json::from_str(&stdout(&s.run(&["sreq", "show", "SR-0001", "--json"]))).unwrap();
    let last = v["tests"].as_array().unwrap().last().unwrap();
    assert_eq!(
        last["sil_gate_exception"], true,
        "audited exception must be recorded on the record"
    );
}

/// SR-0003 (full scope): a reasoned, attributed history entry is appended for a
/// mutation of EACH safety family — hazard, safety function, AND safety
/// requirement — not just the safety requirement.
#[test]
fn sr_0003_history_appended_for_hazard_sf_and_sr() {
    let s = Sandbox::new();
    s.init("p");
    s.enable_safety();
    s.run(&[
        "hazard", "add", "-t", "A hazard", "--harm", "hurt", "-C", "C_C", "-F", "F_B", "-P", "P_B",
        "-W", "W3",
    ]);
    s.run(&["sf", "add", "-t", "A function", "--mitigates", "HAZ-0001"]);
    s.run(&[
        "sreq",
        "add",
        "-t",
        "Stop the blade now",
        "-s",
        "The system shall stop the blade.",
        "-r",
        "operator safety here",
        "-a",
        "stops",
        "--realizes",
        "SF-0001",
    ]);
    // Mutate each family with a reason.
    s.run(&[
        "hazard",
        "update",
        "HAZ-0001",
        "-t",
        "A hazard renamed",
        "--reason",
        "retitle hazard for clarity",
    ]);
    s.run(&[
        "sf",
        "update",
        "SF-0001",
        "-t",
        "A function renamed",
        "--reason",
        "retitle function for clarity",
    ]);
    s.run(&[
        "sreq",
        "update",
        "SR-0001",
        "--status",
        "approved",
        "--reason",
        "approve the requirement",
    ]);
    for (cmd, id) in [
        ("hazard", "HAZ-0001"),
        ("sf", "SF-0001"),
        ("sreq", "SR-0001"),
    ] {
        let v: serde_json::Value =
            serde_json::from_str(&stdout(&s.run(&[cmd, "show", id, "--json"]))).unwrap();
        let hist = v["history"].as_array().unwrap();
        assert!(
            hist.len() >= 2,
            "{} must accumulate history (append-only): {:?}",
            id,
            hist
        );
        let last = hist.last().unwrap();
        assert!(
            last["actor"].as_str().filter(|s| !s.is_empty()).is_some()
                && last["action"].as_str().filter(|s| !s.is_empty()).is_some()
                && last["reason"].as_str().filter(|s| !s.is_empty()).is_some(),
            "{} latest history entry must carry actor + action + reason: {}",
            id,
            last
        );
    }
}