Relocate packaging: RPM, shell completions, no-TTY fix, repaired tests (#13)

## Why

The unit tests stopped compiling after the `--pm` → `-p`/`-i` match-modifier refactor was left uncommitted, there was no RPM/completions distribution story, and invoking the tool without a TTY against an empty pipe silently returned nothing. This makes the project releasable and safe to run from agents/CI.

## Changes

- Make stdin handling robust: replace the fragile `!isTerminal` check with `stdinReader()`, which only reads node names when stdin is a real pipe/redirect carrying data. Terminals, `/dev/null`, and empty/closed pipes now fall through to a normal query, so running without a TTY behaves like an interactive run.
- Repair and expand `main_test.go` to match the current `buildQuery`/`run` signatures; add coverage for the match modifiers, all output modes, config precedence, and the new `stdinReader` logic. `httptest` stubs PuppetDB (no live deps).
- Add nfpm packaging (`packaging/nfpm.yaml`, `scripts/build-rpm.sh`): installs the binary to `/usr/bin/node-lookup` and bundles generated bash/zsh/fish completions under the standard system paths.
- Rework the Makefile to build into `dist/` and add `completions`/`rpm` targets.
- Split PR CI into `build`, `test`, and `pre-commit` workflows and extend `release` to build the RPM and `PUT` it to the artifactapi `rpm-internal` repo. Every step sets a `serviceAccount` and k8s resources.

The project directory has also been relocated under `prodenv`.

Reviewed-on: #13
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
This commit was merged in pull request #13.
This commit is contained in:
2026-07-05 00:02:34 +10:00
committed by BenVincent
parent 990e2a2e43
commit e070357d3f
12 changed files with 722 additions and 161 deletions
+350 -80
View File
@@ -26,74 +26,161 @@ func rawJSON(v interface{}) json.RawMessage {
return json.RawMessage(b)
}
// captureStdout redirects os.Stdout for the duration of fn and returns whatever
// was written. run() writes directly to os.Stdout, so the output modes are
// exercised end-to-end this way.
func captureStdout(t *testing.T, fn func()) string {
t.Helper()
old := os.Stdout
r, w, err := os.Pipe()
if err != nil {
t.Fatal(err)
}
os.Stdout = w
defer func() { os.Stdout = old }()
fn()
_ = w.Close()
var buf strings.Builder
_, _ = io.Copy(&buf, r)
return buf.String()
}
// ---- buildQuery -------------------------------------------------------------
func TestBuildQuery_NoFilters(t *testing.T) {
q := buildQuery("", "", "", "", "enc_role", false)
if !strings.Contains(q, "enc_role") {
// With no node/fact/match, buildQuery falls back to a role-fact query.
q := buildQuery("", "", "", "enc_role", false, false, false)
if !strings.Contains(q, "enc_role") || !strings.Contains(q, "name") {
t.Fatalf("expected default role query, got %s", q)
}
}
func TestBuildQuery_Node(t *testing.T) {
q := buildQuery("host1", "", "", "", "enc_role", false)
q := buildQuery("host1", "", "", "enc_role", false, false, false)
if !strings.Contains(q, "certname") || !strings.Contains(q, "host1") {
t.Fatalf("unexpected query: %s", q)
}
}
func TestBuildQuery_FactAndMatch(t *testing.T) {
q := buildQuery("", "region", "syd1", "", "enc_role", false)
q := buildQuery("", "region", "syd1", "enc_role", false, false, false)
if !strings.Contains(q, "region") || !strings.Contains(q, "syd1") {
t.Fatalf("unexpected query: %s", q)
}
// exact match uses the "=" operator, never "~".
if strings.Contains(q, `"~"`) {
t.Fatalf("exact match should not use ~ operator: %s", q)
}
}
func TestBuildQuery_PartialMatch(t *testing.T) {
q := buildQuery("", "enc_role", "", "dns", "enc_role", false)
if !strings.Contains(q, "~") || !strings.Contains(q, "dns") {
t.Fatalf("expected partial match query, got %s", q)
// -p turns the value match into a regex ("~") comparison.
q := buildQuery("", "enc_role", "dns", "enc_role", false, true, false)
if !strings.Contains(q, `"~"`) || !strings.Contains(q, "dns") {
t.Fatalf("expected partial (~) match query, got %s", q)
}
}
func TestBuildQuery_InverseMatch(t *testing.T) {
// -i wraps the value comparison in a "not".
q := buildQuery("", "enc_role", "dns", "enc_role", false, false, true)
if !strings.Contains(q, `"not"`) {
t.Fatalf("expected inverse (not) match query, got %s", q)
}
}
func TestBuildQuery_InversePartialMatch(t *testing.T) {
// -i and -p compose: a negated regex match.
q := buildQuery("", "enc_role", "dns", "enc_role", false, true, true)
if !strings.Contains(q, `"not"`) || !strings.Contains(q, `"~"`) {
t.Fatalf("expected inverse partial match query, got %s", q)
}
// The regex operator must sit inside the "not" wrapper, not beside it.
notIdx := strings.Index(q, `"not"`)
tildeIdx := strings.Index(q, `"~"`)
if notIdx < 0 || tildeIdx < 0 || tildeIdx < notIdx {
t.Fatalf("expected ~ nested inside not, got %s", q)
}
}
func TestBuildQuery_ShowRole(t *testing.T) {
q := buildQuery("", "", "", "", "my_role_fact", true)
q := buildQuery("", "", "", "my_role_fact", true, false, false)
if !strings.Contains(q, "my_role_fact") {
t.Fatalf("expected role fact in query, got %s", q)
}
}
func TestBuildQuery_CustomRoleFact(t *testing.T) {
q := buildQuery("", "", "", "", "custom_role", true)
q := buildQuery("", "", "", "custom_role", true, false, false)
if !strings.Contains(q, "custom_role") {
t.Fatalf("expected custom role fact, got %s", q)
}
}
// ---- valueString ------------------------------------------------------------
func TestBuildQuery_FactBeatsRole(t *testing.T) {
// An explicit -F fact name takes precedence over the role fact.
q := buildQuery("", "region", "", "enc_role", true, false, false)
if !strings.Contains(q, "region") {
t.Fatalf("expected explicit fact name, got %s", q)
}
if strings.Contains(q, "enc_role") {
t.Fatalf("role fact should not appear when -F is set: %s", q)
}
}
func TestBuildQuery_ValidJSON(t *testing.T) {
// Whatever the flag combination, the query must be a valid JSON array.
q := buildQuery("host1", "region", "syd1", "enc_role", false, true, true)
var v []interface{}
if err := json.Unmarshal([]byte(q), &v); err != nil {
t.Fatalf("query is not valid JSON: %v (%s)", err, q)
}
if v[0] != "and" {
t.Fatalf("expected combined query to start with 'and', got %v", v[0])
}
}
// ---- valueString / valueAny -------------------------------------------------
func TestValueString_String(t *testing.T) {
raw := rawJSON("hello")
if got := valueString(raw); got != "hello" {
if got := valueString(rawJSON("hello")); got != "hello" {
t.Fatalf("expected hello, got %s", got)
}
}
func TestValueString_Number(t *testing.T) {
raw := rawJSON(42)
if got := valueString(raw); got != "42" {
if got := valueString(rawJSON(42)); got != "42" {
t.Fatalf("expected 42, got %s", got)
}
}
func TestValueString_Bool(t *testing.T) {
if got := valueString(rawJSON(true)); got != "true" {
t.Fatalf("expected true, got %s", got)
}
}
func TestValueString_Object(t *testing.T) {
raw := json.RawMessage(`{"a":1}`)
got := valueString(raw)
if got != `{"a":1}` {
if got := valueString(raw); got != `{"a":1}` {
t.Fatalf("expected compact JSON, got %s", got)
}
}
func TestValueAny_TypesPreserved(t *testing.T) {
if v := valueAny(rawJSON("s")); v != "s" {
t.Fatalf("expected string, got %v", v)
}
if v := valueAny(rawJSON(3)); v != float64(3) {
t.Fatalf("expected float64(3), got %T %v", v, v)
}
if v := valueAny(rawJSON(true)); v != true {
t.Fatalf("expected bool true, got %v", v)
}
}
// ---- processResults ---------------------------------------------------------
func TestProcessResults_Sorted(t *testing.T) {
@@ -108,8 +195,7 @@ func TestProcessResults_Sorted(t *testing.T) {
}
func TestProcessResults_Empty(t *testing.T) {
out := processResults(nil)
if len(out) != 0 {
if out := processResults(nil); len(out) != 0 {
t.Fatalf("expected empty, got %v", out)
}
}
@@ -117,11 +203,7 @@ func TestProcessResults_Empty(t *testing.T) {
// ---- countResults -----------------------------------------------------------
func TestCountResults_Basic(t *testing.T) {
lines := []string{
"host1 syd1",
"host2 syd1",
"host3 mel1",
}
lines := []string{"host1 syd1", "host2 syd1", "host3 mel1"}
out := countResults(lines)
found := map[string]bool{}
for _, l := range out {
@@ -136,9 +218,8 @@ func TestCountResults_Basic(t *testing.T) {
}
func TestCountResults_Sorted(t *testing.T) {
lines := []string{"h1 z", "h2 a", "h3 a"}
out := countResults(lines)
// lexicographic sort: "1: z" < "2: a"
// Lexicographic sort of the "N: value" strings: "1: z" < "2: a".
out := countResults([]string{"h1 z", "h2 a", "h3 a"})
if out[0] != "1: z" || out[1] != "2: a" {
t.Fatalf("unexpected order: %v", out)
}
@@ -147,13 +228,11 @@ func TestCountResults_Sorted(t *testing.T) {
// ---- queryPuppetDB ----------------------------------------------------------
func TestQueryPuppetDB_Success(t *testing.T) {
want := []fact{
{Certname: "node1", Name: "enc_role", Value: rawJSON("roles::dns")},
}
want := []fact{{Certname: "node1", Name: "enc_role", Value: rawJSON("roles::dns")}}
srv := newTestServer(t, want)
defer srv.Close()
got, err := queryPuppetDB(srv.URL+"/pdb/query/v4/facts", `["=","name","enc_role"]`)
got, err := queryPuppetDB(srv.URL, `["=","name","enc_role"]`)
if err != nil {
t.Fatal(err)
}
@@ -162,14 +241,27 @@ func TestQueryPuppetDB_Success(t *testing.T) {
}
}
func TestQueryPuppetDB_SendsQueryParam(t *testing.T) {
var got string
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
got = r.URL.Query().Get("query")
_ = json.NewEncoder(w).Encode([]fact{})
}))
defer srv.Close()
_, _ = queryPuppetDB(srv.URL, `["=","name","enc_role"]`)
if got != `["=","name","enc_role"]` {
t.Fatalf("query param not forwarded correctly, got %q", got)
}
}
func TestQueryPuppetDB_HTTPError(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "not found", http.StatusNotFound)
}))
defer srv.Close()
_, err := queryPuppetDB(srv.URL+"/pdb/query/v4/facts", `["=","name","enc_role"]`)
if err == nil {
if _, err := queryPuppetDB(srv.URL, `[]`); err == nil {
t.Fatal("expected error for 404")
}
}
@@ -180,15 +272,13 @@ func TestQueryPuppetDB_BadJSON(t *testing.T) {
}))
defer srv.Close()
_, err := queryPuppetDB(srv.URL+"/pdb/query/v4/facts", `["=","name","enc_role"]`)
if err == nil {
if _, err := queryPuppetDB(srv.URL, `[]`); err == nil {
t.Fatal("expected decode error")
}
}
func TestQueryPuppetDB_ConnectionRefused(t *testing.T) {
_, err := queryPuppetDB("http://127.0.0.1:1/facts", `["=","name","enc_role"]`)
if err == nil {
if _, err := queryPuppetDB("http://127.0.0.1:1/facts", `[]`); err == nil {
t.Fatal("expected connection error")
}
}
@@ -292,8 +382,7 @@ func TestLoadConfig_InvalidYAML(t *testing.T) {
t.Fatal(err)
}
_, err := loadConfig()
if err == nil {
if _, err := loadConfig(); err == nil {
t.Fatal("expected error for invalid YAML")
}
}
@@ -305,9 +394,7 @@ func TestWriteDefaultConfig(t *testing.T) {
if err := writeDefaultConfig(); err != nil {
t.Fatal(err)
}
path := filepath.Join(dir, appName, configFileName)
data, err := os.ReadFile(path)
data, err := os.ReadFile(filepath.Join(dir, appName, configFileName))
if err != nil {
t.Fatal(err)
}
@@ -323,15 +410,14 @@ func TestWriteDefaultConfig_AlreadyExists(t *testing.T) {
if err := writeDefaultConfig(); err != nil {
t.Fatal(err)
}
err := writeDefaultConfig()
if err == nil {
if err := writeDefaultConfig(); err == nil {
t.Fatal("expected error when config already exists")
}
}
// ---- allFactsForNode --------------------------------------------------------
func TestAllFactsForNode_ReturnsSortedFacts(t *testing.T) {
func TestAllFactsForNode_ReturnsFacts(t *testing.T) {
facts := []fact{
{Certname: "node1", Name: "zebra", Value: rawJSON("z-val")},
{Certname: "node1", Name: "alpha", Value: rawJSON("a-val")},
@@ -340,7 +426,7 @@ func TestAllFactsForNode_ReturnsSortedFacts(t *testing.T) {
srv := newTestServer(t, facts)
defer srv.Close()
got, err := allFactsForNode(srv.URL+"/pdb/query/v4/facts", "node1")
got, err := allFactsForNode(srv.URL, "node1")
if err != nil {
t.Fatal(err)
}
@@ -353,12 +439,11 @@ func TestAllFactsForNode_QueryContainsCertname(t *testing.T) {
var receivedQuery string
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
receivedQuery = r.URL.Query().Get("query")
w.Header().Set("Content-Type", "application/json")
_ = json.NewEncoder(w).Encode([]fact{})
}))
defer srv.Close()
_, _ = allFactsForNode(srv.URL+"/pdb/query/v4/facts", "mynode.example.com")
_, _ = allFactsForNode(srv.URL, "mynode.example.com")
if !strings.Contains(receivedQuery, "mynode.example.com") {
t.Fatalf("expected certname in query, got: %s", receivedQuery)
}
@@ -373,59 +458,244 @@ func TestAllFactsForNode_HTTPError(t *testing.T) {
}))
defer srv.Close()
_, err := allFactsForNode(srv.URL+"/pdb/query/v4/facts", "node1")
if err == nil {
if _, err := allFactsForNode(srv.URL, "node1"); err == nil {
t.Fatal("expected error for HTTP 500")
}
}
// ---- run with -a flag -------------------------------------------------------
// ---- stdinReader (no-TTY behavior) ------------------------------------------
func TestStdinReader_CharDeviceFallsThrough(t *testing.T) {
// /dev/null is a character device — the same shape stdin has when the tool
// is invoked by an agent/CI without a TTY. It must NOT be treated as input.
f, err := os.Open(os.DevNull)
if err != nil {
t.Fatal(err)
}
defer func() { _ = f.Close() }()
if _, ok := stdinReader(f); ok {
t.Fatal("expected /dev/null to be treated as no stdin data")
}
}
func TestStdinReader_EmptyPipeFallsThrough(t *testing.T) {
// A closed, empty pipe (e.g. `true | node-lookup`) must fall through to a
// normal query rather than consuming empty input and printing nothing.
r, w, err := os.Pipe()
if err != nil {
t.Fatal(err)
}
_ = w.Close() // no data written; reader sees immediate EOF
defer func() { _ = r.Close() }()
if _, ok := stdinReader(r); ok {
t.Fatal("expected empty pipe to be treated as no stdin data")
}
}
func TestStdinReader_PipeWithDataIsRead(t *testing.T) {
r, w, err := os.Pipe()
if err != nil {
t.Fatal(err)
}
go func() {
_, _ = io.WriteString(w, "node1\nnode2\n")
_ = w.Close()
}()
defer func() { _ = r.Close() }()
reader, ok := stdinReader(r)
if !ok {
t.Fatal("expected pipe with data to be treated as stdin input")
}
got, _ := reader.ReadString('\n')
if strings.TrimSpace(got) != "node1" {
t.Fatalf("expected first line 'node1', got %q", got)
}
}
func TestStdinReader_RegularFileWithData(t *testing.T) {
path := filepath.Join(t.TempDir(), "nodes.txt")
if err := os.WriteFile(path, []byte("host1\nhost2\n"), 0o644); err != nil {
t.Fatal(err)
}
f, err := os.Open(path)
if err != nil {
t.Fatal(err)
}
defer func() { _ = f.Close() }()
if _, ok := stdinReader(f); !ok {
t.Fatal("expected redirected file with data to be treated as stdin input")
}
}
func TestStdinReader_EmptyFileFallsThrough(t *testing.T) {
path := filepath.Join(t.TempDir(), "empty.txt")
if err := os.WriteFile(path, nil, 0o644); err != nil {
t.Fatal(err)
}
f, err := os.Open(path)
if err != nil {
t.Fatal(err)
}
defer func() { _ = f.Close() }()
if _, ok := stdinReader(f); ok {
t.Fatal("expected empty file to be treated as no stdin data")
}
}
// ---- run: validation --------------------------------------------------------
func TestRun_AllFacts_RequiresNode(t *testing.T) {
cfg := config{PuppetDBURL: "http://unused", RoleFact: "enc_role"}
err := run(cfg, "", "", "", "", false, false, false, false, false, false, true)
err := run(cfg, "", "", "", false, false, false, false, false, false, false, false, true)
if err == nil || !strings.Contains(err.Error(), "-a requires -n") {
t.Fatalf("expected -a requires -n error, got: %v", err)
}
}
func TestRun_OutputFlagsRequireRoleOrFact(t *testing.T) {
cfg := config{PuppetDBURL: "http://unused", RoleFact: "enc_role"}
// -1 (nodeOnly) with neither -R nor -F must error before any HTTP call.
err := run(cfg, "", "", "", false, false, false, true, false, false, false, false, false)
if err == nil || !strings.Contains(err.Error(), "-R or -F") {
t.Fatalf("expected -R/-F requirement error, got: %v", err)
}
}
func TestRun_MatchRequiresRoleOrFact(t *testing.T) {
cfg := config{PuppetDBURL: "http://unused", RoleFact: "enc_role"}
// -m with neither -R nor -F must error before any HTTP call.
err := run(cfg, "", "", "someval", false, false, false, false, false, false, false, false, false)
if err == nil || !strings.Contains(err.Error(), "-R or -F") {
t.Fatalf("expected -R/-F requirement error, got: %v", err)
}
}
// ---- run: output modes ------------------------------------------------------
type runArgs struct {
cfg config
nodeName, factName, match string
showRole, partial, inverse, nodeOnly, valueOnly, count bool
ansible, jsonMode, allFacts bool
}
// runToString invokes run against a mock PuppetDB returning facts, capturing
// stdout. nodeName defaults to "n1" so the stdin path is skipped.
func runToString(t *testing.T, facts []fact, mutate func(*runArgs)) string {
t.Helper()
srv := newTestServer(t, facts)
t.Cleanup(srv.Close)
a := runArgs{
cfg: config{PuppetDBURL: srv.URL, RoleFact: "enc_role"},
nodeName: "n1",
showRole: true,
}
if mutate != nil {
mutate(&a)
}
return captureStdout(t, func() {
if err := run(a.cfg, a.nodeName, a.factName, a.match, a.showRole, a.partial, a.inverse, a.nodeOnly, a.valueOnly, a.count, a.ansible, a.jsonMode, a.allFacts); err != nil {
t.Fatalf("run returned error: %v", err)
}
})
}
func TestRun_DefaultOutput(t *testing.T) {
facts := []fact{
{Certname: "hostb", Name: "enc_role", Value: rawJSON("roles::web")},
{Certname: "hosta", Name: "enc_role", Value: rawJSON("roles::db")},
}
out := strings.TrimSpace(runToString(t, facts, nil))
lines := strings.Split(out, "\n")
if len(lines) != 2 || lines[0] != "hosta roles::db" || lines[1] != "hostb roles::web" {
t.Fatalf("unexpected default output: %q", out)
}
}
func TestRun_NodeOnly(t *testing.T) {
facts := []fact{
{Certname: "hosta", Name: "enc_role", Value: rawJSON("roles::db")},
{Certname: "hostb", Name: "enc_role", Value: rawJSON("roles::web")},
}
out := strings.TrimSpace(runToString(t, facts, func(a *runArgs) { a.nodeOnly = true }))
if out != "hosta\nhostb" {
t.Fatalf("unexpected -1 output: %q", out)
}
}
func TestRun_ValueOnly(t *testing.T) {
facts := []fact{
{Certname: "hosta", Name: "enc_role", Value: rawJSON("roles::db")},
{Certname: "hostb", Name: "enc_role", Value: rawJSON("roles::web")},
}
out := strings.TrimSpace(runToString(t, facts, func(a *runArgs) { a.valueOnly = true }))
if out != "roles::db\nroles::web" {
t.Fatalf("unexpected -2 output: %q", out)
}
}
func TestRun_Count(t *testing.T) {
facts := []fact{
{Certname: "hosta", Name: "enc_role", Value: rawJSON("roles::web")},
{Certname: "hostb", Name: "enc_role", Value: rawJSON("roles::web")},
{Certname: "hostc", Name: "enc_role", Value: rawJSON("roles::db")},
}
out := strings.TrimSpace(runToString(t, facts, func(a *runArgs) { a.count = true }))
if !strings.Contains(out, "2: roles::web") || !strings.Contains(out, "1: roles::db") {
t.Fatalf("unexpected -C output: %q", out)
}
}
func TestRun_JSON(t *testing.T) {
facts := []fact{{Certname: "hosta", Name: "enc_role", Value: rawJSON("roles::db")}}
out := runToString(t, facts, func(a *runArgs) { a.jsonMode = true })
var parsed map[string]map[string]interface{}
if err := json.Unmarshal([]byte(out), &parsed); err != nil {
t.Fatalf("output is not valid JSON: %v (%s)", err, out)
}
if parsed["hosta"]["enc_role"] != "roles::db" {
t.Fatalf("unexpected JSON structure: %v", parsed)
}
}
func TestRun_Ansible(t *testing.T) {
facts := []fact{
{Certname: "hosta", Name: "enc_role", Value: rawJSON("roles::db")},
{Certname: "hostb", Name: "enc_role", Value: rawJSON("roles::web")},
}
out := runToString(t, facts, func(a *runArgs) { a.ansible = true })
if !strings.Contains(out, "all:") || !strings.Contains(out, "hosts:") {
t.Fatalf("expected Ansible inventory structure, got: %q", out)
}
if !strings.Contains(out, "hosta:") || !strings.Contains(out, "hostb:") {
t.Fatalf("expected both hosts in inventory, got: %q", out)
}
}
func TestRun_AllFacts_PrintsSortedByName(t *testing.T) {
facts := []fact{
{Certname: "node1", Name: "zzz_fact", Value: rawJSON("last")},
{Certname: "node1", Name: "aaa_fact", Value: rawJSON("first")},
{Certname: "node1", Name: "mmm_fact", Value: rawJSON(true)},
}
srv := newTestServer(t, facts)
defer srv.Close()
old := os.Stdout
r, w, _ := os.Pipe()
os.Stdout = w
cfg := config{PuppetDBURL: srv.URL + "/pdb/query/v4/facts", RoleFact: "enc_role"}
err := run(cfg, "node1", "", "", "", false, false, false, false, false, false, true)
_ = w.Close()
os.Stdout = old
var buf strings.Builder
_, _ = io.Copy(&buf, r)
out := buf.String()
if err != nil {
t.Fatal(err)
}
lines := strings.Split(strings.TrimSpace(out), "\n")
out := strings.TrimSpace(runToString(t, facts, func(a *runArgs) {
a.showRole = false
a.allFacts = true
}))
lines := strings.Split(out, "\n")
if len(lines) != 3 {
t.Fatalf("expected 3 lines, got %d: %q", len(lines), out)
}
if !strings.HasPrefix(lines[0], "aaa_fact") {
t.Errorf("first line should be aaa_fact, got: %s", lines[0])
}
if !strings.HasPrefix(lines[1], "mmm_fact") {
t.Errorf("second line should be mmm_fact, got: %s", lines[1])
}
if !strings.HasPrefix(lines[2], "zzz_fact") {
t.Errorf("third line should be zzz_fact, got: %s", lines[2])
if !strings.HasPrefix(lines[0], "aaa_fact") ||
!strings.HasPrefix(lines[1], "mmm_fact") ||
!strings.HasPrefix(lines[2], "zzz_fact") {
t.Fatalf("facts not sorted by name: %v", lines)
}
}