mesh-host/cmd/mesh-host/units_test.go

package main

import (
	"strings"
	"testing"
	"time"

	"github.com/novox/mesh-host/internal/accounts"
	"github.com/novox/mesh-host/internal/declaration"
	"github.com/novox/mesh-host/internal/link"
	"github.com/novox/mesh-host/internal/liveness"
	"github.com/novox/mesh-host/internal/units"
)

// The machine's failed units in the engine's statement (novox/hq issue 315): a module's is among the
// resources, unhealthy, as that module's unit, naming it; the machine's own beside them; and an engine
// not reading them says nothing of them.
func TestTheStatementCarriesTheFailedUnits(t *testing.T) {
	at := time.Date(2026, 10, 8, 12, 0, 0, 0, time.UTC)
	us := &units.Statement{At: at, State: units.Degraded, Failed: []units.Failed{
		{Unit: "openrazer-daemon.service", Scope: units.ScopeUser, Load: "loaded", Result: "exit-code",
			User: "operator", Module: "openrazer", Resource: "openrazer.daemon", Via: units.ViaPackage, Since: at, Streak: 2},
		{Unit: "storage-media.mount", Scope: units.ScopeSystem, Load: "loaded", Result: "timeout", Since: at, Streak: 2},
	}}
	h := withUnits(healthAsReported(liveness.Statement{At: at}, nil), us)
	if len(h.Resources) != 1 {
		t.Fatalf("one module's unit among the resources: %+v", h.Resources)
	}
	r := h.Resources[0]
	if r.Module != "openrazer" || r.Resource != "openrazer.daemon" || r.Kind != link.KindUnit ||
		r.Target != "openrazer-daemon.service" || r.State != link.StateUnhealthy ||
		!strings.Contains(r.Reason, "account's own service manager") || !strings.Contains(r.Reason, "exit-code") {
		t.Fatalf("the module's failed unit: %+v", r)
	}
	// Whose manager it fails in, so the controller can tell it from a fault (novox/hq ADR 0254).
	if r.Account != "operator" {
		t.Fatalf("the unit in the account's own manager does not name the account: %q", r.Account)
	}
	if h.Units == nil || h.Units.State != units.Degraded || len(h.Units.Failed) != 1 ||
		h.Units.Failed[0].Unit != "storage-media.mount" || h.Units.Failed[0].Result != "timeout" {
		t.Fatalf("the machine's own: %+v", h.Units)
	}
	if h := withUnits(healthAsReported(liveness.Statement{At: at}, nil), nil); h.Units != nil {
		t.Fatal("an engine not reading units said them")
	}
	if h := withUnits(healthAsReported(liveness.Statement{At: at}, nil), &units.Statement{}); h.Units != nil {
		t.Fatal("a judge not yet given a declaration said units")
	}
}

// Every resource that runs in an account's own service manager names the account, and so does the account
// a module put in a group (novox/hq ADR 0254): the controller reads a unit that cannot run before a new login
// by the two together. What the machine's own manager runs names none.
func TestTheStatementNamesTheAccountsManager(t *testing.T) {
	at := time.Date(2026, 10, 8, 12, 0, 0, 0, time.UTC)
	st := liveness.Statement{At: at, Resources: []liveness.State{
		{Resource: liveness.Resource{Module: "openrazer", ID: "openrazer.daemon", Kind: "service",
			Target: "openrazer-daemon.service", Scope: declaration.ScopeUser, User: "operator"}, State: liveness.Unhealthy,
			Reason: "down", Since: at},
		{Resource: liveness.Resource{Module: "docker", ID: "docker.engine", Kind: "service", Target: "docker.service",
			Scope: declaration.ScopeSystem}, State: liveness.Healthy, Since: at},
	}}
	as := &accounts.Statement{At: at, Accounts: []accounts.Verdict{{Account: accounts.Account{Module: "openrazer",
		ID: "openrazer.operator", Name: "operator", Groups: []string{"openrazer"}}, State: accounts.Unhealthy,
		Reason: accounts.ReasonRelogin + ": operator is in the group openrazer", Since: at}}}
	h := withAccounts(healthAsReported(st, nil), as)
	got := map[string]string{}
	for _, r := range h.Resources {
		got[r.Resource] = r.Account
	}
	want := map[string]string{"openrazer.daemon": "operator", "docker.engine": "", "openrazer.operator": "operator"}
	for id, account := range want {
		if a, said := got[id]; !said || a != account {
			t.Errorf("%s names the account %q (said %v); want %q", id, a, said, account)
		}
	}
}

// An account declared never to become root (novox/hq ADR 0266) is said with root never, under the contract
// that tells the controller this engine judges it; an account judged for its groups alone is not.
func TestTheStatementSaysAnAccountJudgedForRoot(t *testing.T) {
	at := time.Date(2026, 10, 8, 12, 0, 0, 0, time.UTC)
	as := &accounts.Statement{At: at, Accounts: []accounts.Verdict{
		{Account: accounts.Account{Module: "claude-code", ID: "claude-code.agent", Name: "agent", Root: true},
			State: accounts.Unhealthy, Reason: accounts.ReasonRoot + ": in the group docker, which grants root", Since: at},
		{Account: accounts.Account{Module: "openrazer", ID: "openrazer.account", Name: "operator",
			Groups: []string{"openrazer"}}, State: accounts.Healthy, Since: at},
	}}
	h := withAccounts(healthAsReported(liveness.Statement{At: at}, nil), as)
	// At RootContract or later: an engine that also reads libraries says LibraryContract (novox/hq ADR 0328), one
	// above ADR 0325's IdentityContract.
	if h.Contract < link.RootContract || link.RootContract != 3 || h.Contract != link.LibraryContract ||
		link.LibraryContract != link.IdentityContract+1 {
		t.Fatalf("contract %d", h.Contract)
	}
	got := map[string]string{}
	for _, r := range h.Resources {
		got[r.Resource] = r.Root
	}
	if got["claude-code.agent"] != "never" || got["openrazer.account"] != "" {
		t.Fatalf("root said: %v", got)
	}
}

// A verdict waiting for the setuid search says how far it got, in the reason the root-free verb repeats and as
// fields (novox/hq issue 361); a mount point, never a path the walk visited or found.
func TestTheStatementSaysHowFarTheSetuidSearchGot(t *testing.T) {
	at := time.Date(2026, 10, 10, 1, 40, 0, 0, time.UTC)
	sp := &accounts.SearchProgress{Started: at, Filesystems: 3, Done: 1, Walking: "/home", Visited: 42, Found: 2,
		Kept: at, Finished: []accounts.SearchedFilesystem{{Mount: "/", Took: 90 * time.Second}}}
	as := &accounts.Statement{At: at, Accounts: []accounts.Verdict{{Account: accounts.Account{Module: "claude-code",
		ID: "claude-code.agent", Name: "agent", Root: true}, State: accounts.Unknown,
		Reason: accounts.ReasonPending + ": the search for setuid programs, started 2026-10-10 01:27, has not finished yet",
		Since:  at, Search: sp}}}
	h := withAccounts(healthAsReported(liveness.Statement{At: at}, nil), as)
	r := h.Resources[0]
	if !strings.HasPrefix(r.Reason, accounts.ReasonPending) || !strings.Contains(r.Reason, "1 of 3 filesystems walked, walking /home, 42 entries visited") {
		t.Fatalf("the reason: %s", r.Reason)
	}
	s := r.Search
	if s == nil || s.Filesystems != 3 || s.Done != 1 || s.Walking != "/home" || s.Visited != 42 || s.Found != 2 ||
		s.Kept == nil || len(s.Finished) != 1 || s.Finished[0].Mount != "/" || *s.Finished[0].TookSeconds != 90 {
		t.Fatalf("the fields: %+v", s)
	}
}