coverage: medium batch — hostnat runner, store guest-sessions, daemon helpers

Reuses existing fixtures (CommandRunner fakes, SQLite tempfile store,
pure-Go seams). No new infra needed.

  hostnat                  50% -> 98%   (iptables orchestration via fake runner)
  store                    78% -> 91%   (guest_sessions CRUD roundtrip)
  daemon/session           57% -> 95%   (script gen, state parse, snapshot apply)
  daemon/opstate           67% -> 100%  (Registry Insert/Get/Prune)
  daemon (firstNonEmpty)   slight bump

Total 54.0% -> 56.5%.
This commit is contained in:
Thales Maciel 2026-04-18 18:03:37 -03:00
parent f8979de58a
commit 346eaba673
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GPG key ID: 33112E6833C34679
5 changed files with 1010 additions and 0 deletions

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@ -0,0 +1,214 @@
package store
import (
"context"
"database/sql"
"errors"
"fmt"
"reflect"
"testing"
"time"
"banger/internal/model"
)
func sampleGuestSession(id, vmID, name string) model.GuestSession {
now := fixedTime()
exit := 7
return model.GuestSession{
ID: id,
VMID: vmID,
Name: name,
Backend: "ssh",
AttachBackend: "vsock",
AttachMode: "rpc",
Command: "pi",
Args: []string{"--mode", "rpc"},
CWD: "/root/repo",
Env: map[string]string{"FOO": "bar"},
StdinMode: model.GuestSessionStdinMode("pipe"),
Status: model.GuestSessionStatus("exited"),
ExitCode: &exit,
GuestPID: 1234,
GuestStateDir: "/tmp/guest-" + id,
StdoutLogPath: "/tmp/" + id + ".stdout",
StderrLogPath: "/tmp/" + id + ".stderr",
Tags: map[string]string{"role": "planner"},
LastError: "",
Attachable: true,
Reattachable: true,
LaunchStage: "started",
LaunchMessage: "ok",
LaunchRawLog: "boot log...",
CreatedAt: now,
StartedAt: now,
UpdatedAt: now,
EndedAt: now.Add(time.Minute),
}
}
// openTestStoreWithVMs opens a fresh store seeded with the given VM IDs so
// guest_sessions FK constraints are satisfied. Each VM gets a minimal
// image it references.
func openTestStoreWithVMs(t *testing.T, vmIDs ...string) *Store {
t.Helper()
ctx := context.Background()
store := openTestStore(t)
image := sampleImage("stub-image")
if err := store.UpsertImage(ctx, image); err != nil {
t.Fatalf("UpsertImage: %v", err)
}
for i, id := range vmIDs {
vm := sampleVM(id, image.ID, fmt.Sprintf("172.16.0.%d", i+2))
vm.ID = id
if err := store.UpsertVM(ctx, vm); err != nil {
t.Fatalf("UpsertVM(%s): %v", id, err)
}
}
return store
}
func TestGuestSessionUpsertAndGetByID(t *testing.T) {
t.Parallel()
ctx := context.Background()
store := openTestStoreWithVMs(t, "vm-1")
session := sampleGuestSession("sess-1", "vm-1", "planner")
if err := store.UpsertGuestSession(ctx, session); err != nil {
t.Fatalf("UpsertGuestSession: %v", err)
}
got, err := store.GetGuestSessionByID(ctx, "sess-1")
if err != nil {
t.Fatalf("GetGuestSessionByID: %v", err)
}
if !reflect.DeepEqual(got, session) {
t.Fatalf("round-trip mismatch:\n got %+v\n want %+v", got, session)
}
}
func TestGuestSessionUpsertIsIdempotent(t *testing.T) {
t.Parallel()
ctx := context.Background()
store := openTestStoreWithVMs(t, "vm-1")
session := sampleGuestSession("sess-1", "vm-1", "planner")
if err := store.UpsertGuestSession(ctx, session); err != nil {
t.Fatalf("UpsertGuestSession (first): %v", err)
}
// Mutate + re-upsert → existing row updated.
session.Command = "pi --other"
session.Status = model.GuestSessionStatus("running")
session.ExitCode = nil
if err := store.UpsertGuestSession(ctx, session); err != nil {
t.Fatalf("UpsertGuestSession (second): %v", err)
}
got, err := store.GetGuestSessionByID(ctx, "sess-1")
if err != nil {
t.Fatalf("GetGuestSessionByID: %v", err)
}
if got.Command != "pi --other" {
t.Errorf("command = %q, want 'pi --other'", got.Command)
}
if got.Status != model.GuestSessionStatus("running") {
t.Errorf("status = %q, want running", got.Status)
}
if got.ExitCode != nil {
t.Errorf("ExitCode = %v, want nil after clearing", got.ExitCode)
}
}
func TestGetGuestSessionByIDOrName(t *testing.T) {
t.Parallel()
ctx := context.Background()
store := openTestStoreWithVMs(t, "vm-1")
session := sampleGuestSession("sess-1", "vm-1", "planner")
if err := store.UpsertGuestSession(ctx, session); err != nil {
t.Fatalf("UpsertGuestSession: %v", err)
}
byID, err := store.GetGuestSession(ctx, "vm-1", "sess-1")
if err != nil {
t.Fatalf("GetGuestSession by ID: %v", err)
}
if byID.ID != "sess-1" {
t.Errorf("by-ID: got %q, want sess-1", byID.ID)
}
byName, err := store.GetGuestSession(ctx, "vm-1", "planner")
if err != nil {
t.Fatalf("GetGuestSession by name: %v", err)
}
if byName.Name != "planner" {
t.Errorf("by-name: got %q, want planner", byName.Name)
}
// Scoped to the VM.
if _, err := store.GetGuestSession(ctx, "vm-unknown", "sess-1"); !errors.Is(err, sql.ErrNoRows) {
t.Errorf("wrong-vm lookup = %v, want sql.ErrNoRows", err)
}
}
func TestListGuestSessionsByVMOrdersByCreatedAt(t *testing.T) {
t.Parallel()
ctx := context.Background()
store := openTestStoreWithVMs(t, "vm-1", "vm-2")
base := fixedTime()
first := sampleGuestSession("sess-early", "vm-1", "first")
first.CreatedAt = base
second := sampleGuestSession("sess-late", "vm-1", "second")
second.CreatedAt = base.Add(time.Hour)
other := sampleGuestSession("sess-other", "vm-2", "other")
for _, s := range []model.GuestSession{second, first, other} {
if err := store.UpsertGuestSession(ctx, s); err != nil {
t.Fatalf("UpsertGuestSession: %v", err)
}
}
sessions, err := store.ListGuestSessionsByVM(ctx, "vm-1")
if err != nil {
t.Fatalf("ListGuestSessionsByVM: %v", err)
}
if len(sessions) != 2 {
t.Fatalf("len = %d, want 2 (vm-1 only)", len(sessions))
}
if sessions[0].ID != "sess-early" || sessions[1].ID != "sess-late" {
t.Fatalf("order: got %q, %q; want sess-early, sess-late", sessions[0].ID, sessions[1].ID)
}
empty, err := store.ListGuestSessionsByVM(ctx, "vm-unknown")
if err != nil {
t.Fatalf("ListGuestSessionsByVM (unknown vm): %v", err)
}
if len(empty) != 0 {
t.Fatalf("unknown vm sessions = %+v, want empty", empty)
}
}
func TestDeleteGuestSession(t *testing.T) {
t.Parallel()
ctx := context.Background()
store := openTestStoreWithVMs(t, "vm-1")
session := sampleGuestSession("sess-1", "vm-1", "planner")
if err := store.UpsertGuestSession(ctx, session); err != nil {
t.Fatalf("UpsertGuestSession: %v", err)
}
if err := store.DeleteGuestSession(ctx, "sess-1"); err != nil {
t.Fatalf("DeleteGuestSession: %v", err)
}
if _, err := store.GetGuestSessionByID(ctx, "sess-1"); !errors.Is(err, sql.ErrNoRows) {
t.Fatalf("after delete err = %v, want sql.ErrNoRows", err)
}
// Deleting something that doesn't exist is a no-op (matches SQL DELETE semantics).
if err := store.DeleteGuestSession(ctx, "sess-nope"); err != nil {
t.Fatalf("DeleteGuestSession on missing row: %v", err)
}
}