package db

import (
	"context"
	"database/sql"
	"testing"
)

func TestOpenAndMigrateCreatesCoreTables(t *testing.T) {
	store, err := Open(":memory:")
	if err != nil {
		t.Fatalf("Open() error = %v", err)
	}
	defer store.Close()

	if err := store.Migrate(context.Background()); err != nil {
		t.Fatalf("Migrate() error = %v", err)
	}

	var name string
	err = store.DB.QueryRowContext(context.Background(), "SELECT name FROM sqlite_master WHERE type='table' AND name='mail_messages'").Scan(&name)
	if err != nil {
		t.Fatalf("mail_messages table missing: %v", err)
	}

	err = store.DB.QueryRowContext(context.Background(), "SELECT name FROM sqlite_master WHERE type='table' AND name='sent_messages'").Scan(&name)
	if err != nil && err != sql.ErrNoRows {
		t.Fatalf("sent_messages lookup failed: %v", err)
	}
	if name != "sent_messages" {
		t.Fatalf("sent_messages table missing, got %q", name)
	}
}