待ち行列への登録と状態表示を追加（新着からの登録、/queue、DATABASE_URL）

cmd/web/main_test.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+func TestOpenDatabaseRequiresURLAndRunsMigration(t *testing.T) {
+	ctx := context.Background()
+	connectCalls, migrateCalls := 0, 0
+	connect := func(_ context.Context, url string) (*pgxpool.Pool, error) {
+		connectCalls++
+		if url != "postgres://test:secret@localhost/test" {
+			t.Errorf("URL = %q", url)
+		}
+		return pgxpool.New(ctx, url)
+	}
+	migrate := func(_ context.Context, _ *pgxpool.Pool) error {
+		migrateCalls++
+		return nil
+	}
+	if _, err := openDatabase(ctx, " ", connect, migrate); err == nil || !strings.Contains(err.Error(), "DATABASE_URL") {
+		t.Fatalf("未設定 URL のエラー: %v", err)
+	}
+	if connectCalls != 0 || migrateCalls != 0 {
+		t.Fatalf("未設定でも接続・移行された: %d %d", connectCalls, migrateCalls)
+	}
+	pool, err := openDatabase(ctx, "postgres://test:secret@localhost/test", connect, migrate)
+	if err != nil || pool == nil {
+		t.Fatalf("DB 初期化: %v", err)
+	}
+	pool.Close()
+	if connectCalls != 1 || migrateCalls != 1 {
+		t.Fatalf("接続・移行回数: %d %d", connectCalls, migrateCalls)
+	}
+}
+
+func TestOpenDatabaseReportsMigrationFailure(t *testing.T) {
+	ctx := context.Background()
+	pool, err := openDatabase(ctx, "postgres://test:secret@localhost/test", pgxpool.New,
+		func(context.Context, *pgxpool.Pool) error { return errors.New("migration failed") })
+	if pool != nil || err == nil || !strings.Contains(err.Error(), "migration failed") {
+		t.Fatalf("移行失敗: pool=%v err=%v", pool, err)
+	}
+}
+
+func TestOpenDatabaseReportsConnectionFailureWithoutLeakingURL(t *testing.T) {
+	migrateCalled := false
+	pool, err := openDatabase(context.Background(), "postgres://user:secret@localhost/test",
+		func(context.Context, string) (*pgxpool.Pool, error) {
+			return nil, errors.New("postgres://user:secret@localhost/test: connection refused")
+		},
+		func(context.Context, *pgxpool.Pool) error {
+			migrateCalled = true
+			return nil
+		})
+	if pool != nil || err == nil || strings.Contains(err.Error(), "secret") || migrateCalled {
+		t.Fatalf("接続失敗: pool=%v err=%v migrateCalled=%v", pool, err, migrateCalled)
+	}
+}
+
+func TestOpenDatabaseDoesNotExposeInvalidURL(t *testing.T) {
+	_, err := openDatabase(context.Background(), "postgres://user:secret@%", pgxpool.New,
+		func(context.Context, *pgxpool.Pool) error { t.Fatal("移行してはいけない"); return nil })
+	if err == nil || strings.Contains(err.Error(), "secret") {
+		t.Fatalf("接続 URL の秘匿: %v", err)
+	}
+}