feat: 基础框架搭建完毕

internal/database/database_test.go

@@ -0,0 +1,67 @@
+package database
+
+import (
+	"context"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+// Integration testing uses a disposable schema on an explicitly provided test database.
+func TestMigrationIntegration(t *testing.T) {
+	dsn := os.Getenv("VEYRA_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("set VEYRA_TEST_DATABASE_URL to run PostgreSQL integration tests")
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	admin, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer admin.Close()
+	schema := "veyra_test_" + strings.ReplaceAll(uuid.NewString(), "-", "")
+	if _, err := admin.Exec(ctx, "CREATE SCHEMA "+schema); err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		if _, err := admin.Exec(context.Background(), "DROP SCHEMA "+schema+" CASCADE"); err != nil {
+			t.Error(err)
+		}
+	}()
+	cfg, err := pgxpool.ParseConfig(dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cfg.ConnConfig.RuntimeParams["search_path"] = schema
+	pool, err := pgxpool.NewWithConfig(ctx, cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer pool.Close()
+	for i := 0; i < 2; i++ {
+		if err := Migrate(ctx, pool); err != nil {
+			t.Fatal(err)
+		}
+	}
+	var count int
+	if err := pool.QueryRow(ctx, "SELECT count(*) FROM veyra_schema_migration").Scan(&count); err != nil || count != 2 {
+		t.Fatalf("migration ledger count=%d err=%v", count, err)
+	}
+	if _, err := pool.Exec(ctx, "INSERT INTO veyra_user(id,display_name) VALUES($1,$2)", uuid.NewString(), "Test"); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := pool.Exec(ctx, "INSERT INTO veyra_user(id,display_name) VALUES('invalid','Test')"); err == nil {
+		t.Fatal("invalid UUID was accepted")
+	}
+	if _, err := pool.Exec(ctx, "UPDATE veyra_schema_migration SET checksum='changed'"); err != nil {
+		t.Fatal(err)
+	}
+	if err := Migrate(ctx, pool); err == nil {
+		t.Fatal("modified migration checksum was accepted")
+	}
+}