add core lib

migrate/migrate_integration_test.go

@@ -0,0 +1,67 @@
+package migrate
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+)
+
+func TestRunMigrationsUpTwice(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	databaseURL := os.Getenv("INTEGRATION_DB_URL")
+	if databaseURL == "" {
+		t.Skip("set INTEGRATION_DB_URL to run migration integration tests")
+	}
+
+	cfg := MigrationConfig{Path: resolveMigrationsPath()}
+	if err := RunMigrationsUp(databaseURL, cfg); err != nil {
+		t.Fatalf("first migrate up: %v", err)
+	}
+	if err := RunMigrationsUp(databaseURL, cfg); err != nil {
+		t.Fatalf("second migrate up: %v", err)
+	}
+
+	status, err := GetMigrationStatus(databaseURL, cfg)
+	if err != nil {
+		t.Fatalf("get migration status: %v", err)
+	}
+	if status.Dirty {
+		t.Fatalf("expected non-dirty migration status")
+	}
+	if status.Version == 0 {
+		t.Fatalf("expected migration version > 0 after up")
+	}
+}
+
+func resolveMigrationsPath() string {
+	configured := os.Getenv("DB_MIGRATIONS_PATH")
+	if configured == "" {
+		configured = "migrations"
+	}
+
+	if filepath.IsAbs(configured) {
+		return configured
+	}
+	if len(configured) >= len("file://") && configured[:len("file://")] == "file://" {
+		return configured
+	}
+	if _, err := os.Stat(configured); err == nil {
+		return configured
+	}
+
+	_, thisFile, _, ok := runtime.Caller(0)
+	if !ok {
+		return configured
+	}
+	moduleRoot := filepath.Clean(filepath.Join(filepath.Dir(thisFile), "..", ".."))
+	candidate := filepath.Join(moduleRoot, configured)
+	if _, err := os.Stat(candidate); err == nil {
+		return candidate
+	}
+
+	return configured
+}