bindings/go: Adjust tests for multiple concurrent connections

bindings/go/limbo_unix.go

@@ -13,7 +13,7 @@ import (
 	"github.com/ebitengine/purego"
 )
 
-func loadLibrary() error {
+func loadLibrary() (uintptr, error) {
 	var libraryName string
 	switch runtime.GOOS {
 	case "darwin":
@@ -21,14 +21,14 @@ func loadLibrary() error {
 	case "linux":
 		libraryName = fmt.Sprintf("%s.so", libName)
 	default:
-		return fmt.Errorf("GOOS=%s is not supported", runtime.GOOS)
+		return 0, fmt.Errorf("GOOS=%s is not supported", runtime.GOOS)
 	}
 
 	libPath := os.Getenv("LD_LIBRARY_PATH")
 	paths := strings.Split(libPath, ":")
 	cwd, err := os.Getwd()
 	if err != nil {
-		return err
+		return 0, err
 	}
 	paths = append(paths, cwd)
 
@@ -37,20 +37,18 @@ func loadLibrary() error {
 		if _, err := os.Stat(libPath); err == nil {
 			slib, dlerr := purego.Dlopen(libPath, purego.RTLD_NOW|purego.RTLD_GLOBAL)
 			if dlerr != nil {
-				return fmt.Errorf("failed to load library at %s: %w", libPath, dlerr)
+				return 0, fmt.Errorf("failed to load library at %s: %w", libPath, dlerr)
 			}
-			limboLib = slib
-			return nil
+			return slib, nil
 		}
 	}
-	return fmt.Errorf("%s library not found in LD_LIBRARY_PATH or CWD", libName)
+	return 0, fmt.Errorf("%s library not found in LD_LIBRARY_PATH or CWD", libName)
 }
 
 func init() {
-	err := loadLibrary()
+	err := ensureLibLoaded()
 	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
+		panic(err)
 	}
 	sql.Register("sqlite3", &limboDriver{})
 }