Add test for calling stack.FunctionID from anonymous go call

Author: anatoly32322

internal/stack/function_id_test.go

@@ -2,6 +2,7 @@ package stack
 
 import (
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/require"
 )
@@ -22,6 +23,15 @@ func (e *starType) starredCall() string {
 	return FunctionID("").FunctionID()
 }
 
+func anonymousFunctionCall() string {
+	var result string
+	go func() {
+		result = FunctionID("").FunctionID()
+	}()
+	time.Sleep(time.Second)
+	return result
+}
+
 func TestFunctionIDForGenericType(t *testing.T) {
 	t.Run("StaticFunc", func(t *testing.T) {
 		require.Equal(t,
@@ -42,4 +52,10 @@ func TestFunctionIDForGenericType(t *testing.T) {
 			x.starredCall(),
 		)
 	})
+	t.Run("AnonymousFunctionCall", func(t *testing.T) {
+		require.Equal(t,
+			"github.com/ydb-platform/ydb-go-sdk/v3/internal/stack.anonymousFunctionCall",
+			anonymousFunctionCall(),
+		)
+	})
 }