modify proxy handler

test_helpers_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"os"
 	"path/filepath"
 	"runtime"
 	"testing"
@@ -10,8 +11,20 @@ var repoRoot string
 
 func init() {
 	_, file, _, ok := runtime.Caller(0)
-	if ok {
-		repoRoot = filepath.Join(filepath.Dir(file), "..", "..")
+	if !ok {
+		return
+	}
+	dir := filepath.Dir(file)
+	for {
+		if _, err := os.Stat(filepath.Join(dir, "go.mod")); err == nil {
+			repoRoot = dir
+			return
+		}
+		parent := filepath.Dir(dir)
+		if parent == dir {
+			return
+		}
+		dir = parent
 	}
 }