move more args of Upstream() to upstream Options

server/utils/utils_test.go

@@ -0,0 +1,13 @@
+package utils
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTrimHostPort(t *testing.T) {
+	assert.EqualValues(t, "aa", TrimHostPort([]byte("aa")))
+	assert.EqualValues(t, "", TrimHostPort([]byte(":")))
+	assert.EqualValues(t, "example.com", TrimHostPort([]byte("example.com:80")))
+}