grpc
diff --git a/‎rpc_util_test.go‎
Lines changed: 2 additions & 0 deletions b/‎rpc_util_test.go‎
Lines changed: 2 additions & 0 deletions
@@ -47,6 +47,8 @@ import (
 "google.golang.org/grpc/transport"
 )
 
+var _ CallOption = EmptyCallOption{} // ensure EmptyCallOption implements the interface
+
 func TestSimpleParsing(t *testing.T) {
 bigMsg := bytes.Repeat([]byte{'x'}, 1<<24)
 for _, test := range []struct {
Original file line number	Diff line number	Diff line change
`@@ -47,6 +47,8 @@ import (`
`47`	`47`	`"google.golang.org/grpc/transport"`
`48`	`48`	`)`
`49`	`49`
	`50`	`+var _ CallOption = EmptyCallOption{} // ensure EmptyCallOption implements the interface`
	`51`	`+`
`50`	`52`	`func TestSimpleParsing(t *testing.T) {`
`51`	`53`	`bigMsg := bytes.Repeat([]byte{'x'}, 1<<24)`
`52`	`54`	`for _, test := range []struct {`