pr feedback

test/fuzz/rpc/jsonrpc/server/fuzz_test.go

@@ -1,16 +1,16 @@
 package server_test
 
 import (
-	"fmt"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/require"
 	"github.com/tendermint/tendermint/test/fuzz/rpc/jsonrpc/server"
 )
 
-const testdataDir = "./testdata"
+const testdataDir = "testdata"
 
 func TestServerOnTestData(t *testing.T) {
 	entries, err := os.ReadDir(testdataDir)
@@ -23,7 +23,7 @@ func TestServerOnTestData(t *testing.T) {
 				r := recover()
 				require.Nilf(t, r, "testdata test panic")
 			}()
-			f, err := os.Open(fmt.Sprintf("%s/%s", testdataDir, e.Name()))
+			f, err := os.Open(filepath.Join(testdataDir, entry.Name()))
 			require.NoError(t, err)
 			input, err := ioutil.ReadAll(f)
 			require.NoError(t, err)

test/fuzz/rpc/jsonrpc/server/handler.go

@@ -60,8 +60,5 @@ func Fuzz(data []byte) int {
 func inputJSONIsSlice(input []byte) bool {
 	slice := []interface{}{}
 	err := json.Unmarshal(input, &slice)
-	if err != nil {
-		return false
-	}
-	return true
+	return err == nil
 }