From 3cb2a8fc8e66d573da9eb21f31f514db7ea260df Mon Sep 17 00:00:00 2001
From: Noboru Saito <noborusai@gmail.com>
Date: Mon, 23 Oct 2023 10:36:47 +0900
Subject: [PATCH 1/2] Refactor error handling to use error.As

---
 main.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index d1acc1f..2e18560 100644
--- a/main.go
+++ b/main.go
@@ -473,8 +473,9 @@ func initConfig() {
 
 	// If a config file is found, read it in.
 	if err := viper.ReadInConfig(); err != nil {
-		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
-			fmt.Fprintln(os.Stderr, err)
+		var configNotFoundError *viper.ConfigFileNotFoundError
+		if !errors.As(err, &configNotFoundError) {
+			fmt.Fprintln(os.Stderr, "failed to read config file:", err)
 			return
 		}
 	}

From 7435a44939ee53506af353bf1a952627b1818a19 Mon Sep 17 00:00:00 2001
From: Noboru Saito <noborusai@gmail.com>
Date: Mon, 23 Oct 2023 10:38:54 +0900
Subject: [PATCH 2/2] Fixed unnecessary mutex definition

---
 oviewer/input_test.go | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/oviewer/input_test.go b/oviewer/input_test.go
index 5e68b12..bb2447c 100644
--- a/oviewer/input_test.go
+++ b/oviewer/input_test.go
@@ -1,7 +1,6 @@
 package oviewer
 
 import (
-	"sync"
 	"testing"
 
 	"github.com/gdamore/tcell/v2"
@@ -117,7 +116,6 @@ func TestInput_keyEvent(t *testing.T) {
 
 func Test_candidate_up(t *testing.T) {
 	type fields struct {
-		mux  sync.Mutex
 		list []string
 		p    int
 	}
@@ -145,11 +143,9 @@ func Test_candidate_up(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			c := &candidate{
-				mux:  tt.fields.mux,
-				list: tt.fields.list,
-				p:    tt.fields.p,
-			}
+			c := searchCandidate()
+			c.list = tt.fields.list
+			c.p = tt.fields.p
 			if got := c.up(); got != tt.want {
 				t.Errorf("candidate.up() = %v, want %v", got, tt.want)
 			}
@@ -159,7 +155,6 @@ func Test_candidate_up(t *testing.T) {
 
 func Test_candidate_down(t *testing.T) {
 	type fields struct {
-		mux  sync.Mutex
 		list []string
 		p    int
 	}
@@ -187,11 +182,9 @@ func Test_candidate_down(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			c := &candidate{
-				mux:  tt.fields.mux,
-				list: tt.fields.list,
-				p:    tt.fields.p,
-			}
+			c := searchCandidate()
+			c.list = tt.fields.list
+			c.p = tt.fields.p
 			if got := c.down(); got != tt.want {
 				t.Errorf("candidate.down() = %v, want %v", got, tt.want)
 			}