From 8b74d9421af61f93476d733f5c606ad4da317293 Mon Sep 17 00:00:00 2001
From: Daisuke Maki <lestrrat+github@gmail.com>
Date: Fri, 20 Feb 2026 10:22:58 +0900
Subject: [PATCH] standardize on using testify/require

---
 internal/keyseq/ahocorasick_test.go | 31 +++++++++++------------------
 internal/keyseq/ternary_test.go     | 10 ++++++----
 internal/keyseq/trie_test.go        | 22 +++++++-------------
 selection_test.go                   | 17 +++++-----------
 4 files changed, 30 insertions(+), 50 deletions(-)

diff --git a/internal/keyseq/ahocorasick_test.go b/internal/keyseq/ahocorasick_test.go
index 4ab56e4..850afc7 100644
--- a/internal/keyseq/ahocorasick_test.go
+++ b/internal/keyseq/ahocorasick_test.go
@@ -2,31 +2,24 @@ package keyseq
 
 import (
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func checkNode(t *testing.T, node Node, size int, data nodeData) {
-	if node == nil {
-		t.Error("Nil node:", data)
-	}
-	if node.Size() != size {
-		t.Errorf("Unexpected childrens: %d != %d", node.Size(), size)
-	}
+	require.NotNil(t, node, "Nil node:", data)
+	require.Equal(t, size, node.Size(), "Unexpected childrens")
 	d := node.Value().(*nodeData)
-	if d == nil {
-		t.Error("Nil data:", data, node)
+	require.NotNil(t, d, "Nil data:", data, node)
+	if data.pattern != nil {
+		require.True(t, d.pattern.Equals(*data.pattern), "Pattern unmatched:", data, node, *d.pattern)
 	}
-	if data.pattern != nil && !d.pattern.Equals(*data.pattern) {
-		t.Error("Pattern unmatched:", data, node, *d.pattern)
-	}
-	if data.value != nil && d.value != data.value {
-		t.Error("Value unmatched:", data, node, d.value)
-	}
-	if d.failure == nil {
-		t.Error("Nil failure:", data, node)
-	} else if d.failure != data.failure {
-		t.Errorf("Failure unmatched: data=%+v node=%+v d.failure=%+v",
-			data, node, d.failure)
+	if data.value != nil {
+		require.Equal(t, data.value, d.value, "Value unmatched:", data, node, d.value)
 	}
+	require.NotNil(t, d.failure, "Nil failure:", data, node)
+	require.Equal(t, data.failure, d.failure, "Failure unmatched: data=%+v node=%+v d.failure=%+v",
+		data, node, d.failure)
 }
 
 func invalidData(failure Node) nodeData {
diff --git a/internal/keyseq/ternary_test.go b/internal/keyseq/ternary_test.go
index 6b82bee..b8dc1d1 100644
--- a/internal/keyseq/ternary_test.go
+++ b/internal/keyseq/ternary_test.go
@@ -1,6 +1,10 @@
 package keyseq
 
-import "testing"
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
 
 func TestBalance(t *testing.T) {
 	trie := NewTernaryTrie()
@@ -13,9 +17,7 @@ func TestBalance(t *testing.T) {
 	for i, k := range list {
 		trie.Put(KeyList{k}, i)
 	}
-	if s := trie.Size(); s != 15 {
-		t.Fatalf("Size() returns not 15: %d", s)
-	}
+	require.Equal(t, 15, trie.Size())
 	trie.Balance()
 
 	/*
diff --git a/internal/keyseq/trie_test.go b/internal/keyseq/trie_test.go
index d66dfae..bb39933 100644
--- a/internal/keyseq/trie_test.go
+++ b/internal/keyseq/trie_test.go
@@ -2,18 +2,14 @@ package keyseq
 
 import (
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func checkTrieNode(t *testing.T, n Node, k Key, value int) {
-	if n == nil {
-		t.Fatal("TrieNode is null")
-	}
-	if l := n.Label(); l != k {
-		t.Errorf("TrieNode.Label() expected:'%c' actual:'%c'", k, l)
-	}
-	if v := n.Value().(int); v != value {
-		t.Errorf("TrieNode.Value() expected:%d actual:%d", value, v)
-	}
+	require.NotNil(t, n, "TrieNode is null")
+	require.Equal(t, k, n.Label(), "TrieNode.Label()")
+	require.Equal(t, value, n.Value().(int), "TrieNode.Value()")
 }
 
 func TestTrie(t *testing.T) {
@@ -27,14 +23,10 @@ func TestTrie(t *testing.T) {
 		checkTrieNode(t, nodes[i], Key{0, 0, rune(i + 1)}, 111*(i+1))
 	}
 
-	if s := trie.Size(); s != 5 {
-		t.Errorf("trie.Size() returns not 5: %d", s)
-	}
+	require.Equal(t, 5, trie.Size())
 }
 
 func TestNotFound(t *testing.T) {
 	trie := NewTrie()
-	if trie.Get(Key{999, 999, 'a'}) != nil {
-		t.Errorf("found 'not_exist' in empty trie")
-	}
+	require.Nil(t, trie.Get(Key{999, 999, 'a'}))
 }
diff --git a/selection_test.go b/selection_test.go
index fefe30e..4cc8a3b 100644
--- a/selection_test.go
+++ b/selection_test.go
@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	"github.com/peco/peco/line"
+	"github.com/stretchr/testify/require"
 )
 
 func TestSelection(t *testing.T) {
@@ -13,19 +14,11 @@ func TestSelection(t *testing.T) {
 	alice := line.NewRaw(i, "Alice", false, false)
 	i++
 	s.Add(alice)
-	if s.Len() != 1 {
-		t.Errorf("expected Len = 1, got %d", s.Len())
-	}
+	require.Equal(t, 1, s.Len())
 	s.Add(line.NewRaw(i, "Bob", false, false))
-	if s.Len() != 2 {
-		t.Errorf("expected Len = 2, got %d", s.Len())
-	}
+	require.Equal(t, 2, s.Len())
 	s.Add(alice)
-	if s.Len() != 2 {
-		t.Errorf("expected Len = 2, got %d", s.Len())
-	}
+	require.Equal(t, 2, s.Len())
 	s.Remove(alice)
-	if s.Len() != 1 {
-		t.Errorf("expected Len = 1, got %d", s.Len())
-	}
+	require.Equal(t, 1, s.Len())
 }