html/template: use strings.Builder

Change-Id: Iab6ef8c6c74c09e8358f7d7088a82089725479ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/428260
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/src/html/template/exec_test.go b/src/html/template/exec_test.go
index f042cf5125..1ec346fe81 100644
--- a/src/html/template/exec_test.go
+++ b/src/html/template/exec_test.go
@@ -764,7 +764,7 @@ func mapOfThree() any {
 }
 
 func testExecute(execTests []execTest, template *Template, t *testing.T) {
-	b := new(bytes.Buffer)
+	b := new(strings.Builder)
 	funcs := FuncMap{
 		"add":         add,
 		"count":       count,
@@ -856,7 +856,7 @@ func TestDelims(t *testing.T) {
 		if err != nil {
 			t.Fatalf("delim %q text %q parse err %s", left, text, err)
 		}
-		var b = new(bytes.Buffer)
+		var b = new(strings.Builder)
 		err = tmpl.Execute(b, value)
 		if err != nil {
 			t.Fatalf("delim %q exec err %s", left, err)
@@ -997,7 +997,7 @@ func TestTree(t *testing.T) {
 	if err != nil {
 		t.Fatal("parse error:", err)
 	}
-	var b bytes.Buffer
+	var b strings.Builder
 	const expect = "[1[2[3[4]][5[6]]][7[8[9]][10[11]]]]"
 	// First by looking up the template.
 	err = tmpl.Lookup("tree").Execute(&b, tree)
@@ -1207,7 +1207,7 @@ var cmpTests = []cmpTest{
 }
 
 func TestComparison(t *testing.T) {
-	b := new(bytes.Buffer)
+	b := new(strings.Builder)
 	var cmpStruct = struct {
 		Uthree, Ufour  uint
 		NegOne, Three  int
@@ -1255,7 +1255,7 @@ func TestMissingMapKey(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	var b bytes.Buffer
+	var b strings.Builder
 	// By default, just get "<no value>" // NOTE: not in html/template, get empty string
 	err = tmpl.Execute(&b, data)
 	if err != nil {
@@ -1424,7 +1424,7 @@ func TestBlock(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	var buf bytes.Buffer
+	var buf strings.Builder
 	if err := tmpl.Execute(&buf, "hello"); err != nil {
 		t.Fatal(err)
 	}
@@ -1530,7 +1530,7 @@ func TestAddrOfIndex(t *testing.T) {
 	}
 	for _, text := range texts {
 		tmpl := Must(New("tmpl").Parse(text))
-		var buf bytes.Buffer
+		var buf strings.Builder
 		err := tmpl.Execute(&buf, reflect.ValueOf([]V{{1}}))
 		if err != nil {
 			t.Fatalf("%s: Execute: %v", text, err)
@@ -1586,7 +1586,7 @@ func TestInterfaceValues(t *testing.T) {
 
 	for _, tt := range tests {
 		tmpl := Must(New("tmpl").Parse(tt.text))
-		var buf bytes.Buffer
+		var buf strings.Builder
 		err := tmpl.Execute(&buf, map[string]any{
 			"PlusOne": func(n int) int {
 				return n + 1
@@ -1681,7 +1681,7 @@ func TestIssue31810(t *testing.T) {
 	t.Skip("broken in html/template")
 
 	// A simple value with no arguments is fine.
-	var b bytes.Buffer
+	var b strings.Builder
 	const text = "{{ (.)  }}"
 	tmpl, err := New("").Parse(text)
 	if err != nil {