1// Copyright 2022 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package buffer 6 7import ( 8 "internal/race" 9 "internal/testenv" 10 "testing" 11) 12 13func Test(t *testing.T) { 14 b := New() 15 defer b.Free() 16 b.WriteString("hello") 17 b.WriteByte(',') 18 b.Write([]byte(" world")) 19 20 got := b.String() 21 want := "hello, world" 22 if got != want { 23 t.Errorf("got %q, want %q", got, want) 24 } 25} 26 27func TestAlloc(t *testing.T) { 28 if race.Enabled { 29 t.Skip("skipping test in race mode") 30 } 31 testenv.SkipIfOptimizationOff(t) 32 got := int(testing.AllocsPerRun(5, func() { 33 b := New() 34 defer b.Free() 35 b.WriteString("not 1K worth of bytes") 36 })) 37 if got != 0 { 38 t.Errorf("got %d allocs, want 0", got) 39 } 40} 41