// should not result in any allocations.
// This can be used to reset the underlying []byte of an existing Buffer.
func TestNewBufferShallow(t *testing.T) {
	testenv.SkipIfOptimizationOff(t)
	n := testing.AllocsPerRun(1000, func() {
		buf = *NewBuffer(testBytes)
	})
	if n > 0 {
		t.Errorf("allocations occurred while shallow copying")
	}
	check(t, "NewBuffer", &buf, testString)
}

var dots = "1....2....3....4"

type BinOpTest struct {
	a string
	b string
	i int
}

func TestEqual(t *testing.T) {
	// Run the tests and check for allocation at the same time.
	allocs := testing.AllocsPerRun(10, func() {
		for _, tt := range compareTests {
			eql := Equal(tt.a, tt.b)
			if eql != (tt.i == 0) {
				t.Errorf(`Equal(%q, %q) = %v`, tt.a, tt.b, eql)
			}
		}
	})
	if allocs > 0 {

	r := strings.NewReader("       foo       foo        42        42        42        42        42        42        42        42       4.2       4.2       4.2       4.2\n")
	buf := NewReader(r)
	allocs := testing.AllocsPerRun(100, func() {
		r.Seek(0, io.SeekStart)
		buf.Reset(r)

		_, err := buf.ReadString('\n')
		if err != nil {
			t.Fatal(err)
		}
	})
	if allocs != 1 {

pkg syscall, type RawSockaddrInet6 struct, Flowinfo uint32
pkg syscall, type RawSockaddrInet6 struct, Port uint16
pkg syscall, type RawSockaddrInet6 struct, Scope_id uint32
pkg testing, func AllocsPerRun(int, func()) float64
pkg testing, func Verbose() bool
pkg testing, method (*B) ReportAllocs()
pkg testing, method (*B) Skip(...interface{})
pkg testing, method (*B) SkipNow()