mirror of https://github.com/siddontang/go.git
73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
// Copyright 2012, Google Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package bytes2 gives you alternate implementations of functionality
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// similar to go's bytes package
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package bytes2
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import (
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"testing"
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)
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func TestWrite(t *testing.T) {
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cw := NewChunkedWriter(5)
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cw.Write([]byte("1234"))
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if string(cw.Bytes()) != "1234" {
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t.Errorf("Expecting 1234, received %s", cw.Bytes())
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}
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cw.WriteString("56")
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if string(cw.Bytes()) != "123456" {
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t.Errorf("Expecting 123456, received %s", cw.Bytes())
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}
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if cw.Len() != 6 {
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t.Errorf("Expecting 6, received %d", cw.Len())
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}
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}
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func TestTruncate(t *testing.T) {
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cw := NewChunkedWriter(3)
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cw.WriteString("123456789")
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cw.Truncate(8)
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if string(cw.Bytes()) != "12345678" {
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t.Errorf("Expecting 12345678, received %s", cw.Bytes())
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}
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cw.Truncate(5)
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if string(cw.Bytes()) != "12345" {
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t.Errorf("Expecting 12345, received %s", cw.Bytes())
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}
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cw.Truncate(2)
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if string(cw.Bytes()) != "12" {
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t.Errorf("Expecting 12345, received %s", cw.Bytes())
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}
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cw.Reset()
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if cw.Len() != 0 {
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t.Errorf("Expecting 0, received %d", cw.Len())
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}
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}
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func TestReserve(t *testing.T) {
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cw := NewChunkedWriter(4)
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b := cw.Reserve(2)
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b[0] = '1'
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b[1] = '2'
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cw.WriteByte('3')
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b = cw.Reserve(2)
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b[0] = '4'
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b[1] = '5'
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if string(cw.Bytes()) != "12345" {
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t.Errorf("Expecting 12345, received %s", cw.Bytes())
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}
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}
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func TestWriteTo(t *testing.T) {
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cw1 := NewChunkedWriter(4)
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cw1.WriteString("123456789")
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cw2 := NewChunkedWriter(5)
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cw1.WriteTo(cw2)
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if string(cw2.Bytes()) != "123456789" {
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t.Errorf("Expecting 123456789, received %s", cw2.Bytes())
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}
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}
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