av/codec/codecutil/bytescanner_test.go

83 lines
2.1 KiB
Go

/*
NAME
bytescanner_test.go
DESCRIPTION
See Readme.md
AUTHOR
Dan Kortschak <dan@ausocean.org>
LICENSE
This is Copyright (C) 2017 the Australian Ocean Lab (AusOcean)
It is free software: you can redistribute it and/or modify them
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
It is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
in gpl.txt. If not, see http://www.gnu.org/licenses.
*/
package codecutil
import (
"bytes"
"reflect"
"testing"
)
type chunkEncoder [][]byte
func (e *chunkEncoder) Encode(b []byte) error {
*e = append(*e, b)
return nil
}
func (*chunkEncoder) Stream() <-chan []byte { panic("INVALID USE") }
func TestScannerReadByte(t *testing.T) {
data := []byte("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.")
for _, size := range []int{1, 2, 8, 1 << 10} {
r := NewByteScanner(bytes.NewReader(data), make([]byte, size))
var got []byte
for {
b, err := r.ReadByte()
if err != nil {
break
}
got = append(got, b)
}
if !bytes.Equal(got, data) {
t.Errorf("unexpected result for buffer size %d:\ngot :%q\nwant:%q", size, got, data)
}
}
}
func TestScannerScanUntilZero(t *testing.T) {
data := []byte("Lorem ipsum dolor sit amet, consectetur adipiscing elit,\x00 sed do eiusmod tempor incididunt ut \x00labore et dolore magna aliqua.")
for _, size := range []int{1, 2, 8, 1 << 10} {
r := NewByteScanner(bytes.NewReader(data), make([]byte, size))
var got [][]byte
for {
buf, _, err := r.ScanUntil(nil, 0x0)
got = append(got, buf)
if err != nil {
break
}
}
want := bytes.SplitAfter(data, []byte{0})
if !reflect.DeepEqual(got, want) {
t.Errorf("unexpected result for buffer zie %d:\ngot :%q\nwant:%q", size, got, want)
}
}
}