func TestBitStreamEOF(t *testing.T) {
br := tsm1.NewReader(strings.NewReader("0"))
b, err := br.ReadByte()
if b != '0' {
t.Error("ReadByte didn't return first byte")
}
_, err = br.ReadByte()
if err != io.EOF {
t.Error("ReadByte on empty string didn't return EOF")
}
// 0 = 0b00110000
br = tsm1.NewReader(strings.NewReader("0"))
buf := bytes.NewBuffer(nil)
bw := bitstream.NewWriter(buf)
for i := 0; i < 4; i++ {
bit, err := br.ReadBit()
if err == io.EOF {
break
}
if err != nil {
t.Error("GetBit returned error err=", err.Error())
return
}
bw.WriteBit(bitstream.Bit(bit))
}
bw.Flush(bitstream.One)
err = bw.WriteByte(0xAA)
if err != nil {
t.Error("unable to WriteByte")
}
c := buf.Bytes()
if len(c) != 2 || c[1] != 0xAA || c[0] != 0x3f {
t.Error("bad return from 4 read bytes")
}
_, err = tsm1.NewReader(strings.NewReader("")).ReadBit()
if err != io.EOF {
t.Error("ReadBit on empty string didn't return EOF")
}
}
func TestByteStream(t *testing.T) {
buf := bytes.NewBuffer(nil)
br := tsm1.NewReader(strings.NewReader("hello"))
bw := bitstream.NewWriter(buf)
for i := 0; i < 3; i++ {
bit, err := br.ReadBit()
if err == io.EOF {
break
}
if err != nil {
t.Error("GetBit returned error err=", err.Error())
return
}
bw.WriteBit(bitstream.Bit(bit))
}
for i := 0; i < 3; i++ {
byt, err := br.ReadByte()
if err == io.EOF {
break
}
if err != nil {
t.Error("GetByte returned error err=", err.Error())
return
}
bw.WriteByte(byt)
}
u, err := br.ReadBits(13)
if err != nil {
t.Error("ReadBits returned error err=", err.Error())
return
}
bw.WriteBits(u, 13)
bw.WriteBits(('!'<<12)|('.'<<4)|0x02, 20)
// 0x2f == '/'
bw.Flush(bitstream.One)
s := buf.String()
if s != "hello!./" {
t.Errorf("expected 'hello!./', got=%x", []byte(s))
}
}
func TestBitStream(t *testing.T) {
buf := bytes.NewBuffer(nil)
br := tsm1.NewReader(strings.NewReader("hello"))
bw := bitstream.NewWriter(buf)
for {
bit, err := br.ReadBit()
if err == io.EOF {
break
}
if err != nil {
t.Error("GetBit returned error err=", err.Error())
return
}
bw.WriteBit(bitstream.Bit(bit))
}
s := buf.String()
if s != "hello" {
t.Error("expected 'hello', got=", []byte(s))
}
}