func TestByteOrder(t *testing.T) {
defer test.New(t)
s := new(Superblock)
currentByteOrder := s.GetByteOrder()
wrongByteOrder := LittleEndian
if wrongByteOrder == currentByteOrder {
wrongByteOrder = BigEndian
}
b := make([]byte, s.Size())
currentByteOrder.Binary().PutUint64(b, uint64(currentByteOrder))
currentByteOrder.Binary().PutUint64(b[8:], 1)
test.Nil(s.Decode(b))
test.Equal(s.Decode(b[:16]), ErrSbInvalid)
test.Equal(s.Decode(b[:15]), ErrSbInvalidLen)
binary.LittleEndian.PutUint64(b[8:], 0)
test.Equal(s.Decode(b), ErrSbInvalidVersion)
binary.LittleEndian.PutUint64(b, uint64(wrongByteOrder))
test.Equal(s.Decode(b), ErrByteOrderNotEqual)
LittleEndian.String()
BigEndian.String()
ByteOrder(-1).String()
wrongByteOrder.Binary()
}
func TestCheckSizeV1(t *testing.T) {
defer test.New(t)
s := SuperblockV1{}
size := int(unsafe.Sizeof(s))
test.Equal(size, ReserveBlockSize)
size = int(unsafe.Sizeof(s) - unsafe.Sizeof(s.IndirectAddr))
test.Equal(size, MetaSize)
size = int(unsafe.Sizeof(InodeIndex{}))
test.Equal(size, 32)
maxRecordNum := len(s.IndirectAddr) * BlockSize / size
test.Equal(maxRecordNum < 1<<20, false)
test.Equal(maxRecordNum > 5<<20, false, fmt.Errorf("%v", maxRecordNum))
}
func TestEncodeDecode(t *testing.T) {
defer test.New(t)
s := new(Superblock)
s.SuperblockV1 = new(SuperblockV1)
s.Version = 1
s.CheckPoint = 2
s.BlockBit = 3
s.IndirectAddr[0] = int64(qrand.RandInt(1024))
s.IndirectAddr[BlockSize-1] = 5
target := s.Encode()
s2 := new(Superblock)
test.Nil(s2.Decode(target))
test.Equal(s.SuperblockV1, s2.SuperblockV1)
test.Equal(s.IndirectAddr[0], s2.IndirectAddr[0])
}
func TestVolume(t *testing.T) {
defer test.New(t)
v, err := NewVolume("hello")
test.Nil(err)
v.Open("hello")
_, err = NewVolume("!hello")
test.Equal(err, ErrInvalidVolmueName)
}
func TestReaderWriter(t *testing.T) {
defer test.New(t)
var n int
f, err := os.Create(root)
test.Nil(err)
w := NewWriter(f, 1)
offset, _ := w.Seek(-1, 1)
test.NotEqual(offset, 0)
_, err = w.Write([]byte("caoo"))
test.Nil(err)
defer w.Close()
// |caoo
_, err = w.Seek(0, 2)
test.Equal(err, ErrSeekNotSupport)
_, err = w.Seek(1, 0)
test.Nil(err)
n, err = w.Write([]byte("j"))
test.Equals(err, nil, n, 1)
// cj|oo
r := NewReader(f, 0)
defer r.Close()
_, err = r.Seek(1, 1)
test.Nil(err)
// c|joo
_, err = r.Seek(0, 2)
test.Equal(err, ErrSeekNotSupport)
buf := make([]byte, 3)
n, err = r.Read(buf)
test.Equals(n, 3, err, nil, buf, []byte("joo"))
// cjoo|
_, err = r.Seek(0, 0)
test.Nil(err)
}
func TestBlockException(t *testing.T) {
defer test.New(t)
_, err := New(root, 0, 33)
test.NotNil(err)
_, err = New("/notperm", 0, 11)
test.NotNil(err)
f, err := New(root, 0, 10)
test.Nil(err)
err = f.Delete(false)
test.Nil(err)
_, err = f.ReadAt(nil, -1)
test.Equal(err, ErrInvalidOffset)
test.Equal(f.Close(), true)
test.Equal(f.Close(), false)
test.Equal(f.Delete(false), nil)
_, err = f.WriteAt(nil, 1)
test.Equal(err, ErrBlockClosed)
_, err = f.ReadAt(nil, 1)
test.Equal(err, ErrBlockClosed)
}
func TestBlock(t *testing.T) {
defer test.New(t)
f, err := New(root, 0, 2)
test.Nil(err)
test.Nil(f.Delete(false))
defer f.Close()
buf := bytes.Repeat([]byte("ha"), 1024)
n, err := f.WriteAt(buf, 1)
test.Nil(err)
test.Equal(n, len(buf))
buf2 := make([]byte, len(buf))
n, err = f.ReadAt(buf2, 0)
test.Nil(err)
test.Equal(n, len(buf2))
test.Equal(buf[:len(buf)-1], buf2[1:])
n, err = f.ReadAt([]byte(" "), 1024*2+1)
test.Equals(n, 0, err, io.EOF)
n, err = f.ReadAt([]byte(" "), 0)
test.Equals(n, 2, err, nil)
n, err = f.ReadAt([]byte(" "), 0)
test.Equals(n, 2, err, nil)
os.RemoveAll(root)
n, err = f.ReadAt([]byte(" "), 4)
test.Equals(n, 0)
test.CheckError(err, test.StrNotSuchFile)
n, err = f.WriteAt([]byte(" "), 4)
test.Equals(n, 0)
test.CheckError(err, test.StrNotSuchFile)
}