func TestReadNextChunk(t *testing.T) {
s := wire.NewSyncScanner(strings.NewReader(
"DATA\006\000\000\000hello DATA\005\000\000\000worldDONE"))
// Read 1st chunk
reader, err := readNextChunk(s)
assert.NoError(t, err)
assert.Equal(t, int64(6), reader.(*io.LimitedReader).N)
buf := make([]byte, 10)
n, err := reader.Read(buf)
assert.NoError(t, err)
assert.Equal(t, 6, n)
assert.Equal(t, "hello ", string(buf[:6]))
// Read 2nd chunk
reader, err = readNextChunk(s)
assert.NoError(t, err)
assert.Equal(t, int64(5), reader.(*io.LimitedReader).N)
buf = make([]byte, 10)
n, err = reader.Read(buf)
assert.NoError(t, err)
assert.Equal(t, 5, n)
assert.Equal(t, "world", string(buf[:5]))
// Read DONE
_, err = readNextChunk(s)
assert.Equal(t, io.EOF, err)
}
func TestReadNextChunkInvalidChunkId(t *testing.T) {
s := wire.NewSyncScanner(strings.NewReader(
"ATAD\006\000\000\000hello "))
// Read 1st chunk
_, err := readNextChunk(s)
assert.EqualError(t, err, "expected chunk id 'DATA', but got 'ATAD'")
}
func TestStatBadResponse(t *testing.T) {
var buf bytes.Buffer
conn := &wire.SyncConn{wire.NewSyncScanner(&buf), wire.NewSyncSender(&buf)}
conn.SendOctetString("SPAT")
entry, err := stat(conn, "/")
assert.Nil(t, entry)
assert.Error(t, err)
}
func TestReadAll(t *testing.T) {
s := wire.NewSyncScanner(strings.NewReader(
"DATA\006\000\000\000hello DATA\005\000\000\000worldDONE"))
reader := newSyncFileReader(s)
buf := make([]byte, 20)
_, err := io.ReadFull(reader, buf)
assert.Equal(t, io.ErrUnexpectedEOF, err)
assert.Equal(t, "hello world\000", string(buf[:12]))
}
func TestStatNoExist(t *testing.T) {
var buf bytes.Buffer
conn := &wire.SyncConn{wire.NewSyncScanner(&buf), wire.NewSyncSender(&buf)}
conn.SendOctetString("STAT")
conn.SendFileMode(0)
conn.SendInt32(0)
conn.SendTime(time.Unix(0, 0).UTC())
entry, err := stat(conn, "/")
assert.Nil(t, entry)
assert.Equal(t, util.FileNoExistError, err.(*util.Err).Code)
}
func TestStatValid(t *testing.T) {
var buf bytes.Buffer
conn := &wire.SyncConn{wire.NewSyncScanner(&buf), wire.NewSyncSender(&buf)}
var mode os.FileMode = 0777
conn.SendOctetString("STAT")
conn.SendFileMode(mode)
conn.SendInt32(4)
conn.SendTime(someTime)
entry, err := stat(conn, "/thing")
assert.NoError(t, err)
require.NotNil(t, entry)
assert.Equal(t, mode, entry.Mode, "expected os.FileMode %s, got %s", mode, entry.Mode)
assert.Equal(t, int32(4), entry.Size)
assert.Equal(t, someTime, entry.ModifiedAt)
assert.Equal(t, "", entry.Name)
}
func TestReadMultipleCalls(t *testing.T) {
s := wire.NewSyncScanner(strings.NewReader(
"DATA\006\000\000\000hello DATA\005\000\000\000worldDONE"))
reader := newSyncFileReader(s)
firstByte := make([]byte, 1)
_, err := io.ReadFull(reader, firstByte)
assert.NoError(t, err)
assert.Equal(t, "h", string(firstByte))
restFirstChunkBytes := make([]byte, 5)
_, err = io.ReadFull(reader, restFirstChunkBytes)
assert.NoError(t, err)
assert.Equal(t, "ello ", string(restFirstChunkBytes))
secondChunkBytes := make([]byte, 5)
_, err = io.ReadFull(reader, secondChunkBytes)
assert.NoError(t, err)
assert.Equal(t, "world", string(secondChunkBytes))
_, err = io.ReadFull(reader, make([]byte, 5))
assert.Equal(t, io.EOF, err)
}
