func (s *realSender) SendMessage(msg []byte) error {
if len(msg) > MaxMessageLength {
return util.AssertionErrorf("message length exceeds maximum: %d", len(msg))
}
lengthAndMsg := fmt.Sprintf("%04x%s", len(msg), msg)
return writeFully(s.writer, []byte(lengthAndMsg))
}
func (s *realSyncSender) SendOctetString(str string) error {
if len(str) != 4 {
return util.AssertionErrorf("octet string must be exactly 4 bytes: '%s'", str)
}
wrappedErr := util.WrapErrorf(writeFully(s.Writer, []byte(str)),
util.NetworkError, "error sending octet string on sync sender")
return wrappedErr
}
func RequireOctetString(s SyncScanner, expected string) error {
actual, err := s.ReadOctetString()
if err != nil {
return util.WrapErrorf(err, util.NetworkError, "expected to read '%s'", expected)
}
if actual != expected {
return util.AssertionErrorf("expected to read '%s', got '%s'", expected, actual)
}
return nil
}
func newDevice(serial string, attrs map[string]string) (*DeviceInfo, error) {
if serial == "" {
return nil, util.AssertionErrorf("device serial cannot be blank")
}
return &DeviceInfo{
Serial: serial,
Product: attrs["product"],
Model: attrs["model"],
DeviceInfo: attrs["device"],
Usb: attrs["usb"],
}, nil
}
func (s *realSyncSender) SendString(str string) error {
length := len(str)
if length > MaxChunkSize {
// This limit might not apply to filenames, but it's big enough
// that I don't think it will be a problem.
return util.AssertionErrorf("str must be <= %d in length", MaxChunkSize)
}
if err := s.SendInt32(int32(length)); err != nil {
return util.WrapErrorf(err, util.NetworkError, "error sending string length on sync sender")
}
return util.WrapErrorf(writeFully(s.Writer, []byte(str)),
util.NetworkError, "error sending string on sync sender")
}
// prepareCommandLine validates the command and argument strings, quotes
// arguments if required, and joins them into a valid adb command string.
func prepareCommandLine(cmd string, args ...string) (string, error) {
if isBlank(cmd) {
return "", util.AssertionErrorf("command cannot be empty")
}
for i, arg := range args {
if strings.ContainsRune(arg, '"') {
return "", util.Errorf(util.ParseError, "arg at index %d contains an invalid double quote: %s", i, arg)
}
if containsWhitespace(arg) {
args[i] = fmt.Sprintf("\"%s\"", arg)
}
}
// Prepend the command to the args array.
if len(args) > 0 {
cmd = fmt.Sprintf("%s %s", cmd, strings.Join(args, " "))
}
return cmd, nil
}
func TestSyncSendOctetStringTooLong(t *testing.T) {
var buf bytes.Buffer
s := NewSyncSender(&buf)
err := s.SendOctetString("hello")
assert.Equal(t, util.AssertionErrorf("octet string must be exactly 4 bytes: 'hello'"), err)
}