Update vendor code

vendor/github.com/pin/tftp/netascii/netascii_test.go

@@ -1,89 +0,0 @@
-package netascii
-
-import (
-	"bytes"
-	"io/ioutil"
-	"strings"
-	"testing"
-	"testing/iotest"
-)
-
-var basic = map[string]string{
-	"\r":     "\r\x00",
-	"\n":     "\r\n",
-	"la\nbu": "la\r\nbu",
-	"la\rbu": "la\r\x00bu",
-	"\r\r\r": "\r\x00\r\x00\r\x00",
-	"\n\n\n": "\r\n\r\n\r\n",
-}
-
-func TestTo(t *testing.T) {
-	for text, netascii := range basic {
-		to := ToReader(strings.NewReader(text))
-		n, _ := ioutil.ReadAll(to)
-		if bytes.Compare(n, []byte(netascii)) != 0 {
-			t.Errorf("%q to netascii: %q != %q", text, n, netascii)
-		}
-	}
-}
-
-func TestFrom(t *testing.T) {
-	for text, netascii := range basic {
-		r := bytes.NewReader([]byte(netascii))
-		b := &bytes.Buffer{}
-		from := FromWriter(b)
-		r.WriteTo(from)
-		n, _ := ioutil.ReadAll(b)
-		if string(n) != text {
-			t.Errorf("%q from netascii: %q != %q", netascii, n, text)
-		}
-	}
-}
-
-const text = `
-Therefore, the sequence "CR LF" must be treated as a single "new
-line" character and used whenever their combined action is
-intended; the sequence "CR NUL" must be used where a carriage
-return alone is actually desired; and the CR character must be
-avoided in other contexts.  This rule gives assurance to systems
-which must decide whether to perform a "new line" function or a
-multiple-backspace that the TELNET stream contains a character
-following a CR that will allow a rational decision.
-(in the default ASCII mode), to preserve the symmetry of the
-NVT model.  Even though it may be known in some situations
-(e.g., with remote echo and suppress go ahead options in
-effect) that characters are not being sent to an actual
-printer, nonetheless, for the sake of consistency, the protocol
-requires that a NUL be inserted following a CR not followed by
-a LF in the data stream.  The converse of this is that a NUL
-received in the data stream after a CR (in the absence of
-options negotiations which explicitly specify otherwise) should
-be stripped out prior to applying the NVT to local character
-set mapping.
-`
-
-func TestWriteRead(t *testing.T) {
-	var one bytes.Buffer
-	to := ToReader(strings.NewReader(text))
-	one.ReadFrom(to)
-	two := &bytes.Buffer{}
-	from := FromWriter(two)
-	one.WriteTo(from)
-	text2, _ := ioutil.ReadAll(two)
-	if text != string(text2) {
-		t.Errorf("text mismatch \n%x \n%x", text, text2)
-	}
-}
-
-func TestOneByte(t *testing.T) {
-	var one bytes.Buffer
-	to := iotest.OneByteReader(ToReader(strings.NewReader(text)))
-	one.ReadFrom(to)
-	two := &bytes.Buffer{}
-	from := FromWriter(two)
-	one.WriteTo(from)
-	text2, _ := ioutil.ReadAll(two)
-	if text != string(text2) {
-		t.Errorf("text mismatch \n%x \n%x", text, text2)
-	}
-}