exp/ssh: patching in the last change lost that a file was deleted.

R=golang-dev
CC=golang-dev
https://golang.org/cl/5541060

src/pkg/exp/ssh/server_shell_test.go

-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"io"
-	"testing"
-)
-
-type MockChannel struct {
-	toSend       []byte
-	bytesPerRead int
-	received     []byte
-}
-
-func (c *MockChannel) Accept() error {
-	return nil
-}
-
-func (c *MockChannel) Reject(RejectionReason, string) error {
-	return nil
-}
-
-func (c *MockChannel) Read(data []byte) (n int, err error) {
-	n = len(data)
-	if n == 0 {
-		return
-	}
-	if n > len(c.toSend) {
-		n = len(c.toSend)
-	}
-	if n == 0 {
-		return 0, io.EOF
-	}
-	if c.bytesPerRead > 0 && n > c.bytesPerRead {
-		n = c.bytesPerRead
-	}
-	copy(data, c.toSend[:n])
-	c.toSend = c.toSend[n:]
-	return
-}
-
-func (c *MockChannel) Write(data []byte) (n int, err error) {
-	c.received = append(c.received, data...)
-	return len(data), nil
-}
-
-func (c *MockChannel) Close() error {
-	return nil
-}
-
-func (c *MockChannel) AckRequest(ok bool) error {
-	return nil
-}
-
-func (c *MockChannel) ChannelType() string {
-	return ""
-}
-
-func (c *MockChannel) ExtraData() []byte {
-	return nil
-}
-
-func TestClose(t *testing.T) {
-	c := &MockChannel{}
-	ss := NewServerShell(c, "> ")
-	line, err := ss.ReadLine()
-	if line != "" {
-		t.Errorf("Expected empty line but got: %s", line)
-	}
-	if err != io.EOF {
-		t.Errorf("Error should have been EOF but got: %s", err)
-	}
-}
-
-var keyPressTests = []struct {
-	in   string
-	line string
-	err  error
-}{
-	{
-		"",
-		"",
-		io.EOF,
-	},
-	{
-		"\r",
-		"",
-		nil,
-	},
-	{
-		"foo\r",
-		"foo",
-		nil,
-	},
-	{
-		"a\x1b[Cb\r", // right
-		"ab",
-		nil,
-	},
-	{
-		"a\x1b[Db\r", // left
-		"ba",
-		nil,
-	},
-	{
-		"a\177b\r", // backspace
-		"b",
-		nil,
-	},
-}
-
-func TestKeyPresses(t *testing.T) {
-	for i, test := range keyPressTests {
-		for j := 0; j < len(test.in); j++ {
-			c := &MockChannel{
-				toSend:       []byte(test.in),
-				bytesPerRead: j,
-			}
-			ss := NewServerShell(c, "> ")
-			line, err := ss.ReadLine()
-			if line != test.line {
-				t.Errorf("Line resulting from test %d (%d bytes per read) was '%s', expected '%s'", i, j, line, test.line)
-				break
-			}
-			if err != test.err {
-				t.Errorf("Error resulting from test %d (%d bytes per read) was '%v', expected '%v'", i, j, err, test.err)
-				break
-			}
-		}
-	}
-}