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Delta Between Two Patch Sets: ssh/buffer_test.go

Issue 6207051: code review 6207051: go.crypto/ssh: introduce a circular buffer for chanReader (Closed)
Left Patch Set: diff -r d59e35c8940f https://code.google.com/p/go.crypto Created 11 years, 10 months ago
Right Patch Set: diff -r d59e35c8940f https://code.google.com/p/go.crypto Created 11 years, 10 months ago
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1 // Copyright 2011 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4
5 package ssh
6
7 import (
8 "io"
9 "testing"
10 )
11
12 var BYTES = []byte("abcdefghijklmnopqrstuvwxyz")
13
14 func TestBufferReadwrite(t *testing.T) {
15 b := newBuffer()
16 b.write(BYTES[:10])
17 r, _ := b.Read(make([]byte, 10))
18 if r != 10 {
19 t.Fatalf("Expected written == read == 10, written: 10, read %d", r)
20 }
21
22 b = newBuffer()
23 b.write(BYTES[:5])
24 r, _ = b.Read(make([]byte, 10))
25 if r != 5 {
26 t.Fatalf("Expected written == read == 5, written: 5, read %d", r )
27 }
28
29 b = newBuffer()
30 b.write(BYTES[:10])
31 r, _ = b.Read(make([]byte, 5))
32 if r != 5 {
33 t.Fatalf("Expected written == 10, read == 5, written: 10, read % d", r)
34 }
35
36 b = newBuffer()
37 b.write(BYTES[:5])
38 b.write(BYTES[5:15])
39 r, _ = b.Read(make([]byte, 10))
40 r2, _ := b.Read(make([]byte, 10))
41 if r != 10 || r2 != 5 || 15 != r+r2 {
42 t.Fatal("Expected written == read == 15")
43 }
44 }
45
46 func TestBufferClose(t *testing.T) {
47 b := newBuffer()
48 b.write(BYTES[:10])
49 b.eof()
50 _, err := b.Read(make([]byte, 5))
51 if err != nil {
52 t.Fatal("expected read of 5 to not return EOF")
53 }
54 b = newBuffer()
55 b.write(BYTES[:10])
56 b.eof()
57 r, err := b.Read(make([]byte, 5))
58 r2, err2 := b.Read(make([]byte, 10))
59 if r != 5 || r2 != 5 || err != nil || err2 != nil {
60 t.Fatal("expected reads of 5 and 5")
61 }
62
63 b = newBuffer()
64 b.write(BYTES[:10])
65 b.eof()
66 r, err = b.Read(make([]byte, 5))
67 r2, err2 = b.Read(make([]byte, 10))
68 r3, err3 := b.Read(make([]byte, 10))
69 if r != 5 || r2 != 5 || r3 != 0 || err != nil || err2 != nil || err3 != io.EOF {
70 t.Fatal("expected reads of 5 and 5 and 0, with EOF")
71 }
72
73 b = newBuffer()
74 b.write(make([]byte, 5))
75 b.write(make([]byte, 10))
76 b.eof()
77 r, err = b.Read(make([]byte, 9))
78 r2, err2 = b.Read(make([]byte, 3))
79 r3, err3 = b.Read(make([]byte, 3))
80 r4, err4 := b.Read(make([]byte, 10))
81 if err != nil || err2 != nil || err3 != nil || err4 != io.EOF {
82 t.Fatalf("Expected EOF on forth read only, err=%v, err2=%v, err3 =%v, err4=%v", err, err2, err3, err4)
83 }
84 if r != 9 || r2 != 3 || r3 != 3 || r4 != 0 {
85 t.Fatal("Expected written == read == 15", r, r2, r3, r4)
86 }
87 }
LEFTRIGHT

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