blob: 5067d1e15b566721c1a3ae79052cbcb023a03656 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
#!/bin/sh
test_description="Test the svn importer's input handling routines.
These tests exercise the line_buffer library, but their real purpose
is to check the assumptions that library makes of the platform's input
routines. Processes engaged in bi-directional communication would
hang if fread or fgets is too greedy.
While at it, check that input of newlines and null bytes are handled
correctly.
"
. ./test-lib.sh
test -n "$GIT_REMOTE_SVN_TEST_BIG_FILES" && test_set_prereq EXPENSIVE
generate_tens_of_lines () {
tens=$1 &&
line=$2 &&
i=0 &&
while test $i -lt "$tens"
do
for j in a b c d e f g h i j
do
echo "$line"
done &&
: $((i = $i + 1)) ||
return
done
}
long_read_test () {
: each line is 10 bytes, including newline &&
line=abcdefghi &&
echo "$line" >expect &&
if ! test_declared_prereq PIPE
then
echo >&4 "long_read_test: need to declare PIPE prerequisite"
return 127
fi &&
tens_of_lines=$(($1 / 100 + 1)) &&
lines=$(($tens_of_lines * 10)) &&
readsize=$((($lines - 1) * 10 + 3)) &&
copysize=7 &&
rm -f input &&
mkfifo input &&
{
(
generate_tens_of_lines $tens_of_lines "$line" &&
exec sleep 100
) >input &
} &&
test-line-buffer input <<-EOF >output &&
binary $readsize
copy $copysize
EOF
kill $! &&
test_line_count = $lines output &&
tail -n 1 <output >actual &&
test_cmp expect actual
}
test_expect_success 'setup: have pipes?' '
rm -f frob &&
if mkfifo frob
then
test_set_prereq PIPE
fi
'
test_expect_success 'hello world' '
echo ">HELLO" >expect &&
test-line-buffer <<-\EOF >actual &&
binary 6
HELLO
EOF
test_cmp expect actual
'
test_expect_success PIPE '0-length read, no input available' '
printf ">" >expect &&
rm -f input &&
mkfifo input &&
{
sleep 100 >input &
} &&
test-line-buffer input <<-\EOF >actual &&
binary 0
copy 0
EOF
kill $! &&
test_cmp expect actual
'
test_expect_success '0-length read, send along greeting' '
echo ">HELLO" >expect &&
test-line-buffer <<-\EOF >actual &&
binary 0
copy 6
HELLO
EOF
test_cmp expect actual
'
test_expect_success PIPE '1-byte read, no input available' '
printf ">%s" ab >expect &&
rm -f input &&
mkfifo input &&
{
(
printf "%s" a &&
printf "%s" b &&
exec sleep 100
) >input &
} &&
test-line-buffer input <<-\EOF >actual &&
binary 1
copy 1
EOF
kill $! &&
test_cmp expect actual
'
test_expect_success PIPE 'long read (around 8192 bytes)' '
long_read_test 8192
'
test_expect_success PIPE,EXPENSIVE 'longer read (around 65536 bytes)' '
long_read_test 65536
'
test_expect_success 'read from file descriptor' '
rm -f input &&
echo hello >expect &&
echo hello >input &&
echo copy 6 |
test-line-buffer "&4" 4<input >actual &&
test_cmp expect actual
'
test_expect_success 'skip, copy null byte' '
echo Q | q_to_nul >expect &&
q_to_nul <<-\EOF | test-line-buffer >actual &&
skip 2
Q
copy 2
Q
EOF
test_cmp expect actual
'
test_expect_success 'read null byte' '
echo ">QhelloQ" | q_to_nul >expect &&
q_to_nul <<-\EOF | test-line-buffer >actual &&
binary 8
QhelloQ
EOF
test_cmp expect actual
'
test_expect_success 'long reads are truncated' '
echo ">foo" >expect &&
test-line-buffer <<-\EOF >actual &&
binary 5
foo
EOF
test_cmp expect actual
'
test_expect_success 'long copies are truncated' '
printf "%s\n" ">" foo >expect &&
test-line-buffer <<-\EOF >actual &&
binary 1
copy 5
foo
EOF
test_cmp expect actual
'
test_expect_success 'long binary reads are truncated' '
echo ">foo" >expect &&
test-line-buffer <<-\EOF >actual &&
binary 5
foo
EOF
test_cmp expect actual
'
test_done
|
