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vcs-svn: make test-line-buffer input format more flexible

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Imitate the input format of test-obj-pool to support arbitrary
sequences of commands rather than alternating read/copy.  This should
make it easier to add tests that exercise other line_buffer functions.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
This commit is contained in:
Jonathan Nieder 2011-01-02 18:50:16 -06:00
parent e5e45ca1e3
commit 850c5ea44c
2 changed files with 45 additions and 29 deletions
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18
t/t0080-vcs-svn.sh
View file

@ -85,40 +85,40 @@ test_expect_success 'line buffer' '
printf "%s\n" "" foo >expected6 &&
test-line-buffer <<-\EOF >actual1 &&
5
read 5
HELLO
EOF
test-line-buffer <<-\EOF >actual2 &&
0
read 0
5
copy 5
HELLO
EOF
q_to_nul <<-\EOF |
1
read 1
Q
EOF
test-line-buffer >actual3 &&
q_to_nul <<-\EOF |
0
read 0
1
copy 1
Q
EOF
test-line-buffer >actual4 &&
test-line-buffer <<-\EOF >actual5 &&
5
read 5
foo
EOF
test-line-buffer <<-\EOF >actual6 &&
0
read 0
5
copy 5
foo
EOF

56
test-line-buffer.c
View file

@ -1,11 +1,5 @@
/*
* test-line-buffer.c: code to exercise the svn importer's input helper
*
* Input format:
* number NL
* (number bytes) NL
* number NL
* ...
*/
#include "git-compat-util.h"
@ -20,28 +14,50 @@ static uint32_t strtouint32(const char *s)
return (uint32_t) n;
}
static void handle_command(const char *command, const char *arg, struct line_buffer *buf)
{
switch (*command) {
case 'c':
if (!prefixcmp(command, "copy ")) {
buffer_copy_bytes(buf, strtouint32(arg) + 1);
return;
}
case 'r':
if (!prefixcmp(command, "read ")) {
const char *s = buffer_read_string(buf, strtouint32(arg));
printf("%s\n", s);
buffer_skip_bytes(buf, 1); /* consume newline */
return;
}
default:
die("unrecognized command: %s", command);
}
}
static void handle_line(const char *line, struct line_buffer *stdin_buf)
{
const char *arg = strchr(line, ' ');
if (!arg)
die("no argument in line: %s", line);
handle_command(line, arg + 1, stdin_buf);
}
int main(int argc, char *argv[])
{
struct line_buffer buf = LINE_BUFFER_INIT;
struct line_buffer stdin_buf = LINE_BUFFER_INIT;
char *s;
if (argc != 1)
usage("test-line-buffer < input.txt");
if (buffer_init(&buf, NULL))
usage("test-line-buffer < script");
if (buffer_init(&stdin_buf, NULL))
die_errno("open error");
while ((s = buffer_read_line(&buf))) {
s = buffer_read_string(&buf, strtouint32(s));
fputs(s, stdout);
fputc('\n', stdout);
buffer_skip_bytes(&buf, 1);
if (!(s = buffer_read_line(&buf)))
break;
buffer_copy_bytes(&buf, strtouint32(s) + 1);
}
if (buffer_deinit(&buf))
while ((s = buffer_read_line(&stdin_buf)))
handle_line(s, &stdin_buf);
if (buffer_deinit(&stdin_buf))
die("input error");
if (ferror(stdout))
die("output error");
buffer_reset(&buf);
buffer_reset(&stdin_buf);
return 0;
}