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

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>
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1 parent e5e45ca commit 850c5ea44ce0b4aac3be7c4d14b38ec901e777d1 @jrn jrn committed Jan 3, 2011
Showing with 45 additions and 29 deletions.
  1. +9 −9 t/t0080-vcs-svn.sh
  2. +36 −20 test-line-buffer.c
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@@ -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
View
@@ -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;
}

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