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/* We use the fact that pipes have a buffer greater than the size of
* any output, and change stdout and stderr to use that.
*
* Since we don't use libtap for output, this looks like one big test. */
#include <ccan/tap/tap.h>
#include <ccan/tap/tap.c>
#include <stdio.h>
#include <limits.h>
#include <err.h>
#include <string.h>
#include <stdbool.h>
#include <fnmatch.h>
/* We dup stderr to here. */
static int stderrfd;
/* write_all inlined here to avoid circular dependency. */
static void write_all(int fd, const void *data, size_t size)
{
while (size) {
ssize_t done;
done = write(fd, data, size);
if (done <= 0)
_exit(1);
data = (const char *)data + done;
size -= done;
}
}
/* Simple replacement for err() */
static void failmsg(const char *fmt, ...)
{
char buf[1024];
va_list ap;
/* Write into buffer. */
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
va_end(ap);
write_all(stderrfd, "# ", 2);
write_all(stderrfd, buf, strlen(buf));
write_all(stderrfd, "\n", 1);
_exit(1);
}
static void expect(int fd, const char *pattern)
{
char buffer[PIPE_BUF+1];
int r;
r = read(fd, buffer, sizeof(buffer)-1);
if (r < 0)
failmsg("reading from pipe");
buffer[r] = '\0';
if (fnmatch(pattern, buffer, 0) != 0)
failmsg("Expected '%s' got '%s'", pattern, buffer);
}
int main(int argc, char *argv[])
{
int p[2];
int stdoutfd;
setbuf(stdout, 0);
printf("1..1\n");
stderrfd = dup(STDERR_FILENO);
if (stderrfd < 0)
err(1, "dup of stderr failed");
stdoutfd = dup(STDOUT_FILENO);
if (stdoutfd < 0)
err(1, "dup of stdout failed");
if (pipe(p) != 0)
failmsg("pipe failed");
if (dup2(p[1], STDERR_FILENO) < 0 || dup2(p[1], STDOUT_FILENO) < 0)
failmsg("Duplicating file descriptor");
plan_tests(10);
expect(p[0], "1..10\n");
ok(1, "msg1");
expect(p[0], "ok 1 - msg1\n");
ok(0, "msg2");
expect(p[0], "not ok 2 - msg2\n"
"# Failed test (*test/run.c:main() at line 91)\n");
ok1(true);
expect(p[0], "ok 3 - true\n");
ok1(false);
expect(p[0], "not ok 4 - false\n"
"# Failed test (*test/run.c:main() at line 98)\n");
pass("passed");
expect(p[0], "ok 5 - passed\n");
fail("failed");
expect(p[0], "not ok 6 - failed\n"
"# Failed test (*test/run.c:main() at line 105)\n");
skip(2, "skipping %s", "test");
expect(p[0], "ok 7 # skip skipping test\n"
"ok 8 # skip skipping test\n");
todo_start("todo");
ok1(false);
expect(p[0], "not ok 9 - false # TODO todo\n"
"# Failed (TODO) test (*test/run.c:main() at line 114)\n");
ok1(true);
expect(p[0], "ok 10 - true # TODO todo\n");
todo_end();
if (exit_status() != 3)
failmsg("Expected exit status 3, not %i", exit_status());
#if 0
/* Manually run the atexit command. */
_cleanup();
expect(p[0], "# Looks like you failed 2 tests of 9.\n");
#endif
write_all(stdoutfd, "ok 1 - All passed\n",
strlen("ok 1 - All passed\n"));
exit(0);
}
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