/*
 * 902_errno_run — execute the lib/errors errno @test fixture under the
 * C-side `ww run` driver and assert exit 0.
 *
 * Sibling to 982_getopt_run / 980_memio_run. errnotest.ww carries its
 * own `export fn main()` that drives the @test fns and signals which
 * case failed via the exit code, so this file is a thin wrapper — no
 * @test scanning, no synthetic main generation.
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>

static int
runwait(const char *cmd)
{
	int rc = system(cmd);
	if (rc == -1) return -1;
	if (WIFEXITED(rc)) return WEXITSTATUS(rc);
	return 1;
}

int
main(void)
{
	const char *bin = getenv("BIN");
	if (!bin) bin = "out/bin";
	char absbin[1024];
	if (bin[0] != '/') {
		char cwd[1024];
		if (getcwd(cwd, sizeof cwd) == NULL) return 1;
		snprintf(absbin, sizeof absbin, "%s/%s", cwd, bin);
		bin = absbin;
	}
	char cwd[1024];
	if (getcwd(cwd, sizeof cwd) == NULL) return 1;

	const char *src = "lib/errors/errnotest.ww";
	char path[1024], cmd[2048];
	snprintf(path, sizeof path, "%s/%s", cwd, src);
	snprintf(cmd, sizeof cmd, "%s/ww test %s", bin, path);
	(void)cwd;
	int rc = runwait(cmd);
	if (rc != 0) {
		fprintf(stderr, "errno_run FAIL: %s exited %d\n", src, rc);
		return 1;
	}
	printf("errno_run: %s ok\n", src);
	return 0;
}