[thirdparty/git.git] / t / helper / test-run-command.c

/*
 * test-run-command.c: test run command API.
 *
 * (C) 2009 Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
 *
 * This code is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include "test-tool.h"
#include "git-compat-util.h"
#include "cache.h"
#include "run-command.h"
#include "strvec.h"
#include "strbuf.h"
#include "parse-options.h"
#include "string-list.h"
#include "thread-utils.h"
#include "wildmatch.h"
#include "gettext.h"

static int number_callbacks;
static int parallel_next(struct child_process *cp,
			 struct strbuf *err,
			 void *cb,
			 void **task_cb)
{
	struct child_process *d = cb;
	if (number_callbacks >= 4)
		return 0;

	strvec_pushv(&cp->args, d->args.v);
	if (err)
		strbuf_addstr(err, "preloaded output of a child\n");
	else
		fprintf(stderr, "preloaded output of a child\n");

	number_callbacks++;
	return 1;
}

static int no_job(struct child_process *cp,
		  struct strbuf *err,
		  void *cb,
		  void **task_cb)
{
	if (err)
		strbuf_addstr(err, "no further jobs available\n");
	else
		fprintf(stderr, "no further jobs available\n");
	return 0;
}

static int task_finished(int result,
			 struct strbuf *err,
			 void *pp_cb,
			 void *pp_task_cb)
{
	if (err)
		strbuf_addstr(err, "asking for a quick stop\n");
	else
		fprintf(stderr, "asking for a quick stop\n");
	return 1;
}

struct testsuite {
	struct string_list tests, failed;
	int next;
	int quiet, immediate, verbose, verbose_log, trace, write_junit_xml;
};
#define TESTSUITE_INIT { \
	.tests = STRING_LIST_INIT_DUP, \
	.failed = STRING_LIST_INIT_DUP, \
}

static int next_test(struct child_process *cp, struct strbuf *err, void *cb,
		     void **task_cb)
{
	struct testsuite *suite = cb;
	const char *test;
	if (suite->next >= suite->tests.nr)
		return 0;

	test = suite->tests.items[suite->next++].string;
	strvec_pushl(&cp->args, "sh", test, NULL);
	if (suite->quiet)
		strvec_push(&cp->args, "--quiet");
	if (suite->immediate)
		strvec_push(&cp->args, "-i");
	if (suite->verbose)
		strvec_push(&cp->args, "-v");
	if (suite->verbose_log)
		strvec_push(&cp->args, "-V");
	if (suite->trace)
		strvec_push(&cp->args, "-x");
	if (suite->write_junit_xml)
		strvec_push(&cp->args, "--write-junit-xml");

	strbuf_addf(err, "Output of '%s':\n", test);
	*task_cb = (void *)test;

	return 1;
}

static int test_finished(int result, struct strbuf *err, void *cb,
			 void *task_cb)
{
	struct testsuite *suite = cb;
	const char *name = (const char *)task_cb;

	if (result)
		string_list_append(&suite->failed, name);

	strbuf_addf(err, "%s: '%s'\n", result ? "FAIL" : "SUCCESS", name);

	return 0;
}

static int test_failed(struct strbuf *out, void *cb, void *task_cb)
{
	struct testsuite *suite = cb;
	const char *name = (const char *)task_cb;

	string_list_append(&suite->failed, name);
	strbuf_addf(out, "FAILED TO START: '%s'\n", name);

	return 0;
}

static const char * const testsuite_usage[] = {
	"test-run-command testsuite [<options>] [<pattern>...]",
	NULL
};

static int testsuite(int argc, const char **argv)
{
	struct testsuite suite = TESTSUITE_INIT;
	int max_jobs = 1, i, ret = 0;
	DIR *dir;
	struct dirent *d;
	struct option options[] = {
		OPT_BOOL('i', "immediate", &suite.immediate,
			 "stop at first failed test case(s)"),
		OPT_INTEGER('j', "jobs", &max_jobs, "run <N> jobs in parallel"),
		OPT_BOOL('q', "quiet", &suite.quiet, "be terse"),
		OPT_BOOL('v', "verbose", &suite.verbose, "be verbose"),
		OPT_BOOL('V', "verbose-log", &suite.verbose_log,
			 "be verbose, redirected to a file"),
		OPT_BOOL('x', "trace", &suite.trace, "trace shell commands"),
		OPT_BOOL(0, "write-junit-xml", &suite.write_junit_xml,
			 "write JUnit-style XML files"),
		OPT_END()
	};
	struct run_process_parallel_opts opts = {
		.get_next_task = next_test,
		.start_failure = test_failed,
		.task_finished = test_finished,
		.data = &suite,
	};

	argc = parse_options(argc, argv, NULL, options,
			testsuite_usage, PARSE_OPT_STOP_AT_NON_OPTION);

	if (max_jobs <= 0)
		max_jobs = online_cpus();

	dir = opendir(".");
	if (!dir)
		die("Could not open the current directory");
	while ((d = readdir(dir))) {
		const char *p = d->d_name;

		if (*p != 't' || !isdigit(p[1]) || !isdigit(p[2]) ||
		    !isdigit(p[3]) || !isdigit(p[4]) || p[5] != '-' ||
		    !ends_with(p, ".sh"))
			continue;

		/* No pattern: match all */
		if (!argc) {
			string_list_append(&suite.tests, p);
			continue;
		}

		for (i = 0; i < argc; i++)
			if (!wildmatch(argv[i], p, 0)) {
				string_list_append(&suite.tests, p);
				break;
			}
	}
	closedir(dir);

	if (!suite.tests.nr)
		die("No tests match!");
	if (max_jobs > suite.tests.nr)
		max_jobs = suite.tests.nr;

	fprintf(stderr, "Running %"PRIuMAX" tests (%d at a time)\n",
		(uintmax_t)suite.tests.nr, max_jobs);

	opts.processes = max_jobs;
	run_processes_parallel(&opts);

	if (suite.failed.nr > 0) {
		ret = 1;
		fprintf(stderr, "%"PRIuMAX" tests failed:\n\n",
			(uintmax_t)suite.failed.nr);
		for (i = 0; i < suite.failed.nr; i++)
			fprintf(stderr, "\t%s\n", suite.failed.items[i].string);
	}

	string_list_clear(&suite.tests, 0);
	string_list_clear(&suite.failed, 0);

	return ret;
}

static uint64_t my_random_next = 1234;

static uint64_t my_random(void)
{
	uint64_t res = my_random_next;
	my_random_next = my_random_next * 1103515245 + 12345;
	return res;
}

static int quote_stress_test(int argc, const char **argv)
{
	/*
	 * We are running a quote-stress test.
	 * spawn a subprocess that runs quote-stress with a
	 * special option that echoes back the arguments that
	 * were passed in.
	 */
	char special[] = ".?*\\^_\"'`{}()[]<>@~&+:;$%"; // \t\r\n\a";
	int i, j, k, trials = 100, skip = 0, msys2 = 0;
	struct strbuf out = STRBUF_INIT;
	struct strvec args = STRVEC_INIT;
	struct option options[] = {
		OPT_INTEGER('n', "trials", &trials, "number of trials"),
		OPT_INTEGER('s', "skip", &skip, "skip <n> trials"),
		OPT_BOOL('m', "msys2", &msys2, "test quoting for MSYS2's sh"),
		OPT_END()
	};
	const char * const usage[] = {
		"test-tool run-command quote-stress-test <options>",
		NULL
	};

	argc = parse_options(argc, argv, NULL, options, usage, 0);

	setenv("MSYS_NO_PATHCONV", "1", 0);

	for (i = 0; i < trials; i++) {
		struct child_process cp = CHILD_PROCESS_INIT;
		size_t arg_count, arg_offset;
		int ret = 0;

		strvec_clear(&args);
		if (msys2)
			strvec_pushl(&args, "sh", "-c",
				     "printf %s\\\\0 \"$@\"", "skip", NULL);
		else
			strvec_pushl(&args, "test-tool", "run-command",
				     "quote-echo", NULL);
		arg_offset = args.nr;

		if (argc > 0) {
			trials = 1;
			arg_count = argc;
			for (j = 0; j < arg_count; j++)
				strvec_push(&args, argv[j]);
		} else {
			arg_count = 1 + (my_random() % 5);
			for (j = 0; j < arg_count; j++) {
				char buf[20];
				size_t min_len = 1;
				size_t arg_len = min_len +
					(my_random() % (ARRAY_SIZE(buf) - min_len));

				for (k = 0; k < arg_len; k++)
					buf[k] = special[my_random() %
						ARRAY_SIZE(special)];
				buf[arg_len] = '\0';

				strvec_push(&args, buf);
			}
		}

		if (i < skip)
			continue;

		strvec_pushv(&cp.args, args.v);
		strbuf_reset(&out);
		if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0) < 0)
			return error("Failed to spawn child process");

		for (j = 0, k = 0; j < arg_count; j++) {
			const char *arg = args.v[j + arg_offset];

			if (strcmp(arg, out.buf + k))
				ret = error("incorrectly quoted arg: '%s', "
					    "echoed back as '%s'",
					     arg, out.buf + k);
			k += strlen(out.buf + k) + 1;
		}

		if (k != out.len)
			ret = error("got %d bytes, but consumed only %d",
				     (int)out.len, (int)k);

		if (ret) {
			fprintf(stderr, "Trial #%d failed. Arguments:\n", i);
			for (j = 0; j < arg_count; j++)
				fprintf(stderr, "arg #%d: '%s'\n",
					(int)j, args.v[j + arg_offset]);

			strbuf_release(&out);
			strvec_clear(&args);

			return ret;
		}

		if (i && (i % 100) == 0)
			fprintf(stderr, "Trials completed: %d\n", (int)i);
	}

	strbuf_release(&out);
	strvec_clear(&args);

	return 0;
}

static int quote_echo(int argc, const char **argv)
{
	while (argc > 1) {
		fwrite(argv[1], strlen(argv[1]), 1, stdout);
		fputc('\0', stdout);
		argv++;
		argc--;
	}

	return 0;
}

static int inherit_handle(const char *argv0)
{
	struct child_process cp = CHILD_PROCESS_INIT;
	char path[PATH_MAX];
	int tmp;

	/* First, open an inheritable handle */
	xsnprintf(path, sizeof(path), "out-XXXXXX");
	tmp = xmkstemp(path);

	strvec_pushl(&cp.args,
		     "test-tool", argv0, "inherited-handle-child", NULL);
	cp.in = -1;
	cp.no_stdout = cp.no_stderr = 1;
	if (start_command(&cp) < 0)
		die("Could not start child process");

	/* Then close it, and try to delete it. */
	close(tmp);
	if (unlink(path))
		die("Could not delete '%s'", path);

	if (close(cp.in) < 0 || finish_command(&cp) < 0)
		die("Child did not finish");

	return 0;
}

static int inherit_handle_child(void)
{
	struct strbuf buf = STRBUF_INIT;

	if (strbuf_read(&buf, 0, 0) < 0)
		die("Could not read stdin");
	printf("Received %s\n", buf.buf);
	strbuf_release(&buf);

	return 0;
}

int cmd__run_command(int argc, const char **argv)
{
	struct child_process proc = CHILD_PROCESS_INIT;
	int jobs;
	int ret;
	struct run_process_parallel_opts opts = {
		.data = &proc,
	};

	if (argc > 1 && !strcmp(argv[1], "testsuite"))
		return testsuite(argc - 1, argv + 1);
	if (!strcmp(argv[1], "inherited-handle"))
		return inherit_handle(argv[0]);
	if (!strcmp(argv[1], "inherited-handle-child"))
		return inherit_handle_child();

	if (argc >= 2 && !strcmp(argv[1], "quote-stress-test"))
		return !!quote_stress_test(argc - 1, argv + 1);

	if (argc >= 2 && !strcmp(argv[1], "quote-echo"))
		return !!quote_echo(argc - 1, argv + 1);

	if (argc < 3)
		return 1;
	while (!strcmp(argv[1], "env")) {
		if (!argv[2])
			die("env specifier without a value");
		strvec_push(&proc.env, argv[2]);
		argv += 2;
		argc -= 2;
	}
	if (argc < 3) {
		ret = 1;
		goto cleanup;
	}
	strvec_pushv(&proc.args, (const char **)argv + 2);

	if (!strcmp(argv[1], "start-command-ENOENT")) {
		if (start_command(&proc) < 0 && errno == ENOENT) {
			ret = 0;
			goto cleanup;
		}
		fprintf(stderr, "FAIL %s\n", argv[1]);
		return 1;
	}
	if (!strcmp(argv[1], "run-command")) {
		ret = run_command(&proc);
		goto cleanup;
	}

	if (!strcmp(argv[1], "--ungroup")) {
		argv += 1;
		argc -= 1;
		opts.ungroup = 1;
	}

	jobs = atoi(argv[2]);
	strvec_clear(&proc.args);
	strvec_pushv(&proc.args, (const char **)argv + 3);

	if (!strcmp(argv[1], "run-command-parallel")) {
		opts.get_next_task = parallel_next;
	} else if (!strcmp(argv[1], "run-command-abort")) {
		opts.get_next_task = parallel_next;
		opts.task_finished = task_finished;
	} else if (!strcmp(argv[1], "run-command-no-jobs")) {
		opts.get_next_task = no_job;
		opts.task_finished = task_finished;
	} else {
		ret = 1;
		fprintf(stderr, "check usage\n");
		goto cleanup;
	}
	opts.processes = jobs;
	run_processes_parallel(&opts);
	ret = 0;
cleanup:
	child_process_clear(&proc);
	return ret;
}
Commit	Line	Data
2b541bf8 JS	1	/*
	2	* test-run-command.c: test run command API.
	3	*
	4	* (C) 2009 Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
	5	*
	6	* This code is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
ae6a51f5	11	#include "test-tool.h"
2b541bf8	12	#include "git-compat-util.h"
be5d88e1	13	#include "cache.h"
2b541bf8	14	#include "run-command.h"
dbbcd44f	15	#include "strvec.h"
c553c72e	16	#include "strbuf.h"
be5d88e1 JS	17	#include "parse-options.h"
	18	#include "string-list.h"
	19	#include "thread-utils.h"
	20	#include "wildmatch.h"
ad155925	21	#include "gettext.h"
2b541bf8	22
c553c72e SB	23	static int number_callbacks;
	24	static int parallel_next(struct child_process *cp,
	25	struct strbuf *err,
	26	void *cb,
	27	void **task_cb)
	28	{
	29	struct child_process *d = cb;
	30	if (number_callbacks >= 4)
	31	return 0;
	32
87ee87dd	33	strvec_pushv(&cp->args, d->args.v);
fd3aaf53 ÆAB	34	if (err)
	35	strbuf_addstr(err, "preloaded output of a child\n");
	36	else
	37	fprintf(stderr, "preloaded output of a child\n");
	38
c553c72e SB	39	number_callbacks++;
	40	return 1;
	41	}
	42
	43	static int no_job(struct child_process *cp,
	44	struct strbuf *err,
	45	void *cb,
	46	void **task_cb)
	47	{
fd3aaf53 ÆAB	48	if (err)
	49	strbuf_addstr(err, "no further jobs available\n");
	50	else
	51	fprintf(stderr, "no further jobs available\n");
c553c72e SB	52	return 0;
	53	}
	54
	55	static int task_finished(int result,
c553c72e SB	56	struct strbuf *err,
	57	void *pp_cb,
	58	void *pp_task_cb)
	59	{
fd3aaf53 ÆAB	60	if (err)
	61	strbuf_addstr(err, "asking for a quick stop\n");
	62	else
	63	fprintf(stderr, "asking for a quick stop\n");
c553c72e SB	64	return 1;
	65	}
	66
be5d88e1 JS	67	struct testsuite {
	68	struct string_list tests, failed;
	69	int next;
	70	int quiet, immediate, verbose, verbose_log, trace, write_junit_xml;
	71	};
f69a6e4f ÆAB	72	#define TESTSUITE_INIT { \
	73	.tests = STRING_LIST_INIT_DUP, \
	74	.failed = STRING_LIST_INIT_DUP, \
	75	}
be5d88e1 JS	76
	77	static int next_test(struct child_process cp, struct strbuf err, void *cb,
	78	void **task_cb)
	79	{
	80	struct testsuite *suite = cb;
	81	const char *test;
	82	if (suite->next >= suite->tests.nr)
	83	return 0;
	84
	85	test = suite->tests.items[suite->next++].string;
c972bf4c	86	strvec_pushl(&cp->args, "sh", test, NULL);
be5d88e1	87	if (suite->quiet)
c972bf4c	88	strvec_push(&cp->args, "--quiet");
be5d88e1	89	if (suite->immediate)
c972bf4c	90	strvec_push(&cp->args, "-i");
be5d88e1	91	if (suite->verbose)
c972bf4c	92	strvec_push(&cp->args, "-v");
be5d88e1	93	if (suite->verbose_log)
c972bf4c	94	strvec_push(&cp->args, "-V");
be5d88e1	95	if (suite->trace)
c972bf4c	96	strvec_push(&cp->args, "-x");
be5d88e1	97	if (suite->write_junit_xml)
c972bf4c	98	strvec_push(&cp->args, "--write-junit-xml");
be5d88e1 JS	99
	100	strbuf_addf(err, "Output of '%s':\n", test);
	101	task_cb = (void )test;
	102
	103	return 1;
	104	}
	105
	106	static int test_finished(int result, struct strbuf err, void cb,
	107	void *task_cb)
	108	{
	109	struct testsuite *suite = cb;
	110	const char name = (const char )task_cb;
	111
	112	if (result)
	113	string_list_append(&suite->failed, name);
	114
	115	strbuf_addf(err, "%s: '%s'\n", result ? "FAIL" : "SUCCESS", name);
	116
	117	return 0;
	118	}
	119
	120	static int test_failed(struct strbuf out, void cb, void *task_cb)
	121	{
	122	struct testsuite *suite = cb;
	123	const char name = (const char )task_cb;
	124
	125	string_list_append(&suite->failed, name);
	126	strbuf_addf(out, "FAILED TO START: '%s'\n", name);
	127
	128	return 0;
	129	}
	130
	131	static const char * const testsuite_usage[] = {
	132	"test-run-command testsuite [<options>] [<pattern>...]",
	133	NULL
	134	};
	135
	136	static int testsuite(int argc, const char **argv)
	137	{
	138	struct testsuite suite = TESTSUITE_INIT;
6e5ba0ba	139	int max_jobs = 1, i, ret = 0;
be5d88e1 JS	140	DIR *dir;
	141	struct dirent *d;
	142	struct option options[] = {
	143	OPT_BOOL('i', "immediate", &suite.immediate,
	144	"stop at first failed test case(s)"),
	145	OPT_INTEGER('j', "jobs", &max_jobs, "run <N> jobs in parallel"),
	146	OPT_BOOL('q', "quiet", &suite.quiet, "be terse"),
	147	OPT_BOOL('v', "verbose", &suite.verbose, "be verbose"),
	148	OPT_BOOL('V', "verbose-log", &suite.verbose_log,
	149	"be verbose, redirected to a file"),
	150	OPT_BOOL('x', "trace", &suite.trace, "trace shell commands"),
	151	OPT_BOOL(0, "write-junit-xml", &suite.write_junit_xml,
	152	"write JUnit-style XML files"),
	153	OPT_END()
	154	};
6e5ba0ba ÆAB	155	struct run_process_parallel_opts opts = {
	156	.get_next_task = next_test,
	157	.start_failure = test_failed,
	158	.task_finished = test_finished,
	159	.data = &suite,
	160	};
be5d88e1	161
be5d88e1 JS	162	argc = parse_options(argc, argv, NULL, options,
	163	testsuite_usage, PARSE_OPT_STOP_AT_NON_OPTION);
	164
	165	if (max_jobs <= 0)
	166	max_jobs = online_cpus();
	167
	168	dir = opendir(".");
	169	if (!dir)
	170	die("Could not open the current directory");
	171	while ((d = readdir(dir))) {
	172	const char *p = d->d_name;
	173
	174	if (*p != 't' \|\| !isdigit(p[1]) \|\| !isdigit(p[2]) \|\|
	175	!isdigit(p[3]) \|\| !isdigit(p[4]) \|\| p[5] != '-' \|\|
	176	!ends_with(p, ".sh"))
	177	continue;
	178
	179	/* No pattern: match all */
	180	if (!argc) {
	181	string_list_append(&suite.tests, p);
	182	continue;
	183	}
	184
	185	for (i = 0; i < argc; i++)
	186	if (!wildmatch(argv[i], p, 0)) {
	187	string_list_append(&suite.tests, p);
	188	break;
	189	}
	190	}
	191	closedir(dir);
	192
	193	if (!suite.tests.nr)
	194	die("No tests match!");
	195	if (max_jobs > suite.tests.nr)
	196	max_jobs = suite.tests.nr;
	197
99d60545 ÆAB	198	fprintf(stderr, "Running %"PRIuMAX" tests (%d at a time)\n",
99d60545 ÆAB	199	(uintmax_t)suite.tests.nr, max_jobs);
be5d88e1	200
6e5ba0ba ÆAB	201	opts.processes = max_jobs;
6e5ba0ba ÆAB	202	run_processes_parallel(&opts);
be5d88e1 JS	203
	204	if (suite.failed.nr > 0) {
	205	ret = 1;
99d60545 ÆAB	206	fprintf(stderr, "%"PRIuMAX" tests failed:\n\n",
99d60545 ÆAB	207	(uintmax_t)suite.failed.nr);
be5d88e1 JS	208	for (i = 0; i < suite.failed.nr; i++)
	209	fprintf(stderr, "\t%s\n", suite.failed.items[i].string);
	210	}
	211
	212	string_list_clear(&suite.tests, 0);
	213	string_list_clear(&suite.failed, 0);
	214
6e5ba0ba	215	return ret;
be5d88e1 JS	216	}
be5d88e1 JS	217
ad155925 GS	218	static uint64_t my_random_next = 1234;
	219
	220	static uint64_t my_random(void)
	221	{
	222	uint64_t res = my_random_next;
	223	my_random_next = my_random_next * 1103515245 + 12345;
	224	return res;
	225	}
	226
	227	static int quote_stress_test(int argc, const char **argv)
	228	{
	229	/*
	230	* We are running a quote-stress test.
	231	* spawn a subprocess that runs quote-stress with a
	232	* special option that echoes back the arguments that
	233	* were passed in.
	234	*/
	235	char special[] = ".?*\\^_\"'`{}()[]<>@~&+:;$%"; // \t\r\n\a";
379e51d1	236	int i, j, k, trials = 100, skip = 0, msys2 = 0;
ad155925	237	struct strbuf out = STRBUF_INIT;
c972bf4c	238	struct strvec args = STRVEC_INIT;
ad155925	239	struct option options[] = {
9e1f22c8 AC	240	OPT_INTEGER('n', "trials", &trials, "number of trials"),
	241	OPT_INTEGER('s', "skip", &skip, "skip <n> trials"),
	242	OPT_BOOL('m', "msys2", &msys2, "test quoting for MSYS2's sh"),
ad155925 GS	243	OPT_END()
	244	};
	245	const char * const usage[] = {
14af7ed5	246	"test-tool run-command quote-stress-test <options>",
ad155925 GS	247	NULL
	248	};
	249
	250	argc = parse_options(argc, argv, NULL, options, usage, 0);
	251
379e51d1 JS	252	setenv("MSYS_NO_PATHCONV", "1", 0);
379e51d1 JS	253
ad155925 GS	254	for (i = 0; i < trials; i++) {
ad155925 GS	255	struct child_process cp = CHILD_PROCESS_INIT;
55953c77	256	size_t arg_count, arg_offset;
ad155925 GS	257	int ret = 0;
ad155925 GS	258
c972bf4c	259	strvec_clear(&args);
379e51d1	260	if (msys2)
c972bf4c	261	strvec_pushl(&args, "sh", "-c",
f6d8942b	262	"printf %s\\\\0 \"$@\"", "skip", NULL);
379e51d1	263	else
c972bf4c	264	strvec_pushl(&args, "test-tool", "run-command",
f6d8942b	265	"quote-echo", NULL);
d70a9eb6	266	arg_offset = args.nr;
55953c77 JS	267
	268	if (argc > 0) {
	269	trials = 1;
	270	arg_count = argc;
	271	for (j = 0; j < arg_count; j++)
c972bf4c	272	strvec_push(&args, argv[j]);
55953c77 JS	273	} else {
	274	arg_count = 1 + (my_random() % 5);
	275	for (j = 0; j < arg_count; j++) {
	276	char buf[20];
	277	size_t min_len = 1;
	278	size_t arg_len = min_len +
	279	(my_random() % (ARRAY_SIZE(buf) - min_len));
	280
	281	for (k = 0; k < arg_len; k++)
	282	buf[k] = special[my_random() %
	283	ARRAY_SIZE(special)];
	284	buf[arg_len] = '\0';
	285
c972bf4c	286	strvec_push(&args, buf);
55953c77	287	}
ad155925 GS	288	}
ad155925 GS	289
7530a628 JS	290	if (i < skip)
	291	continue;
	292
87ee87dd	293	strvec_pushv(&cp.args, args.v);
ad155925 GS	294	strbuf_reset(&out);
	295	if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0) < 0)
	296	return error("Failed to spawn child process");
	297
	298	for (j = 0, k = 0; j < arg_count; j++) {
d70a9eb6	299	const char *arg = args.v[j + arg_offset];
ad155925 GS	300
	301	if (strcmp(arg, out.buf + k))
	302	ret = error("incorrectly quoted arg: '%s', "
	303	"echoed back as '%s'",
	304	arg, out.buf + k);
	305	k += strlen(out.buf + k) + 1;
	306	}
	307
	308	if (k != out.len)
	309	ret = error("got %d bytes, but consumed only %d",
	310	(int)out.len, (int)k);
	311
	312	if (ret) {
	313	fprintf(stderr, "Trial #%d failed. Arguments:\n", i);
	314	for (j = 0; j < arg_count; j++)
	315	fprintf(stderr, "arg #%d: '%s'\n",
d70a9eb6	316	(int)j, args.v[j + arg_offset]);
ad155925 GS	317
ad155925 GS	318	strbuf_release(&out);
c972bf4c	319	strvec_clear(&args);
ad155925 GS	320
	321	return ret;
	322	}
	323
	324	if (i && (i % 100) == 0)
	325	fprintf(stderr, "Trials completed: %d\n", (int)i);
	326	}
	327
	328	strbuf_release(&out);
c972bf4c	329	strvec_clear(&args);
ad155925 GS	330
	331	return 0;
	332	}
	333
	334	static int quote_echo(int argc, const char **argv)
	335	{
	336	while (argc > 1) {
	337	fwrite(argv[1], strlen(argv[1]), 1, stdout);
	338	fputc('\0', stdout);
	339	argv++;
	340	argc--;
	341	}
	342
	343	return 0;
	344	}
	345
eea4a7f4 JS	346	static int inherit_handle(const char *argv0)
	347	{
	348	struct child_process cp = CHILD_PROCESS_INIT;
	349	char path[PATH_MAX];
	350	int tmp;
	351
	352	/* First, open an inheritable handle */
	353	xsnprintf(path, sizeof(path), "out-XXXXXX");
	354	tmp = xmkstemp(path);
	355
c972bf4c	356	strvec_pushl(&cp.args,
f6d8942b	357	"test-tool", argv0, "inherited-handle-child", NULL);
eea4a7f4 JS	358	cp.in = -1;
	359	cp.no_stdout = cp.no_stderr = 1;
	360	if (start_command(&cp) < 0)
	361	die("Could not start child process");
	362
	363	/* Then close it, and try to delete it. */
	364	close(tmp);
	365	if (unlink(path))
	366	die("Could not delete '%s'", path);
	367
	368	if (close(cp.in) < 0 \|\| finish_command(&cp) < 0)
	369	die("Child did not finish");
	370
	371	return 0;
	372	}
	373
	374	static int inherit_handle_child(void)
	375	{
	376	struct strbuf buf = STRBUF_INIT;
	377
	378	if (strbuf_read(&buf, 0, 0) < 0)
	379	die("Could not read stdin");
	380	printf("Received %s\n", buf.buf);
	381	strbuf_release(&buf);
	382
	383	return 0;
	384	}
	385
ae6a51f5	386	int cmd__run_command(int argc, const char **argv)
2b541bf8	387	{
d3180279	388	struct child_process proc = CHILD_PROCESS_INIT;
c553c72e	389	int jobs;
910e2b37	390	int ret;
6e5ba0ba ÆAB	391	struct run_process_parallel_opts opts = {
	392	.data = &proc,
	393	};
2b541bf8	394
be5d88e1	395	if (argc > 1 && !strcmp(argv[1], "testsuite"))
910e2b37	396	return testsuite(argc - 1, argv + 1);
eea4a7f4	397	if (!strcmp(argv[1], "inherited-handle"))
910e2b37	398	return inherit_handle(argv[0]);
eea4a7f4	399	if (!strcmp(argv[1], "inherited-handle-child"))
910e2b37	400	return inherit_handle_child();
be5d88e1	401
ad155925 GS	402	if (argc >= 2 && !strcmp(argv[1], "quote-stress-test"))
	403	return !!quote_stress_test(argc - 1, argv + 1);
	404
	405	if (argc >= 2 && !strcmp(argv[1], "quote-echo"))
	406	return !!quote_echo(argc - 1, argv + 1);
	407
c61a975d NTND	408	if (argc < 3)
	409	return 1;
	410	while (!strcmp(argv[1], "env")) {
	411	if (!argv[2])
	412	die("env specifier without a value");
29fda24d	413	strvec_push(&proc.env, argv[2]);
c61a975d NTND	414	argv += 2;
	415	argc -= 2;
	416	}
910e2b37 ÆAB	417	if (argc < 3) {
	418	ret = 1;
	419	goto cleanup;
	420	}
87ee87dd	421	strvec_pushv(&proc.args, (const char **)argv + 2);
2b541bf8 JS	422
2b541bf8 JS	423	if (!strcmp(argv[1], "start-command-ENOENT")) {
910e2b37 ÆAB	424	if (start_command(&proc) < 0 && errno == ENOENT) {
	425	ret = 0;
	426	goto cleanup;
	427	}
2b541bf8 JS	428	fprintf(stderr, "FAIL %s\n", argv[1]);
	429	return 1;
	430	}
910e2b37 ÆAB	431	if (!strcmp(argv[1], "run-command")) {
	432	ret = run_command(&proc);
	433	goto cleanup;
	434	}
2b541bf8	435
fd3aaf53 ÆAB	436	if (!strcmp(argv[1], "--ungroup")) {
	437	argv += 1;
	438	argc -= 1;
6e5ba0ba	439	opts.ungroup = 1;
fd3aaf53 ÆAB	440	}
fd3aaf53 ÆAB	441
c553c72e	442	jobs = atoi(argv[2]);
87ee87dd ÆAB	443	strvec_clear(&proc.args);
87ee87dd ÆAB	444	strvec_pushv(&proc.args, (const char **)argv + 3);
c553c72e	445
a083f94c	446	if (!strcmp(argv[1], "run-command-parallel")) {
6e5ba0ba	447	opts.get_next_task = parallel_next;
a083f94c	448	} else if (!strcmp(argv[1], "run-command-abort")) {
6e5ba0ba ÆAB	449	opts.get_next_task = parallel_next;
6e5ba0ba ÆAB	450	opts.task_finished = task_finished;
a083f94c	451	} else if (!strcmp(argv[1], "run-command-no-jobs")) {
6e5ba0ba ÆAB	452	opts.get_next_task = no_job;
6e5ba0ba ÆAB	453	opts.task_finished = task_finished;
a083f94c	454	} else {
910e2b37	455	ret = 1;
a083f94c	456	fprintf(stderr, "check usage\n");
910e2b37	457	goto cleanup;
a083f94c	458	}
6e5ba0ba ÆAB	459	opts.processes = jobs;
6e5ba0ba ÆAB	460	run_processes_parallel(&opts);
910e2b37 ÆAB	461	ret = 0;
	462	cleanup:
	463	child_process_clear(&proc);
	464	return ret;
2b541bf8	465	}