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[src/trunk]: src/tests/lib/libc/gen/posix_spawn Add a few more posix_spawn te...



details:   https://anonhg.NetBSD.org/src/rev/f1ff7a6b9b3d
branches:  trunk
changeset: 773718:f1ff7a6b9b3d
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Feb 14 00:13:54 2012 +0000

description:
Add a few more posix_spawn testcases, which should detect everything that
was wrong in the initial version, causing the failure reported in
PR kern/45991.

diffstat:

 tests/lib/libc/gen/posix_spawn/Makefile        |    3 +-
 tests/lib/libc/gen/posix_spawn/t_fileactions.c |  206 ++++++++++++++++++++++++-
 2 files changed, 204 insertions(+), 5 deletions(-)

diffs (258 lines):

diff -r 13c04078d67c -r f1ff7a6b9b3d tests/lib/libc/gen/posix_spawn/Makefile
--- a/tests/lib/libc/gen/posix_spawn/Makefile   Mon Feb 13 23:54:58 2012 +0000
+++ b/tests/lib/libc/gen/posix_spawn/Makefile   Tue Feb 14 00:13:54 2012 +0000
@@ -1,6 +1,7 @@
-# $NetBSD: Makefile,v 1.1 2012/02/13 21:03:08 martin Exp $
+# $NetBSD: Makefile,v 1.2 2012/02/14 00:13:54 martin Exp $
 
 NOMAN=         # defined
+WARNS=4
 
 .include <bsd.own.mk>
 
diff -r 13c04078d67c -r f1ff7a6b9b3d tests/lib/libc/gen/posix_spawn/t_fileactions.c
--- a/tests/lib/libc/gen/posix_spawn/t_fileactions.c    Mon Feb 13 23:54:58 2012 +0000
+++ b/tests/lib/libc/gen/posix_spawn/t_fileactions.c    Tue Feb 14 00:13:54 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_fileactions.c,v 1.1 2012/02/13 21:03:08 martin Exp $ */
+/* $NetBSD: t_fileactions.c,v 1.2 2012/02/14 00:13:54 martin Exp $ */
 
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -35,17 +35,212 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <spawn.h>
 #include <unistd.h>
 #include <sys/wait.h>
 
+
+ATF_TC(t_spawn_openmode);
+
+ATF_TC_HEAD(t_spawn_openmode, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "Test the proper handling of 'mode' for 'open' fileactions");
+       atf_tc_set_md_var(tc, "require.progs", "/bin/cat");
+}
+
+static off_t
+filesize(const char * restrict fname)
+{
+       struct stat st;
+       int err;
+
+       err = stat(fname, &st);
+       ATF_REQUIRE(err == 0);
+       return st.st_size;
+}
+
+#define TESTFILE       "./the_input_data"
+#define CHECKFILE      "./the_output_data"
+#define TESTCONTENT    "marry has a little lamb"
+
+static void
+make_testfile(const char *restrict file)
+{
+       FILE *f;
+       size_t written;
+
+       f = fopen(file, "w");
+       ATF_REQUIRE(f != NULL);
+       written = fwrite(TESTCONTENT, 1, strlen(TESTCONTENT), f);
+       fclose(f);
+       ATF_REQUIRE(written == strlen(TESTCONTENT));
+}
+
+static void
+empty_outfile(const char *restrict filename)
+{
+       FILE *f;
+
+       f = fopen(filename, "w");
+       ATF_REQUIRE(f != NULL);
+       fclose(f);
+}
+
+ATF_TC_BODY(t_spawn_openmode, tc)
+{
+       int status, err;
+       pid_t pid;
+       size_t insize, outsize;
+       char * const args[2] = { __UNCONST("cat"), NULL };
+       posix_spawn_file_actions_t fa;
+
+       /*
+        * try a "cat < testfile > checkfile"
+        */
+       make_testfile(TESTFILE);
+       unlink(CHECKFILE);
+
+       posix_spawn_file_actions_init(&fa);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdin),
+           TESTFILE, O_RDONLY, 0);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdout),
+           CHECKFILE, O_WRONLY|O_CREAT, 0600);
+       err = posix_spawn(&pid, "/bin/cat", &fa, NULL, args, NULL);
+       posix_spawn_file_actions_destroy(&fa);
+
+       ATF_REQUIRE(err == 0);
+
+       /* ok, wait for the child to finish */
+       waitpid(pid, &status, 0);
+       ATF_REQUIRE(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS);
+
+       /* now check that input and output have the same size */
+       insize = filesize(TESTFILE);
+       outsize = filesize(CHECKFILE);
+       ATF_REQUIRE(insize == strlen(TESTCONTENT));
+       ATF_REQUIRE(insize == outsize);
+
+       /*
+        * try a "cat < testfile >> checkfile"
+        */
+       make_testfile(TESTFILE);
+       make_testfile(CHECKFILE);
+
+       posix_spawn_file_actions_init(&fa);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdin),
+           TESTFILE, O_RDONLY, 0);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdout),
+           CHECKFILE, O_WRONLY|O_APPEND, 0);
+       err = posix_spawn(&pid, "/bin/cat", &fa, NULL, args, NULL);
+       posix_spawn_file_actions_destroy(&fa);
+
+       ATF_REQUIRE(err == 0);
+
+       /* ok, wait for the child to finish */
+       waitpid(pid, &status, 0);
+       ATF_REQUIRE(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS);
+
+       /* now check that output is twice as long as input */
+       insize = filesize(TESTFILE);
+       outsize = filesize(CHECKFILE);
+       ATF_REQUIRE(insize == strlen(TESTCONTENT));
+       ATF_REQUIRE(insize*2 == outsize);
+
+       /*
+        * try a "cat < testfile  > checkfile" with input and output swapped
+        */
+       make_testfile(TESTFILE);
+       empty_outfile(CHECKFILE);
+
+       posix_spawn_file_actions_init(&fa);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdout),
+           TESTFILE, O_RDONLY, 0);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdin),
+           CHECKFILE, O_WRONLY, 0);
+       err = posix_spawn(&pid, "/bin/cat", &fa, NULL, args, NULL);
+       posix_spawn_file_actions_destroy(&fa);
+
+       ATF_REQUIRE(err == 0);
+
+       /* ok, wait for the child to finish */
+       waitpid(pid, &status, 0);
+       ATF_REQUIRE(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_FAILURE);
+
+       /* now check that input and output are still the same size */
+       insize = filesize(TESTFILE);
+       outsize = filesize(CHECKFILE);
+       ATF_REQUIRE(insize == strlen(TESTCONTENT));
+       ATF_REQUIRE(outsize == 0);
+}
+
+ATF_TC(t_spawn_reopen);
+
+ATF_TC_HEAD(t_spawn_reopen, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "an open filehandle can be replaced by a 'open' fileaction");
+       atf_tc_set_md_var(tc, "require.progs", "/bin/cat");
+}
+
+ATF_TC_BODY(t_spawn_reopen, tc)
+{
+       int status, err;
+       pid_t pid;
+       char * const args[2] = { __UNCONST("cat"), NULL };
+       posix_spawn_file_actions_t fa;
+
+       /*
+        * make sure stdin is open in the parent
+        */
+       freopen("/dev/zero", "r", stdin);
+       /*
+        * now request an open for this fd again in the child
+        */
+       posix_spawn_file_actions_init(&fa);
+       posix_spawn_file_actions_addopen(&fa, fileno(stdin),
+           "/dev/null", O_RDONLY, 0);
+       err = posix_spawn(&pid, "/bin/cat", &fa, NULL, args, NULL);
+       posix_spawn_file_actions_destroy(&fa);
+
+       ATF_REQUIRE(err == 0);
+
+       waitpid(pid, &status, 0);
+       ATF_REQUIRE(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS);
+}
+
+ATF_TC(t_spawn_open_nonexistent);
+
+ATF_TC_HEAD(t_spawn_open_nonexistent, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "posix_spawn fails when a file to open does not exist");
+       atf_tc_set_md_var(tc, "require.progs", "/bin/cat");
+}
+
+ATF_TC_BODY(t_spawn_open_nonexistent, tc)
+{
+       int err;
+       pid_t pid;
+       char * const args[2] = { __UNCONST("cat"), NULL };
+       posix_spawn_file_actions_t fa;
+
+       posix_spawn_file_actions_init(&fa);
+       posix_spawn_file_actions_addopen(&fa, STDIN_FILENO,
+           "./non/ex/ist/ent", O_RDONLY, 0);
+       err = posix_spawn(&pid, "/bin/cat", &fa, NULL, args, NULL);
+       ATF_REQUIRE(err == ENOENT);
+       posix_spawn_file_actions_destroy(&fa);
+}
+
 ATF_TC(t_spawn_fileactions);
 
 ATF_TC_HEAD(t_spawn_fileactions, tc)
 {
        atf_tc_set_md_var(tc, "descr",
-           "Tests posix_spawn with fileactions");
+           "Tests various complex fileactions");
 }
 
 ATF_TC_BODY(t_spawn_fileactions, tc)
@@ -76,17 +271,20 @@
        snprintf(helper, sizeof helper, "%s/h_fileactions",
            atf_tc_get_config_var(tc, "srcdir"));
        err = posix_spawn(&pid, helper, &fa, NULL, args, NULL);
+       posix_spawn_file_actions_destroy(&fa);
+
        ATF_REQUIRE(err == 0);
 
        waitpid(pid, &status, 0);
        ATF_REQUIRE(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS);
-
-       posix_spawn_file_actions_destroy(&fa);
 }
 
 ATF_TP_ADD_TCS(tp)
 {
        ATF_TP_ADD_TC(tp, t_spawn_fileactions);
+       ATF_TP_ADD_TC(tp, t_spawn_open_nonexistent);
+       ATF_TP_ADD_TC(tp, t_spawn_reopen);
+       ATF_TP_ADD_TC(tp, t_spawn_openmode);
 
        return atf_no_error();
 }



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