support: Introduce new subdirectory for test infrastructure

The new test driver in <support/test-driver.c> has feature parity with
the old one.  The main difference is that its hooking mechanism is
based on functions and function pointers instead of macros.  This
commit also implements a new environment variable, TEST_COREDUMPS,
which disables the code which disables coredumps (that is, it enables
them if the invocation environment has not disabled them).

<test-skeleton.c> defines wrapper functions so that it is possible to
use existing macros with the new-style hook functionality.

This commit changes only a few test cases to the new test driver, to
make sure that it works as expected.

2 files changed, 16 insertions, 17 deletions

diff --git a/io/tst-open-tmpfile.c b/io/tst-open-tmpfile.c
index 9242d62..23fa819 100644
--- a/io/tst-open-tmpfile.c
+++ b/io/tst-open-tmpfile.c
@@ -28,10 +28,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-static int do_test (void);
-
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"
+#include <support/support.h>
 
 #ifdef O_TMPFILE
 typedef int (*wrapper_func) (const char *, int, mode_t);
@@ -317,3 +314,5 @@ do_test (void)
 }
 
 #endif  /* O_TMPFILE */
+
+#include <support/test-driver.c>
diff --git a/io/tst-posix_fallocate-common.c b/io/tst-posix_fallocate-common.c
index 2f15a5d..3073ffe 100644
--- a/io/tst-posix_fallocate-common.c
+++ b/io/tst-posix_fallocate-common.c
@@ -17,32 +17,27 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <fcntl.h>
-#include <sys/types.h>
+#include <limits.h>
+#include <stdint.h>
 #include <sys/stat.h>
+#include <sys/types.h>
 #include <unistd.h>
 
-static void do_prepare (void);
-#define PREPARE(argc, argv)     do_prepare ()
-static int do_test (void);
-#define TEST_FUNCTION           do_test ()
-
-#define TIMEOUT 20 /* sec.  */
-
-#include <test-skeleton.c>
+#include <support/support.h>
+#include <support/check.h>
+#include <support/temp_file.h>
 
 static char *temp_filename;
 static int temp_fd;
 
 static void
-do_prepare (void)
+do_prepare (int argc, char **argv)
 {
   temp_fd = create_temp_file ("tst-posix_fallocate.", &temp_filename);
   if (temp_fd == -1)
     FAIL_EXIT1 ("cannot create temporary file: %m\n");
 }
-
-#define FAIL(str) \
-  do { printf ("error: %s (line %d)\n", str, __LINE__); return 1; } while (0)
+#define PREPARE do_prepare
 
 static int
 do_test_with_offset (off_t offset)
@@ -83,3 +78,8 @@ do_test_with_offset (off_t offset)
 
   return 0;
 }
+
+/* This function is defined by the individual tests.  */
+static int do_test (void);
+
+#include <support/test-driver.c>