Add tests for recent getopt changes.

1 files changed, 86 insertions, 0 deletions

diff --git a/posix/bug-getopt4.c b/posix/bug-getopt4.c
new file mode 100644
index 0000000000..1daffd1d34
--- /dev/null
+++ b/posix/bug-getopt4.c
@@ -0,0 +1,86 @@
+/* BZ 11041 */
+#include <getopt.h>
+#include <unistd.h>
+#include <stdio.h>
+
+static const struct option opts[] =
+  {
+    { "alpha",    optional_argument, NULL, 'a' },
+    { NULL,       0,                 NULL, 0 }
+  };
+
+static int
+one_test (const char *fmt, int argc, char *argv[], int n, int expected[n])
+{
+  optind = 1;
+
+  int res = 0;
+  for (int i = 0; i < n; ++i)
+    {
+      rewind (stderr);
+      if (ftruncate (fileno (stderr), 0) != 0)
+	{
+	  puts ("cannot truncate file");
+	  return 1;
+	}
+
+      int c = getopt_long (argc, argv, fmt, opts, NULL);
+      if (c != expected[i])
+	{
+	  printf ("format '%s' test %d failed: expected '%c', got '%c'\n",
+		  fmt, i, expected[i], c);
+	  res = 1;
+	}
+      else if (optarg != NULL)
+	{
+	  printf ("format '%s' test %d failed: optarg is \"%s\", not NULL\n",
+		  fmt, i, optarg);
+	  res = 1;
+	}
+      if (ftell (stderr) != 0)
+	{
+	  printf ("format '%s' test %d failed: printed to stderr\n",
+		  fmt, i);
+	  res = 1;
+	}
+    }
+
+  return res;
+}
+
+
+static int
+do_test (void)
+{
+  char *fname = tmpnam (NULL);
+  if (fname == NULL)
+    {
+      puts ("cannot generate name for temporary file");
+      return 1;
+    }
+
+  if (freopen (fname, "w+", stderr) == NULL)
+    {
+      puts ("cannot redirect stderr");
+      return 1;
+    }
+
+  remove (fname);
+
+  int ret = one_test ("W;", 2,
+		      (char *[2]) { (char *) "bug-getopt4", (char *) "--a" },
+		      1, (int [1]) { 'a' });
+
+  ret |= one_test ("W;", 3,
+		   (char *[3]) { (char *) "bug-getopt4", (char *) "-W",
+				 (char *) "a" },
+		   1, (int [1]) { 'a' });
+
+  if (ret == 0)
+    puts ("all OK");
+
+  return ret;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"