Tests for module 'pipe-filter-gi'.

1 files changed, 125 insertions, 0 deletions

diff --git a/tests/test-pipe-filter-gi1.c b/tests/test-pipe-filter-gi1.c
new file mode 100644
index 0000000000..95b9aa0cd9
--- /dev/null
+++ b/tests/test-pipe-filter-gi1.c
@@ -0,0 +1,125 @@
+/* Test of filtering of data through a subprocess.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Written by Bruno Haible <haible@clisp.cons.org>, 2009.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "pipe-filter.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "binary-io.h"
+#include "c-ctype.h"
+#include "read-file.h"
+#include "progname.h"
+
+#define ASSERT(expr) \
+  do									     \
+    {									     \
+      if (!(expr))							     \
+        {								     \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);						     \
+          abort ();							     \
+        }								     \
+    }									     \
+  while (0)
+
+
+/* Pipe a text file through 'tr a-z A-Z', which converts ASCII characters from
+   lower case to upper case.  */
+
+struct locals
+{
+  const char *input;
+  size_t nread;
+  char buf[19];
+};
+
+static void *
+prepare_read (size_t *num_bytes_p, void *private_data)
+{
+  struct locals *l = (struct locals *) private_data;
+  *num_bytes_p = sizeof (l->buf);
+  return l->buf;
+}
+
+static void
+done_read (void *data_read, size_t num_bytes_read, void *private_data)
+{
+  struct locals *l = (struct locals *) private_data;
+  const char *p = l->input + l->nread;
+  const char *q = (const char *) data_read;
+  size_t i;
+
+  for (i = 0; i < num_bytes_read; i++, q++)
+    {
+      /* Handle conversion NL -> CRLF possibly done by the child process.  */
+      if (!(O_BINARY && *q == '\r'))
+	{
+	  char orig = *p;
+	  char expected = c_toupper (orig);
+	  ASSERT (*q == expected);
+	  p++;
+	}
+    }
+  l->nread = p - l->input;
+}
+
+int
+main (int argc, char *argv[])
+{
+  const char *input_filename;
+  size_t input_size;
+  char *input;
+
+  set_program_name (argv[0]);
+
+  ASSERT (argc == 2);
+
+  /* Read some text from a file.  */
+  input_filename = argv[1];
+  input = read_binary_file (input_filename, &input_size);
+  ASSERT (input != NULL);
+
+  /* Convert it to uppercase, line by line.  */
+  {
+    const char *argv[4];
+    struct locals l;
+    struct pipe_filter_gi *f;
+    int result;
+
+    l.input = input;
+    l.nread = 0;
+
+    argv[0] = "tr";
+    argv[1] = "a-z";
+    argv[2] = "A-Z";
+    argv[3] = NULL;
+
+    f = pipe_filter_gi_create ("tr", "tr", argv, false, true,
+			       prepare_read, done_read, &l);
+    ASSERT (f != NULL);
+    result = pipe_filter_gi_write (f, input, input_size);
+    ASSERT (result == 0);
+    result = pipe_filter_gi_close (f);
+    ASSERT (result == 0);
+    ASSERT (l.nread == input_size);
+  }
+
+  return 0;
+}