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test_cmd.c

/******************************************************************************

 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 2 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, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 $Id: test_cmd.c 1732 2007-06-03 15:58:22Z psychotrahe $
 
******************************************************************************/

#include "common.h"
#include "utils_cmd.h"
#include "utils_base.h"
#include "tap.h"

#define COMMAND_LINE 1024
#define UNSET 65530

char *
get_command (char *const *line)
{
      char *cmd;
      int i = 0;

      asprintf (&cmd, " %s", line[i++]);
      while (line[i] != NULL) {
            asprintf (&cmd, "%s %s", cmd, line[i]);
            i++;
      }

      return cmd;
}

int
main (int argc, char **argv)
{
      char **command_line = malloc (sizeof (char *) * COMMAND_LINE);
      char *command = NULL;
      char *perl;
      output chld_out, chld_err;
      int c;
      int result = UNSET;

      plan_tests(50);

      diag ("Running plain echo command, set one");

      /* ensure everything is empty before we begin */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      ok (chld_out.lines == 0, "(initialised) Checking stdout is reset");
      ok (chld_err.lines == 0, "(initialised) Checking stderr is reset");
      ok (result == UNSET, "(initialised) Checking exit code is reset");

      command_line[0] = strdup ("/bin/echo");
      command_line[1] = strdup ("this");
      command_line[2] = strdup ("is");
      command_line[3] = strdup ("test");
      command_line[4] = strdup ("one");

      command = get_command (command_line);

      result = cmd_run_array (command_line, &chld_out, &chld_err, 0);
      ok (chld_out.lines == 1,
                  "(array) Check for expected number of stdout lines");
      ok (chld_err.lines == 0,
                  "(array) Check for expected number of stderr lines");
      ok (strcmp (chld_out.line[0], "this is test one") == 0,
                  "(array) Check for expected stdout output");
      ok (result == 0, "(array) Checking exit code");

      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;
      ok (chld_out.lines == 0, "(initialised) Checking stdout is reset");
      ok (chld_err.lines == 0, "(initialised) Checking stderr is reset");
      ok (result == UNSET, "(initialised) Checking exit code is reset");

      result = cmd_run (command, &chld_out, &chld_err, 0);

      ok (chld_out.lines == 1,
                  "(string) Check for expected number of stdout lines");
      ok (chld_err.lines == 0,
                  "(string) Check for expected number of stderr lines");
      ok (strcmp (chld_out.line[0], "this is test one") == 0,
                  "(string) Check for expected stdout output");
      ok (result == 0, "(string) Checking exit code");

      diag ("Running plain echo command, set two");

      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;
      ok (chld_out.lines == 0, "(initialised) Checking stdout is reset");
      ok (chld_err.lines == 0, "(initialised) Checking stderr is reset");
      ok (result == UNSET, "(initialised) Checking exit code is reset");

      command_line[0] = strdup ("/bin/echo");
      command_line[1] = strdup ("this is test two");
      command_line[2] = NULL;
      command_line[3] = NULL;
      command_line[4] = NULL;

      result = cmd_run_array (command_line, &chld_out, &chld_err, 0);
      ok (chld_out.lines == 1,
                  "(array) Check for expected number of stdout lines");
      ok (chld_err.lines == 0,
                  "(array) Check for expected number of stderr lines");
      ok (strcmp (chld_out.line[0], "this is test two") == 0,
                  "(array) Check for expected stdout output");
      ok (result == 0, "(array) Checking exit code");

      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;
      ok (chld_out.lines == 0, "(initialised) Checking stdout is reset");
      ok (chld_err.lines == 0, "(initialised) Checking stderr is reset");
      ok (result == UNSET, "(initialised) Checking exit code is reset");

      result = cmd_run (command, &chld_out, &chld_err, 0);

      ok (chld_out.lines == 1,
                  "(string) Check for expected number of stdout lines");
      ok (chld_err.lines == 0,
                  "(string) Check for expected number of stderr lines");
      ok (strcmp (chld_out.line[0], "this is test one") == 0,
                  "(string) Check for expected stdout output");
      ok (result == 0, "(string) Checking exit code");


      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;
      ok (chld_out.lines == 0, "(initialised) Checking stdout is reset");
      ok (chld_err.lines == 0, "(initialised) Checking stderr is reset");
      ok (result == UNSET, "(initialised) Checking exit code is reset");

      /* Pass linefeeds via parameters through - those should be evaluated by echo to give multi line output */
      command_line[0] = strdup("/bin/echo");
      command_line[1] = strdup("this is a test via echo\nline two\nit's line 3");
      command_line[2] = strdup("and (note space between '3' and 'and') $$ will not get evaluated");

      result = cmd_run_array (command_line, &chld_out, &chld_err, 0);
      ok (chld_out.lines == 3,
                  "(array) Check for expected number of stdout lines");
      ok (chld_err.lines == 0,
                  "(array) Check for expected number of stderr lines");
      ok (strcmp (chld_out.line[0], "this is a test via echo") == 0,
                  "(array) Check line 1 for expected stdout output");
      ok (strcmp (chld_out.line[1], "line two") == 0,
                  "(array) Check line 2 for expected stdout output");
      ok (strcmp (chld_out.line[2], "it's line 3 and (note space between '3' and 'and') $$ will not get evaluated") == 0,
                  "(array) Check line 3 for expected stdout output");
      ok (result == 0, "(array) Checking exit code");



      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;
      ok (chld_out.lines == 0, "(initialised) Checking stdout is reset");
      ok (chld_err.lines == 0, "(initialised) Checking stderr is reset");
      ok (result == UNSET, "(initialised) Checking exit code is reset");

      command = (char *)malloc(COMMAND_LINE);
      strcpy(command, "/bin/echo3456 non-existant command");
      result = cmd_run (command, &chld_out, &chld_err, 0);

      ok (chld_out.lines == 0,
                  "Non existant command, so no output");
      ok (chld_err.lines == 0,
                  "No stderr either");
      ok (result == 3, "Get return code 3 (?) for non-existant command");


      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;

      command = (char *)malloc(COMMAND_LINE);
      strcpy(command, "/bin/sh non-existant-file");
      result = cmd_run (command, &chld_out, &chld_err, 0);

      ok (chld_out.lines == 0,
                  "/bin/sh returns no stdout when file is missing...");
      ok (chld_err.lines == 1,
                  "...but does give an error line");
      ok (strstr(chld_err.line[0],"non-existant-file") != NULL, "And missing filename is in error message");
      ok (result == 127, "Get return code 127 from /bin/sh");


      /* ensure everything is empty again */
      memset (&chld_out, 0, sizeof (output));
      memset (&chld_err, 0, sizeof (output));
      result = UNSET;

      command = (char *)malloc(COMMAND_LINE);
      strcpy(command, "/bin/non-existant-command");
      result = cmd_run (command, &chld_out, &chld_err, 0);

      ok (chld_out.lines == 0,
                  "/bin/non-existant-command returns no stdout...");
      ok (chld_err.lines == 0,
                  "...and no stderr output either");
      ok (result == 3, "Get return code 3 = UNKNOWN when command does not exist");


      return exit_status ();
}

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