thodg/libgit2/tests/t0020-dirent.c

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• Hash : c8d42b9b
  Author :
  Date : 2009-06-04T17:12:00
  

  t0020-dirent.c: Add explicit returns to the callback functions In particular, the one_entry() and dont_call_me() callback functions require explicit returns, in order to suppress some "control path" compiler warnings (from MS Visual C/C++). Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Andreas Ericsson <ae@op5.se>

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• tests/t0020-dirent.c

• #include <stdarg.h>
  #include "test_lib.h"
  #include "fileops.h"
  
  
  typedef struct name_data {
  	int  count;  /* return count */
  	char *name;  /* filename     */
  } name_data;
  
  typedef struct walk_data {
  	char *sub;        /* sub-directory name */
  	name_data *names; /* name state data    */
  } walk_data;
  
  
  static char path_buffer[GIT_PATH_MAX];
  static char *top_dir = "dir-walk";
  static walk_data *state_loc;
  
  
  static int error(const char *fmt, ...)
  {
  	va_list ap;
  
  	va_start(ap, fmt);
  	vfprintf(stderr, fmt, ap);
  	va_end(ap);
  	fprintf(stderr, "\n");
  	return -1;
  }
  
  static int setup(walk_data *d)
  {
  	name_data *n;
  
  	if (gitfo_mkdir(top_dir, 0755) < 0)
  		return error("can't mkdir(\"%s\")", top_dir);
  
  	if (gitfo_chdir(top_dir) < 0)
  		return error("can't chdir(\"%s\")", top_dir);
  
  	if (strcmp(d->sub, ".") != 0)
  		if (gitfo_mkdir(d->sub, 0755) < 0)
  			return error("can't mkdir(\"%s\")", d->sub);
  
  	strcpy(path_buffer, d->sub);
  	state_loc = d;
  
  	for (n = d->names; n->name; n++) {
  		git_file fd = gitfo_creat(n->name, 0600);
  		must_be_true(fd >= 0);
  		gitfo_close(fd);
  		n->count = 0;
  	}
  
  	return 0;
  }
  
  static int knockdown(walk_data *d)
  {
  	name_data *n;
  
  	for (n = d->names; n->name; n++) {
  		if (gitfo_unlink(n->name) < 0)
  			return error("can't unlink(\"%s\")", n->name);
  	}
  
  	if (strcmp(d->sub, ".") != 0)
  		if (gitfo_rmdir(d->sub) < 0)
  			return error("can't rmdir(\"%s\")", d->sub);
  
  	if (gitfo_chdir("..") < 0)
  		return error("can't chdir(\"..\")");
  
  	if (gitfo_rmdir(top_dir) < 0)
  		return error("can't rmdir(\"%s\")", top_dir);
  
  	return 0;
  }
  
  static int check_counts(walk_data *d)
  {
  	int ret = 0;
  	name_data *n;
  
  	for (n = d->names; n->name; n++) {
  		if (n->count != 1)
  			ret = error("count (%d, %s)", n->count, n->name);
  	}
  	return ret;
  }
  
  static int one_entry(void *state, char *path)
  {
  	walk_data *d = (walk_data *) state;
  	name_data *n;
  
  	must_be_true(state == state_loc);
  	must_be_true(path == path_buffer);
  	for (n = d->names; n->name; n++) {
  		if (!strcmp(n->name, path)) {
  			n->count++;
  			return 0;
  		}
  	}
  	test_die("unexpected path \"%s\"", path);
  	return -1;
  }
  
  
  static name_data dot_names[] = {
  	{ 0, "./a" },
  	{ 0, "./asdf" },
  	{ 0, "./pack-foo.pack" },
  	{ 0, NULL }
  };
  static walk_data dot = {
  	".",
  	dot_names
  };
  
  BEGIN_TEST(dot)
  
  	must_pass(setup(&dot));
  
  	must_pass(gitfo_dirent(path_buffer,
  	                       sizeof(path_buffer),
  	                       one_entry,
  	                       &dot));
  
  	must_pass(check_counts(&dot));
  
  	must_pass(knockdown(&dot));
  END_TEST
  
  static name_data sub_names[] = {
  	{ 0, "sub/a" },
  	{ 0, "sub/asdf" },
  	{ 0, "sub/pack-foo.pack" },
  	{ 0, NULL }
  };
  static walk_data sub = {
  	"sub",
  	sub_names
  };
  
  BEGIN_TEST(sub)
  
  	must_pass(setup(&sub));
  
  	must_pass(gitfo_dirent(path_buffer,
  	                       sizeof(path_buffer),
  	                       one_entry,
  	                       &sub));
  
  	must_pass(check_counts(&sub));
  
  	must_pass(knockdown(&sub));
  END_TEST
  
  static walk_data sub_slash = {
  	"sub/",
  	sub_names
  };
  
  BEGIN_TEST(sub_slash)
  
  	must_pass(setup(&sub_slash));
  
  	must_pass(gitfo_dirent(path_buffer,
  	                       sizeof(path_buffer),
  	                       one_entry,
  	                       &sub_slash));
  
  	must_pass(check_counts(&sub_slash));
  
  	must_pass(knockdown(&sub_slash));
  END_TEST
  
  static name_data empty_names[] = {
  	{ 0, NULL }
  };
  static walk_data empty = {
  	"empty",
  	empty_names
  };
  
  static int dont_call_me(void *state, char *path)
  {
  	test_die("dont_call_me: unexpected callback!");
  	return -1;
  }
  
  BEGIN_TEST(empty)
  
  	must_pass(setup(&empty));
  
  	must_pass(gitfo_dirent(path_buffer,
  	                       sizeof(path_buffer),
  	                       one_entry,
  	                       &empty));
  
  	must_pass(check_counts(&empty));
  
  	/* make sure callback not called */
  	must_pass(gitfo_dirent(path_buffer,
  	                       sizeof(path_buffer),
  	                       dont_call_me,
  	                       &empty));
  
  	must_pass(knockdown(&empty));
  END_TEST
  
  static name_data odd_names[] = {
  	{ 0, "odd/.a" },
  	{ 0, "odd/..c" },
  	/* the following don't work on cygwin/win32 */
  	/* { 0, "odd/.b." }, */
  	/* { 0, "odd/..d.." },  */
  	{ 0, NULL }
  };
  static walk_data odd = {
  	"odd",
  	odd_names
  };
  
  BEGIN_TEST(odd)
  
  	must_pass(setup(&odd));
  
  	must_pass(gitfo_dirent(path_buffer,
  	                       sizeof(path_buffer),
  	                       one_entry,
  	                       &odd));
  
  	must_pass(check_counts(&odd));
  
  	must_pass(knockdown(&odd));
  END_TEST
  
  

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