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/*
* Test program to make sure that dirent compiles cleanly with C++
*
* Copyright (C) 1998-2019 Toni Ronkko
* This file is part of dirent. Dirent may be freely distributed
* under the MIT license. For all details and documentation, see
* https://github.com/tronkko/dirent
*/
#include <iostream>
#include <string.h>
#include <dirent.h>
#include <assert.h>
using namespace std;
/* Filter and sort functions */
static int only_readme(const struct dirent *entry);
static void test_retrieval(void);
static void test_scan(void);
int
main(int argc, char *argv[])
{
(void) argc;
(void) argv;
test_retrieval();
test_scan();
cout << "OK" << endl;
return EXIT_SUCCESS;
}
/* Test basic directory retrieval */
static void
test_retrieval(void)
{
/* Open directory */
DIR *dir = opendir("tests/1");
if (dir == NULL) {
cerr << "Directory tests/1 not found" << endl;
abort();
}
/* Read directory entries */
struct dirent *ent;
int found = 0;
while ((ent = readdir(dir)) != NULL) {
/* Check each file */
if (strcmp(ent->d_name, ".") == 0) {
/* Directory itself */
#ifdef _DIRENT_HAVE_D_TYPE
assert(ent->d_type == DT_DIR);
#endif
#ifdef _DIRENT_HAVE_D_NAMLEN
assert(ent->d_namlen == 1);
#endif
#ifdef _D_EXACT_NAMLEN
assert(_D_EXACT_NAMLEN(ent) == 1);
#endif
#ifdef _D_ALLOC_NAMLEN
assert(_D_ALLOC_NAMLEN(ent) > 1);
#endif
found += 1;
} else if (strcmp(ent->d_name, "..") == 0) {
/* Parent directory */
#ifdef _DIRENT_HAVE_D_TYPE
assert(ent->d_type == DT_DIR);
#endif
#ifdef _DIRENT_HAVE_D_NAMLEN
assert(ent->d_namlen == 2);
#endif
#ifdef _D_EXACT_NAMLEN
assert(_D_EXACT_NAMLEN(ent) == 2);
#endif
#ifdef _D_ALLOC_NAMLEN
assert(_D_ALLOC_NAMLEN(ent) > 2);
#endif
found += 2;
} else if (strcmp(ent->d_name, "file") == 0) {
/* Regular file */
#ifdef _DIRENT_HAVE_D_TYPE
assert(ent->d_type == DT_REG);
#endif
#ifdef _DIRENT_HAVE_D_NAMLEN
assert(ent->d_namlen == 4);
#endif
#ifdef _D_EXACT_NAMLEN
assert(_D_EXACT_NAMLEN(ent) == 4);
#endif
#ifdef _D_ALLOC_NAMLEN
assert(_D_ALLOC_NAMLEN(ent) > 4);
#endif
found += 4;
} else if (strcmp(ent->d_name, "dir") == 0) {
/* Just a directory */
#ifdef _DIRENT_HAVE_D_TYPE
assert(ent->d_type == DT_DIR);
#endif
#ifdef _DIRENT_HAVE_D_NAMLEN
assert(ent->d_namlen == 3);
#endif
#ifdef _D_EXACT_NAMLEN
assert(_D_EXACT_NAMLEN(ent) == 3);
#endif
#ifdef _D_ALLOC_NAMLEN
assert(_D_ALLOC_NAMLEN(ent) > 3);
#endif
found += 8;
} else {
/* Other file */
cerr << "Unexpected file " << ent->d_name << endl;
abort();
}
}
/* Make sure that all files were found */
assert(found == 0xf);
closedir(dir);
}
/* Text basic scan with simple filter function */
static void
test_scan(void)
{
struct dirent **files;
/* Read directory entries */
int n = scandir("tests/3", &files, only_readme, alphasort);
assert(n == 1);
/* Make sure that the filter works */
assert(strcmp(files[0]->d_name, "README.txt") == 0);
/* Release file names */
for (int i = 0; i < n; i++) {
free(files[i]);
}
free(files);
}
/* Only pass README.txt file */
static int
only_readme(const struct dirent *entry)
{
int pass;
if (strcmp (entry->d_name, "README.txt") == 0) {
pass = 1;
} else {
pass = 0;
}
return pass;
}
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