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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-06-20 21:33:26 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-06-20 21:33:26 +0200
commit55bc6a7547f5a0c3668809a4bb5444555100d0f1 (patch)
treeab16644307b798c3b094ee138b8a9d281436ccc5 /tests/gen_inode_table.c
parentd766a9b089aefff63bca3e9914f5332af65efd12 (diff)
Add test case for inode number allocation
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'tests/gen_inode_table.c')
-rw-r--r--tests/gen_inode_table.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/tests/gen_inode_table.c b/tests/gen_inode_table.c
new file mode 100644
index 0000000..12b3bb5
--- /dev/null
+++ b/tests/gen_inode_table.c
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+#include "fstree.h"
+
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+static tree_node_t *gen_node(fstree_t *fs, tree_node_t *parent,
+ const char *name)
+{
+ struct stat sb;
+
+ memset(&sb, 0, sizeof(sb));
+ sb.st_mode = S_IFDIR | 0755;
+
+ return fstree_mknode(fs, parent, name, strlen(name), NULL, &sb);
+}
+
+static void check_children_before_root(tree_node_t *root)
+{
+ tree_node_t *n;
+
+ for (n = root->data.dir->children; n != NULL; n = n->next)
+ assert(n->inode_num < root->inode_num);
+
+ for (n = root->data.dir->children; n != NULL; n = n->next)
+ check_children_before_root(n);
+}
+
+static void check_children_continuous(tree_node_t *root)
+{
+ tree_node_t *n;
+
+ for (n = root->data.dir->children; n != NULL; n = n->next) {
+ if (n->next != NULL) {
+ assert(n->next->inode_num == (n->inode_num + 1));
+ }
+ }
+
+ for (n = root->data.dir->children; n != NULL; n = n->next)
+ check_children_continuous(n);
+}
+
+int main(void)
+{
+ tree_node_t *a, *b, *c;
+ unsigned int i;
+ fstree_t fs;
+
+ // inode table for the empty tree
+ assert(fstree_init(&fs, 0, 0, 0, 0, 0) == 0);
+ assert(fstree_gen_inode_table(&fs) == 0);
+ assert(fs.inode_tbl_size == 3);
+ assert(fs.root->inode_num == 2);
+ assert(fs.inode_table[0] == NULL);
+ assert(fs.inode_table[1] == NULL);
+ assert(fs.inode_table[2] == fs.root);
+ fstree_cleanup(&fs);
+
+ // tree with 2 levels under root, fan out 3
+ assert(fstree_init(&fs, 0, 0, 0, 0, 0) == 0);
+
+ a = gen_node(&fs, fs.root, "a");
+ b = gen_node(&fs, fs.root, "b");
+ c = gen_node(&fs, fs.root, "c");
+ assert(a != NULL);
+ assert(b != NULL);
+ assert(c != NULL);
+
+ assert(gen_node(&fs, a, "a_a") != NULL);
+ assert(gen_node(&fs, a, "a_b") != NULL);
+ assert(gen_node(&fs, a, "a_c") != NULL);
+
+ assert(gen_node(&fs, b, "b_a") != NULL);
+ assert(gen_node(&fs, b, "b_b") != NULL);
+ assert(gen_node(&fs, b, "b_c") != NULL);
+
+ assert(gen_node(&fs, c, "c_a") != NULL);
+ assert(gen_node(&fs, c, "c_b") != NULL);
+ assert(gen_node(&fs, c, "c_c") != NULL);
+
+ assert(fstree_gen_inode_table(&fs) == 0);
+
+ assert(fs.inode_tbl_size == (13 + 2));
+ assert(fs.inode_table[0] == NULL);
+ assert(fs.inode_table[1] == NULL);
+
+ for (i = 2; i < (13 + 2); ++i) {
+ assert(fs.inode_table[i] != NULL);
+ assert(fs.inode_table[i]->inode_num == i);
+ }
+
+ check_children_before_root(fs.root);
+ check_children_continuous(fs.root);
+
+ fstree_cleanup(&fs);
+ return EXIT_SUCCESS;
+}