Cleanup: add some structure to the test directory

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 0 insertions, 173 deletions

diff --git a/tests/rbtree.c b/tests/rbtree.c
deleted file mode 100644
index fc607a5..0000000
--- a/tests/rbtree.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * rbtree.c
- *
- * Copyright (C) 2020 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-
-#include "rbtree.h"
-#include "test.h"
-
-static int key_compare(const void *a, const void *b)
-{
-	return *((sqfs_s32 *)a) - *((sqfs_s32 *)b);
-}
-
-static size_t count_nodes_dfs(rbtree_node_t *n)
-{
-	return 1 + (n->left == NULL ? 0 : count_nodes_dfs(n->left))
-		+ (n->right == NULL ? 0 : count_nodes_dfs(n->right));
-}
-
-static size_t min_depth(rbtree_node_t *n)
-{
-	size_t lhs, rhs;
-
-	if (n == NULL)
-		return 0;
-
-	lhs = min_depth(n->left) + 1;
-	rhs = min_depth(n->right) + 1;
-
-	return lhs < rhs ? lhs : rhs;
-}
-
-static size_t max_depth(rbtree_node_t *n)
-{
-	size_t lhs, rhs;
-
-	if (n == NULL)
-		return 0;
-
-	lhs = min_depth(n->left) + 1;
-	rhs = min_depth(n->right) + 1;
-
-	return lhs > rhs ? lhs : rhs;
-}
-
-static size_t get_ref_black_depth(rbtree_t *rb)
-{
-	rbtree_node_t *n;
-	size_t count = 0;
-
-	for (n = rb->root; n != NULL; n = n->left) {
-		if (!n->is_red)
-			count += 1;
-	}
-
-	return count;
-}
-
-static void check_binary_tree_dfs(rbtree_node_t *n)
-{
-	const void *key = rbtree_node_key(n);
-	const void *cmp;
-
-	if (n->left != NULL) {
-		cmp = rbtree_node_key(n->left);
-		TEST_ASSERT(key_compare(cmp, key) < 0);
-
-		check_binary_tree_dfs(n->left);
-	}
-
-	if (n->right != NULL) {
-		cmp = rbtree_node_key(n->right);
-		TEST_ASSERT(key_compare(cmp, key) > 0);
-
-		check_binary_tree_dfs(n->right);
-	}
-}
-
-static void check_colors_dfs(rbtree_node_t *n)
-{
-	if (n->is_red) {
-		TEST_ASSERT(n->left == NULL || !n->left->is_red);
-		TEST_ASSERT(n->right == NULL || !n->right->is_red);
-	}
-
-	if (n->left != NULL)
-		check_colors_dfs(n->left);
-
-	if (n->right != NULL)
-		check_colors_dfs(n->right);
-}
-
-static void check_black_depth_dfs(rbtree_node_t *n, size_t ref,
-				  size_t counter)
-{
-	if (!n->is_red)
-		counter += 1;
-
-	if (n->left == NULL || n->right == NULL)
-		TEST_EQUAL_UI(counter, ref);
-
-	if (n->left != NULL)
-		check_black_depth_dfs(n->left, ref, counter);
-
-	if (n->right != NULL)
-		check_black_depth_dfs(n->right, ref, counter);
-}
-
-int main(void)
-{
-	size_t count, blkdepth, mind, maxd;
-	sqfs_s32 key, key2;
-	rbtree_node_t *n;
-	sqfs_u64 value;
-	rbtree_t rb;
-
-	TEST_ASSERT(rbtree_init(&rb, sizeof(sqfs_s32),
-				sizeof(sqfs_u64), key_compare) == 0);
-
-	count = 0;
-
-	for (key = -1000; key < 1000; ++key) {
-		/* lookup of current key must fail prior to insert */
-		TEST_NULL(rbtree_lookup(&rb, &key));
-
-		/* previous key/value pairs must still be there */
-		for (key2 = -1000; key2 < key; ++key2) {
-			n = rbtree_lookup(&rb, &key2);
-			TEST_NOT_NULL(n);
-			value = *((sqfs_u64 *)rbtree_node_value(n));
-			TEST_EQUAL_UI((sqfs_u64)(key2 + 10000), value);
-		}
-
-		/* insert key value pair */
-		value = key + 10000;
-		TEST_ASSERT(rbtree_insert(&rb, &key, &value) == 0);
-		count += 1;
-
-		/* check if the tree has the right number of nodes */
-		TEST_EQUAL_UI(count_nodes_dfs(rb.root), count);
-
-		/* check if it is still a binary tree */
-		check_binary_tree_dfs(rb.root);
-
-		/* root node must be black. Every red node
-		   must have black children. */
-		TEST_ASSERT(!rb.root->is_red);
-		check_colors_dfs(rb.root);
-
-		/* every path from the root to a leave must have
-		   the same number of black nodes. */
-		blkdepth = get_ref_black_depth(&rb);
-		check_black_depth_dfs(rb.root, blkdepth, 0);
-
-		/* longest root to leaf path must be at most
-		   twice as long as the shortest. */
-		mind = min_depth(rb.root);
-		maxd = max_depth(rb.root);
-		TEST_ASSERT(maxd <= mind * 2);
-
-		/* lookup of current key must work after insert */
-		n = rbtree_lookup(&rb, &key);
-		TEST_NOT_NULL(n);
-		value = *((sqfs_u64 *)rbtree_node_value(n));
-		TEST_EQUAL_UI((sqfs_u64)(key + 10000), value);
-	}
-
-	rbtree_cleanup(&rb);
-	return EXIT_SUCCESS;
-}