385 lines
11 KiB
C
385 lines
11 KiB
C
/*
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* Copyright (c) 2017-2022, Patrick Pelissier
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* + Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* + Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include "m-tree.h"
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#include "test-obj.h"
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#include "m-string.h"
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#include "coverage.h"
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#define M_GET_STRING_INT(str, x, append) \
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(append ? m_string_cat_printf : m_string_printf) (str, "%d", x)
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#define M_OUT_STR_INT(f, x) \
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fprintf (f, "%d", x)
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START_COVERAGE
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TREE_DEF(tree, int, M_OPEXTEND(M_DEFAULT_OPLIST, GET_STR(M_GET_STRING_INT),PARSE_STR(m_core_parse_sint M_IPTR),IN_STR(m_core_fscan_sint M_IPTR), OUT_STR(M_OUT_STR_INT)))
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END_COVERAGE
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TREE_DEF(tree_mpz, testobj_t, TESTOBJ_OPLIST)
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#define numberof(x) (int)(sizeof (x) / sizeof((x)[0]))
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static void test_basic(void)
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{
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tree_t t;
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string_t s;
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tree_init(t);
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string_init(s);
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assert( tree_size(t) == 0);
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assert( tree_empty_p(t) == true);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[]"));
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tree_it_t root = tree_set_root(t, 0);
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assert( tree_size(t) == 1);
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assert( tree_empty_p(t) == false);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{0}]"));
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tree_it_t it = tree_insert_child(root, 2);
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assert( tree_size(t) == 2);
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assert( tree_empty_p(t) == false);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{0,[{2}]}]"));
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tree_it_t it1 = tree_insert_down(root, 1);
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assert( tree_size(t) == 3);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{0,[{1,[{2}]}]}]"));
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tree_it_t it3 = tree_insert_left(it, 3);
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assert( tree_size(t) == 4);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{0,[{1,[{3},{2}]}]}]"));
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tree_it_t it4 = tree_insert_right(it, 4);
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assert( tree_size(t) == 5);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{0,[{1,[{3},{2},{4}]}]}]"));
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root = tree_insert_up(root, -1);
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assert( tree_size(t) == 6);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{2},{4}]}]}]}]"));
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tree_insert_up(it, 5);
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assert( tree_size(t) == 7);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4}]}]}]}]"));
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tree_it_t it6 = tree_insert_child(it4, 6);
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assert( tree_size(t) == 8);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{6}]}]}]}]}]"));
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tree_it_t it7 = tree_insert_child(it4, 7);
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assert( tree_size(t) == 9);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{7},{6}]}]}]}]}]"));
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tree_it_t it8 = tree_insert_child(it7, 8);
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assert( tree_size(t) == 10);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{7,[{8}]},{6}]}]}]}]}]"));
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tree_insert_left(it7, 9);
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assert( tree_size(t) == 11);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{9},{7,[{8}]},{6}]}]}]}]}]"));
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tree_insert_right(it7, 10);
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assert( tree_size(t) == 12);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{9},{7,[{8}]},{10},{6}]}]}]}]}]"));
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assert( *tree_down_ref(it7) == 8);
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assert( *tree_up_ref(it7) == 4);
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assert( *tree_left_ref(it7) == 9);
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assert( *tree_right_ref(it7) == 10);
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assert( *tree_down_ref(root) == 0);
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assert( tree_up_ref(root) == NULL);
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assert( tree_left_ref(root) == NULL);
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assert( tree_right_ref(root) == NULL);
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assert( tree_down_ref(it6) == NULL);
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assert( *tree_ref(root) == -1);
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assert( *tree_ref(it6) == 6);
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assert( *tree_cref(root) == -1);
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assert( *tree_cref(it6) == 6);
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assert( tree_root_p(root) == true);
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assert( tree_root_p(it7) == false);
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assert( tree_root_p(it6) == false);
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assert( tree_node_p(root) == true);
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assert( tree_node_p(it7) == true);
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assert( tree_node_p(it6) == false);
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assert( tree_leaf_p(root) == false);
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assert( tree_leaf_p(it7) == false);
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assert( tree_leaf_p(it6) == true);
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assert(tree_degree(root) == 1);
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assert(tree_degree(it7) == 1);
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assert(tree_degree(it4) == 4);
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assert(tree_degree(it6) == 0);
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assert(tree_depth(root) == 0);
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assert(tree_depth(it7) == 4);
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assert(tree_depth(it6) == 4);
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assert(tree_tree(root) == &t[0]);
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int i = 0;
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for(it = tree_it(t); !tree_end_p(it); tree_next(&it), i++) {
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static const int tab[] = {-1,0,1,3,5,2,4,9,7,8,10,6};
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assert( i < numberof (tab) );
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assert( *tree_ref(it) == tab[i] );
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}
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for(i = 0, it = tree_it_post(t); !tree_end_p(it); tree_next_post(&it), i++) {
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static const int tab[] = {3, 2, 5, 9, 8, 7, 10, 6, 4, 1, 0, -1};
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assert( i < numberof (tab) );
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assert( *tree_cref(it) == tab[i] );
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}
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for(i = 0, it = tree_it_subpre(it4); !tree_end_p(it); tree_next_subpre(&it, it4), i++) {
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static const int tab[] = {4,9,7,8,10,6};
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assert( i < numberof (tab) );
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assert( *tree_ref(it) == tab[i] );
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}
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for(i = 0, it = tree_it_subpre(it7); !tree_end_p(it); tree_next_subpre(&it, it7), i++) {
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static const int tab[] = {7,8};
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assert( i < numberof (tab) );
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assert( *tree_ref(it) == tab[i] );
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}
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for(i = 0, it = tree_it_subpost(it4); !tree_end_p(it); tree_next_subpost(&it, it4), i++) {
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static const int tab[] = {9,8,7,10,6,4};
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assert( i < numberof (tab) );
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assert( *tree_ref(it) == tab[i] );
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}
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for(i = 0, it = tree_it_subpost(it7); !tree_end_p(it); tree_next_subpost(&it, it7), i++) {
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static const int tab[] = {8, 7};
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assert( i < numberof (tab) );
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assert( *tree_ref(it) == tab[i] );
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}
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assert( tree_it_equal_p(root, root) == true);
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assert( tree_it_equal_p(root, it7) == false);
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it = tree_lca(it4, it7);
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assert( tree_it_equal_p(it, it4));
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it = tree_lca(it3, it7);
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assert( tree_it_equal_p(it, it1));
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it = tree_lca(it7, it3);
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assert( tree_it_equal_p(it, it1));
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bool b = tree_remove(it7);
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assert(b);
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assert( tree_size(t) == 11);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{9},{8},{10},{6}]}]}]}]}]"));
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it7 = tree_it_end(t);
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b = tree_remove(it7);
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assert(!b);
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assert( tree_size(t) == 11);
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b = tree_remove(it8);
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assert(b);
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assert( tree_size(t) == 10);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{9},{10},{6}]}]}]}]}]"));
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tree_prune(it4);
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assert( tree_size(t) == 6);
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tree_get_str(s, t, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]}]}]}]}]"));
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string_clear(s);
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tree_clear(t);
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}
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/* Random insertion in a tree.
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We let the normal assertions of the tree checking for violations of the tree properties. */
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#define MAX_NODE_INSERT 5000
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static tree_it_t g_tree[MAX_NODE_INSERT];
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static tree_it_t g_root;
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static unsigned g_num;
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static void insert(unsigned cmd, unsigned ref)
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{
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assert( g_num < MAX_NODE_INSERT);
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assert( cmd < 5);
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assert( ref <= g_num);
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int val = (int) g_num + 1;
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switch (cmd) {
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case 0:
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g_tree[++g_num] = tree_insert_up( g_tree[ref], val);
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if (tree_it_equal_p(g_tree[ref], g_root)) {
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g_root = g_tree[g_num];
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}
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break;
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case 1:
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g_tree[++g_num] = tree_insert_down( g_tree[ref], val);
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break;
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case 2:
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g_tree[++g_num] = tree_insert_child( g_tree[ref], val);
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break;
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case 3:
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if (tree_it_equal_p(g_tree[ref], g_root)) {
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return;
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}
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g_tree[++g_num] = tree_insert_left( g_tree[ref], val);
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break;
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default:
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if (tree_it_equal_p(g_tree[ref], g_root)) {
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return;
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}
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g_tree[++g_num] = tree_insert_right( g_tree[ref], val);
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break;
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}
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}
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static inline unsigned int rand_get(void)
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{
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static unsigned int randValue = 0;
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randValue = randValue * 31421U + 6927U;
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return randValue;
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}
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static void test_gen(void)
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{
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tree_t t;
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string_t s;
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tree_init(t);
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string_init(s);
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g_root = g_tree[++ g_num] = tree_set_root(t, 1);
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tree_get_str(s, t, false);
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for(unsigned i = 0; i < MAX_NODE_INSERT; i++) {
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unsigned cmd = rand_get() % 5;
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unsigned ref = 1 + (rand_get() % g_num);
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insert(cmd, ref);
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tree_get_str(s, t, false);
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}
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string_clear(s);
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tree_clear(t);
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}
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static void test_io(void)
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{
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bool b;
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tree_t t1, t2;
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tree_init(t1);
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tree_init_set(t2, t1);
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assert(tree_empty_p(t2));
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// Test empty
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FILE *f = m_core_fopen ("a-mtree.dat", "wt");
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if (!f) abort();
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tree_out_str(f, t1);
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fclose (f);
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f = m_core_fopen ("a-mtree.dat", "rt");
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if (!f) abort();
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b = tree_in_str (t2, f);
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assert (b == true);
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assert (tree_equal_p (t1, t2));
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assert(tree_empty_p(t2));
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fclose(f);
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M_LET(s, string_t) {
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tree_get_str(s, t1, false);
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assert(string_equal_str_p(s, "[]"));
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const char *sp;
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b = tree_parse_str(t2, string_get_cstr(s), &sp);
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assert(b);
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assert(*sp == 0);
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assert(tree_equal_p(t1, t2));
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assert(tree_empty_p(t2));
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}
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// Not empty
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tree_it_t root = tree_set_root(t1, 0);
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tree_it_t it = tree_insert_child(root, 2);
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tree_insert_down(root, 1);
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tree_insert_left(it, 3);
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tree_it_t it4 = tree_insert_right(it, 4);
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root = tree_insert_up(root, -1);
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tree_insert_up(it, 5);
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tree_insert_child(it4, 6);
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tree_it_t it7 = tree_insert_child(it4, 7);
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tree_insert_child(it7, 8);
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tree_insert_left(it7, 9);
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tree_insert_right(it7, 10);
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tree_set(t2, t1);
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assert (tree_equal_p (t1, t2));
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it = tree_it(t2);
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tree_insert_child(it, 60);
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assert (!tree_equal_p (t1, t2));
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tree_reset(t2);
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M_LET(s, string_t) {
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tree_get_str(s, t1, false);
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assert(string_equal_str_p(s, "[{-1,[{0,[{1,[{3},{5,[{2}]},{4,[{9},{7,[{8}]},{10},{6}]}]}]}]}]"));
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const char *sp;
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b = tree_parse_str(t2, string_get_cstr(s), &sp);
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assert(b);
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assert(*sp == 0);
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assert(tree_equal_p(t1, t2));
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}
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f = m_core_fopen ("a-mtree.dat", "wt");
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if (!f) abort();
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tree_out_str(f, t1);
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fclose (f);
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f = m_core_fopen ("a-mtree.dat", "rt");
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if (!f) abort();
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b = tree_in_str (t2, f);
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assert (b == true);
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assert (tree_equal_p (t1, t2));
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fclose(f);
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tree_clear(t1);
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tree_clear(t2);
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}
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int main(void)
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{
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test_basic();
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test_gen();
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test_io();
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return 0;
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}
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