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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
  Copyright 2013 Daniel Buch
***/

#include "hashmap.h"
#include "util.h"

void test_hashmap_funcs(void);
void test_ordered_hashmap_funcs(void);

static void test_ordered_hashmap_next(void) {
        _cleanup_ordered_hashmap_free_ OrderedHashmap *m = NULL;
        int i;

        assert_se(m = ordered_hashmap_new(NULL));
        for (i = -2; i <= 2; i++)
                assert_se(ordered_hashmap_put(m, INT_TO_PTR(i), INT_TO_PTR(i+10)) == 1);
        for (i = -2; i <= 1; i++)
                assert_se(ordered_hashmap_next(m, INT_TO_PTR(i)) == INT_TO_PTR(i+11));
        assert_se(!ordered_hashmap_next(m, INT_TO_PTR(2)));
        assert_se(!ordered_hashmap_next(NULL, INT_TO_PTR(1)));
        assert_se(!ordered_hashmap_next(m, INT_TO_PTR(3)));
}

typedef struct Item {
        int seen;
} Item;
static void item_seen(Item *item) {
        item->seen++;
}

static void test_hashmap_free_with_destructor(void) {
        Hashmap *m;
        struct Item items[4] = {};
        unsigned i;

        assert_se(m = hashmap_new(NULL));
        for (i = 0; i < ELEMENTSOF(items) - 1; i++)
                assert_se(hashmap_put(m, INT_TO_PTR(i), items + i) == 1);

        m = hashmap_free_with_destructor(m, item_seen);
        assert_se(items[0].seen == 1);
        assert_se(items[1].seen == 1);
        assert_se(items[2].seen == 1);
        assert_se(items[3].seen == 0);
}

static void test_uint64_compare_func(void) {
        const uint64_t a = 0x100, b = 0x101;

        assert_se(uint64_compare_func(&a, &a) == 0);
        assert_se(uint64_compare_func(&a, &b) == -1);
        assert_se(uint64_compare_func(&b, &a) == 1);
}

static void test_trivial_compare_func(void) {
        assert_se(trivial_compare_func(INT_TO_PTR('a'), INT_TO_PTR('a')) == 0);
        assert_se(trivial_compare_func(INT_TO_PTR('a'), INT_TO_PTR('b')) == -1);
        assert_se(trivial_compare_func(INT_TO_PTR('b'), INT_TO_PTR('a')) == 1);
}

static void test_string_compare_func(void) {
        assert_se(string_compare_func("fred", "wilma") != 0);
        assert_se(string_compare_func("fred", "fred") == 0);
}

static void compare_cache(Hashmap *map, IteratedCache *cache) {
        const void **keys = NULL, **values = NULL;
        unsigned num, idx;
        Iterator iter;
        void *k, *v;

        assert_se(iterated_cache_get(cache, &keys, &values, &num) == 0);
        assert_se(num == 0 || keys);
        assert_se(num == 0 || values);

        idx = 0;
        HASHMAP_FOREACH_KEY(v, k, map, iter) {
                assert_se(v == values[idx]);
                assert_se(k == keys[idx]);

                idx++;
        }

        assert_se(idx == num);
}

static void test_iterated_cache(void) {
        Hashmap *m;
        IteratedCache *c;

        assert_se(m = hashmap_new(NULL));
        assert_se(c = hashmap_iterated_cache_new(m));
        compare_cache(m, c);

        for (int stage = 0; stage < 100; stage++) {

                for (int i = 0; i < 100; i++) {
                        int foo = stage * 1000 + i;

                        assert_se(hashmap_put(m, INT_TO_PTR(foo), INT_TO_PTR(foo + 777)) == 1);
                }

                compare_cache(m, c);

                if (!(stage % 10)) {
                        for (int i = 0; i < 100; i++) {
                                int foo = stage * 1000 + i;

                                assert_se(hashmap_remove(m, INT_TO_PTR(foo)) == INT_TO_PTR(foo + 777));
                        }

                        compare_cache(m, c);
                }
        }

        hashmap_clear(m);
        compare_cache(m, c);

        assert_se(hashmap_free(m) == NULL);
        assert_se(iterated_cache_free(c) == NULL);
}

static void test_path_hashmap(void) {
        _cleanup_hashmap_free_ Hashmap *h = NULL;

        assert_se(h = hashmap_new(&path_hash_ops));

        assert_se(hashmap_put(h, "foo", INT_TO_PTR(1)) >= 0);
        assert_se(hashmap_put(h, "/foo", INT_TO_PTR(2)) >= 0);
        assert_se(hashmap_put(h, "//foo", INT_TO_PTR(3)) == -EEXIST);
        assert_se(hashmap_put(h, "//foox/", INT_TO_PTR(4)) >= 0);
        assert_se(hashmap_put(h, "/foox////", INT_TO_PTR(5)) == -EEXIST);
        assert_se(hashmap_put(h, "foo//////bar/quux//", INT_TO_PTR(6)) >= 0);
        assert_se(hashmap_put(h, "foo/bar//quux/", INT_TO_PTR(8)) == -EEXIST);

        assert_se(hashmap_get(h, "foo") == INT_TO_PTR(1));
        assert_se(hashmap_get(h, "foo/") == INT_TO_PTR(1));
        assert_se(hashmap_get(h, "foo////") == INT_TO_PTR(1));
        assert_se(hashmap_get(h, "/foo") == INT_TO_PTR(2));
        assert_se(hashmap_get(h, "//foo") == INT_TO_PTR(2));
        assert_se(hashmap_get(h, "/////foo////") == INT_TO_PTR(2));
        assert_se(hashmap_get(h, "/////foox////") == INT_TO_PTR(4));
        assert_se(hashmap_get(h, "/foox/") == INT_TO_PTR(4));
        assert_se(hashmap_get(h, "/foox") == INT_TO_PTR(4));
        assert_se(!hashmap_get(h, "foox"));
        assert_se(hashmap_get(h, "foo/bar/quux") == INT_TO_PTR(6));
        assert_se(hashmap_get(h, "foo////bar////quux/////") == INT_TO_PTR(6));
        assert_se(!hashmap_get(h, "/foo////bar////quux/////"));
}

int main(int argc, const char *argv[]) {
        test_hashmap_funcs();
        test_ordered_hashmap_funcs();

        test_ordered_hashmap_next();
        test_hashmap_free_with_destructor();
        test_uint64_compare_func();
        test_trivial_compare_func();
        test_string_compare_func();
        test_iterated_cache();
        test_path_hashmap();

        return 0;
}