testsuite: add test for growing then shrinking a hash

diff --git a/testsuite/test-hash.c b/testsuite/test-hash.c
index c1aa1ebd9f2db43ec037a2ab0d6594d406943792..1bea04e6384e556b61bb3883f1970e04457e66d8 100644 (file)
--- a/testsuite/test-hash.c
+++ b/testsuite/test-hash.c
@@ -246,4 +246,37 @@ static int test_hash_add_unique(const struct test *t)
 DEFINE_TEST(test_hash_add_unique,
                .description = "test hash_add_unique with different key orders")
 
+
+static int test_hash_massive_add_del(const struct test *t)
+{
+       char buf[1024 * 8];
+       char *k;
+       struct hash *h;
+       unsigned int i, N = 1024;
+
+       h = hash_new(8, NULL);
+
+       k = &buf[0];
+       for (i = 0; i < N; i++) {
+               snprintf(k, 8, "k%d", i);
+               hash_add(h, k, k);
+               k += 8;
+       }
+
+       assert_return(hash_get_count(h) == N, EXIT_FAILURE);
+
+       k = &buf[0];
+       for (i = 0; i < N; i++) {
+               hash_del(h, k);
+               k += 8;
+       }
+
+       assert_return(hash_get_count(h) == 0, EXIT_FAILURE);
+
+       hash_free(h);
+       return 0;
+}
+DEFINE_TEST(test_hash_massive_add_del,
+               .description = "test multiple adds followed by multiple dels")
+
 TESTSUITE_MAIN();