---
 unit/test-hashmap.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/unit/test-hashmap.c b/unit/test-hashmap.c
index 836ed1c..75c249c 100644
--- a/unit/test-hashmap.c
+++ b/unit/test-hashmap.c
@@ -164,6 +164,14 @@ static void test_str(const void *test_data)
 		assert(ptr == itr);
 	}
 
+	/* check we can replace entry with new value */
+	entries = l_hashmap_size(hashmap);
+	assert(l_hashmap_insert(hashmap, strings[0], (char *)strings[0]));
+	assert(l_hashmap_insert(hashmap, duplicate, (char *)duplicate));
+	assert(entries == l_hashmap_size(hashmap));
+
+	l_hashmap_destroy(hashmap, NULL);
+
 	/* check that value free function works */
 	hashmap = l_hashmap_string_new();
 	assert(l_hashmap_set_value_free_function(hashmap, free_value,
-- 
1.8.3.1