1 files changed, 17 insertions, 0 deletions

diff --git a/listpool/test/listpool_test.c b/listpool/test/listpool_test.c
index cb54d00..7a7b0cf 100644
--- a/listpool/test/listpool_test.c
+++ b/listpool/test/listpool_test.c
@@ -137,6 +137,23 @@ TEST_CASE(listpool_traverse_full) {
   TEST_EQUAL(sum(&pool), (NUM_BLOCKS) * (NUM_BLOCKS + 1) / 2);
 }
 
+// Get the ith (allocated) block.
+TEST_CASE(listpool_get_block) {
+  test_pool pool;
+  listpool_make(&pool);
+
+  for (int i = 0; i < NUM_BLOCKS; ++i) {
+    int* block = listpool_alloc(&pool);
+    TEST_TRUE(block != 0);
+    *block = i;
+    TEST_EQUAL(listpool_get_block_index(&pool, block), (size_t)i);
+  }
+
+  for (int i = 0; i < NUM_BLOCKS; ++i) {
+    TEST_EQUAL(*listpool_get_block(&pool, i), i);
+  }
+}
+
 // Remove a value from the list.
 TEST_CASE(listpool_remove_value) {
   test_pool pool;