From d3a71850e2731613db64ff3c5ab72f2cc921ffd2 Mon Sep 17 00:00:00 2001
From: Jonas Gunz <himself@jonasgunz.de>
Date: Tue, 21 Sep 2021 22:29:46 +0200
Subject: tests: tree, dns increase coverage

---
 tests/tree.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'tests/tree.c')

diff --git a/tests/tree.c b/tests/tree.c
index ccfb3fe..20f5ee2 100644
--- a/tests/tree.c
+++ b/tests/tree.c
@@ -39,6 +39,9 @@ START_TEST(tree_basic) {
 
 	ck_assert_int_eq(tree_balanced_insert( &root, (void**)data, keys, len ),0);
 
+	/* Check double insertion protection */
+	ck_assert_int_ne( tree_insert( &root, keys[0], (void*)data[0] ), 0 );
+
 	for ( i = 0; i < len; i++ ) {
 		ck_assert_str_eq( tree_get(&root, keys[i]), data[i] );
 	}
-- 
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