one more c test

tskit-dev · Nov 6, 2023 · 37f5387 · 37f5387
1 parent d655dec
commit 37f5387
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/c/tests/test_trees.c b/c/tests/test_trees.c
@@ -8256,6 +8256,12 @@ test_extend_edges_errors(void)
     const char *migrations = "0  10  0  0  1  0.5\n"
                              "0  10  0  1  0  1.5\n";
 
+    tsk_treeseq_from_text(
+        &ts, 10, nodes, edges, NULL, sites, mutations, NULL, NULL, 0);
+    ret = tsk_treeseq_extend_edges(&ts, -2, 0, &ets);
+    CU_ASSERT_EQUAL_FATAL(ret, TSK_ERR_EXTEND_EDGES_BAD_MAXITER);
+    tsk_treeseq_free(&ts);
+
     tsk_treeseq_from_text(
         &ts, 10, nodes, edges, migrations, sites, mutations, NULL, NULL, 0);
     ret = tsk_treeseq_extend_edges(&ts, 10, 0, &ets);