79   void* root = nullptr;  in TEST()  local
86   ASSERT_EQ(nullptr, tfind(&n1, &root, node_cmp));  in TEST()
87   ASSERT_EQ(nullptr, tfind(&n2, &root, node_cmp));  in TEST()
88   ASSERT_EQ(nullptr, tfind(&n3, &root, node_cmp));  in TEST()
91   void* i1 = tsearch(&n1, &root, node_cmp);  in TEST()
95   ASSERT_EQ(i1, tfind(&n1, &root, node_cmp));  in TEST()
96   ASSERT_EQ(nullptr, tfind(&n2, &root, node_cmp));  in TEST()
97   ASSERT_EQ(nullptr, tfind(&n3, &root, node_cmp));  in TEST()
100   ASSERT_NE(nullptr, tsearch(&n2, &root, node_cmp));  in TEST()
101   ASSERT_NE(nullptr, tsearch(&n3, &root, node_cmp));  in TEST()
105   twalk(root, node_walk);  in TEST()
113   tdestroy(root, node_free);  in TEST()
127   void* root = nullptr;  in TEST()  local
130   ASSERT_NE(nullptr, tsearch(&n1, &root, pod_node_cmp));  in TEST()
134   ASSERT_EQ(nullptr, tdelete(&not_there, &root, pod_node_cmp));  in TEST()
135   ASSERT_NE(nullptr, tdelete(&n1, &root, pod_node_cmp));  in TEST()