add test

Signed-off-by: m12watanabe1a <40206149+m12watanabe1a@users.noreply.github.com>
ros2 · Apr 29, 2024 · 4f185c6 · 4f185c6
1 parent 7f22517
commit 4f185c6
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/rosidl_runtime_c/test/test_string_functions.cpp b/rosidl_runtime_c/test/test_string_functions.cpp
@@ -78,6 +78,18 @@ TEST(string_functions, resize_assignn) {
   EXPECT_TRUE(rosidl_runtime_c__String__init(&s));
   EXPECT_TRUE(rosidl_runtime_c__String__init(&t));
 
+  EXPECT_FALSE(rosidl_runtime_c__String__resize(nullptr, s_size));
+
+  // If you're here because this test crashed your computer, it might be because it just tried
+  // to allocate SIZE_MAX * 2 bytes, which means someone removed an important check.
+  EXPECT_FALSE(rosidl_runtime_c__String__resize(nullptr, SIZE_MAX * 2));
+
+  EXPECT_TRUE(rosidl_runtime_c__String__resize(&s, s_size));
+  EXPECT_EQ(s.size, s_size);
+  EXPECT_EQ(s.capacity, s_size + 1u);
+  EXPECT_NE(s.data, nullptr);
+  EXPECT_EQ(s.data[s_size], 0);
+
   EXPECT_FALSE(rosidl_runtime_c__String__assign(nullptr, nullptr));
   EXPECT_FALSE(rosidl_runtime_c__String__assignn(nullptr, nullptr, 0));
   EXPECT_FALSE(rosidl_runtime_c__String__assignn(&s, nullptr, 0));