test: add static test for util::Result memory usage

Suggested by Martin Leitner-Ankerl <martin.ankerl@gmail.com> bitcoin#25722 (comment) Co-authored-by: Martin Leitner-Ankerl <martin.ankerl@gmail.com>
ryanofsky · Dec 6, 2024 · 5e14665 · 5e14665
1 parent 643b881
commit 5e14665
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/test/result_tests.cpp b/src/test/result_tests.cpp
@@ -180,6 +180,12 @@ void ExpectFail(const util::Result<T, F>& result, bilingual_str str, Args&&... a
     BOOST_CHECK_EQUAL(result.GetFailure(), F{std::forward<Args>(args)...});
 }
 
+BOOST_AUTO_TEST_CASE(check_sizes)
+{
+    static_assert(sizeof(util::Result<int>) == sizeof(void*)*2);
+    static_assert(sizeof(util::Result<void>) == sizeof(void*));
+}
+
 BOOST_AUTO_TEST_CASE(check_returned)
 {
     ExpectResult(VoidSuccessFn(), true, {});