WIP: files

test/test_transaction.cpp

@@ -30,6 +30,7 @@
 #include "gtest/gtest-test-part.h"     // for SuiteApiResolver, TestPa...
 #include "gtest/gtest_pred_impl.h"     // for Test, TestInfo, TEST
 #include <memory>                      // for allocator, unique_ptr
+#include <stdexcept>                   // for out_of_range
 #include <string>                      // for string, basic_string
 #include <utility>                     // for move
 #include <vector>                      // for vector