container: root: test: utility: add tests for common

container/src/root/test/common/utility.hh

@@ -25,9 +25,11 @@
 
 #include <cstdint>
 #include <limits>
+#include <memory>
 #include <type_traits>
 #include <vector>
 
+#include "../../common/utility.hh"
 #include "../../src/utility.hh"
 
 //! \namespace dfi
@@ -93,6 +95,17 @@ struct ByteFixture
 
   t_byte byte;
 };
+
+//! \brief Common fixture
+//! \note Not a 'common' fixture but rather a fixture for 'common'
+//! \since docker-finance 1.1.0
+struct CommonFixture
+{
+ protected:
+  using EErrorCode = ::TInterpreter::EErrorCode;
+  std::unique_ptr<EErrorCode> ecode;
+  CommonFixture() { ecode = std::make_unique<EErrorCode>(); }
+};
 }  // namespace tests
 }  // namespace dfi