diff --git a/tests/src/helpers/interfaces/json_storage_helpers.hpp b/tests/src/helpers/interfaces/json_storage_helpers.hpp
new file mode 100644
index 0000000..b5d4004
--- /dev/null
+++ b/tests/src/helpers/interfaces/json_storage_helpers.hpp
@@ -0,0 +1,19 @@
+#pragma once
+
+#include "interfaces/json_storage.hpp"
+
+#include <gmock/gmock.h>
+
+namespace interfaces
+{
+
+inline void PrintTo(const JsonStorage::FilePath& o, std::ostream* os)
+{
+    (*os) << static_cast<std::filesystem::path>(o);
+}
+inline void PrintTo(const JsonStorage::DirectoryPath& o, std::ostream* os)
+{
+    (*os) << static_cast<std::filesystem::path>(o);
+}
+
+} // namespace interfaces
\ No newline at end of file
diff --git a/tests/src/helpers/interfaces/labeled_reading_parameter_helpers.hpp b/tests/src/helpers/interfaces/labeled_reading_parameter_helpers.hpp
new file mode 100644
index 0000000..3666a62
--- /dev/null
+++ b/tests/src/helpers/interfaces/labeled_reading_parameter_helpers.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "helpers/interfaces/labeled_sensor_parameter_helpers.hpp"
+#include "interfaces/types.hpp"
+
+#include <ostream>
+
+#include <gmock/gmock.h>
+
+namespace utils
+{
+
+inline void PrintTo(const LabeledMetricParameters& o, std::ostream* os)
+{
+    using testing::PrintToString;
+
+    (*os) << "{ ";
+    (*os) << utils::tstring::SensorPaths::str() << ": "
+          << PrintToString(o.at_label<utils::tstring::SensorPaths>()) << ", ";
+    (*os) << utils::tstring::OperationType::str() << ": "
+          << PrintToString(o.at_label<utils::tstring::OperationType>()) << ", ";
+    (*os) << utils::tstring::Id::str() << ": "
+          << PrintToString(o.at_label<utils::tstring::Id>()) << ", ";
+    (*os) << utils::tstring::MetricMetadata::str() << ": "
+          << PrintToString(o.at_label<utils::tstring::MetricMetadata>());
+    (*os) << " }";
+}
+
+} // namespace utils
\ No newline at end of file
diff --git a/tests/src/helpers/interfaces/labeled_sensor_parameter_helpers.hpp b/tests/src/helpers/interfaces/labeled_sensor_parameter_helpers.hpp
new file mode 100644
index 0000000..ef2eb6b
--- /dev/null
+++ b/tests/src/helpers/interfaces/labeled_sensor_parameter_helpers.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#include "interfaces/types.hpp"
+
+#include <ostream>
+
+#include <gmock/gmock.h>
+
+namespace utils
+{
+
+inline void PrintTo(const LabeledSensorParameters& o, std::ostream* os)
+{
+    using testing::PrintToString;
+
+    (*os) << "{ ";
+    (*os) << utils::tstring::Service::str() << ": "
+          << PrintToString(o.at_label<utils::tstring::Service>()) << ", ";
+    (*os) << utils::tstring::Path::str() << ": "
+          << PrintToString(o.at_label<utils::tstring::Path>());
+    (*os) << " }";
+}
+
+} // namespace utils
\ No newline at end of file
diff --git a/tests/src/helpers/sensor_id_helpers.hpp b/tests/src/helpers/interfaces/sensor_id_helpers.hpp
similarity index 100%
rename from tests/src/helpers/sensor_id_helpers.hpp
rename to tests/src/helpers/interfaces/sensor_id_helpers.hpp