diff --git a/tests/src/mocks/metric_mock.hpp b/tests/src/mocks/metric_mock.hpp
new file mode 100644
index 0000000..6150455
--- /dev/null
+++ b/tests/src/mocks/metric_mock.hpp
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "interfaces/metric.hpp"
+
+#include <gmock/gmock.h>
+
+class MetricMock : public interfaces::Metric
+{
+  public:
+    MetricMock()
+    {
+        using namespace testing;
+
+        ON_CALL(*this, getReadings())
+            .WillByDefault(ReturnRefOfCopy(std::vector<MetricValue>()));
+    }
+
+    MOCK_METHOD(const std::vector<MetricValue>&, getReadings, (),
+                (const, override));
+};