diff --git a/src/test/java/ch/usi/inf/sa4/sanmarinoes/smarthut/service/DevicePopulationServiceTests.java b/src/test/java/ch/usi/inf/sa4/sanmarinoes/smarthut/service/DevicePopulationServiceTests.java
new file mode 100644
index 0000000..693d11b
--- /dev/null
+++ b/src/test/java/ch/usi/inf/sa4/sanmarinoes/smarthut/service/DevicePopulationServiceTests.java
@@ -0,0 +1,42 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.service;
+
+import static org.mockito.Mockito.*;
+
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.*;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.security.test.context.support.WithMockUser;
+
+@ExtendWith(MockitoExtension.class)
+@WithMockUser(username = "user")
+@DisplayName("DevicePopulationService test")
+public class DevicePopulationServiceTests {
+    @InjectMocks private DevicePopulationService service;
+
+    @Mock private ThermostatPopulationService populationService;
+
+    private void helper(Thermostat t) {
+        t.setMeasuredTemperature(new BigDecimal(1));
+    }
+
+    @Test
+    public void testPopulateComputedFields() {
+        Curtains curtains = new Curtains();
+        RegularLight light = new RegularLight();
+        Thermostat t1 = new Thermostat();
+        RegularLight light2 = new RegularLight();
+        ArrayList<Device> list = new ArrayList<>();
+        list.add(curtains);
+        list.add(light);
+        list.add(t1);
+        list.add(light2);
+        doNothing().when(populationService).populateMeasuredTemperature(t1);
+        service.populateComputedFields(list);
+    }
+}