I can't mock a method

src/test/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/RegularLightControllerTests.java

@@ -0,0 +1,126 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.controller;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.when;
+
+import ch.usi.inf.sa4.sanmarinoes.smarthut.dto.SwitchableSaveRequest;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.error.NotFoundException;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.DeviceRepository;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.RegularLight;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.RegularLightRepository;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.SceneRepository;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.State;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.StateRepository;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.UserRepository;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.service.DeviceService;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.utils.Utils;
+import java.security.Principal;
+import lombok.SneakyThrows;
+import org.junit.jupiter.api.BeforeEach;
+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.mock.web.MockHttpServletRequest;
+import org.springframework.security.test.context.support.WithMockUser;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
+@ExtendWith(MockitoExtension.class)
+@WithMockUser(username = "user")
+public class RegularLightControllerTests {
+
+    @InjectMocks private RegularLightController regularLightController;
+
+    @Mock private RegularLightRepository regularLightRepository;
+
+    @Mock private SceneRepository sceneRepository;
+
+    @Mock private StateRepository<State> stateRepository;
+
+    @Mock private DeviceService deviceService;
+
+    @Mock private Principal mockPrincipal;
+
+    @Mock private UserRepository userRepository;
+
+    @Mock private DeviceRepository<RegularLight> deviceRepository;
+
+    @BeforeEach
+    public void setup() {
+        when(mockPrincipal.getName()).thenReturn("user");
+    }
+
+    private void checkRegularLightAgainstRequest(
+            final RegularLight toCheck, final SwitchableSaveRequest request) {
+        assertThat(toCheck).isNotNull();
+        assertThat(toCheck.isOn()).isEqualTo(request.isOn());
+        assertThat(toCheck.getName()).isEqualTo(request.getName());
+        assertThat(toCheck.getRoomId()).isEqualTo(request.getRoomId());
+    }
+
+    @Test
+    @DisplayName("when creating should return the same object")
+    @SneakyThrows(NotFoundException.class)
+    public void testCreate() {
+        doNothing().when(deviceService).throwIfRoomNotOwned(anyLong(), eq("user"));
+        when(deviceService.saveAsOwner(any(RegularLight.class), eq("user")))
+                .thenAnswer(i -> i.getArguments()[0]);
+
+        MockHttpServletRequest request = new MockHttpServletRequest();
+        RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(request));
+
+        final SwitchableSaveRequest toSend = new SwitchableSaveRequest();
+        toSend.setName("rl");
+        toSend.setRoomId(20L);
+        toSend.setOn(true);
+
+        final RegularLight regularLight = regularLightController.create(toSend, mockPrincipal);
+
+        checkRegularLightAgainstRequest(regularLight, toSend);
+    }
+
+    @Test
+    @DisplayName("when updating should return the same object")
+    @SneakyThrows(NotFoundException.class)
+    public void testUpdate() {
+
+        final SwitchableSaveRequest toSend = new SwitchableSaveRequest();
+        toSend.setId(50L);
+        toSend.setName("rl");
+        toSend.setRoomId(20L);
+        toSend.setOn(true);
+
+        final RegularLight toUpdate = new RegularLight();
+        toUpdate.setName("OOO");
+        toUpdate.setRoomId(40L);
+        toSend.setId(50L);
+        toUpdate.setOn(false);
+
+        when(regularLightRepository.findByIdAndUserId(anyLong(), anyLong()))
+                .thenReturn(java.util.Optional.of(toUpdate));
+
+        when(deviceService.saveAsGuest(any(RegularLight.class), eq("user"), anyLong()))
+                .thenAnswer(i -> i.getArguments()[0]);
+
+        when(Utils.returnIfGuest(
+                        any(UserRepository.class),
+                        any(RegularLight.class),
+                        anyLong(),
+                        any(Principal.class)))
+                .thenAnswer(i -> i.getArguments()[1]);
+
+        MockHttpServletRequest request = new MockHttpServletRequest();
+        RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(request));
+
+        final RegularLight regularLight = regularLightController.update(toSend, mockPrincipal, 20L);
+
+        checkRegularLightAgainstRequest(regularLight, toSend);
+    }
+}