findall and findhosts should be tested in guestcontroller

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

@@ -0,0 +1,81 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.controller;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.when;
+
+import ch.usi.inf.sa4.sanmarinoes.smarthut.dto.UserResponse;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.EagerUserRepository;
+import ch.usi.inf.sa4.sanmarinoes.smarthut.models.User;
+import java.security.Principal;
+import java.util.List;
+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.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+@ExtendWith(MockitoExtension.class)
+@WithMockUser(username = "user")
+public class GuestControllerTests {
+    @InjectMocks private GuestController guestController;
+
+    @Mock private Principal mockPrincipal;
+    @Mock private EagerUserRepository userRepository;
+
+    private final User user;
+
+    public GuestControllerTests() {
+        user = new User();
+        user.setName("user");
+        user.setId(12L);
+    }
+
+    @BeforeEach
+    public void setup() {
+        guestController = new GuestController();
+    }
+
+    @DisplayName("Check that the list is empty when we have no hosts/guests")
+    @Test
+    public void findAllEmptyTest() {
+        when(mockPrincipal.getName()).thenReturn("user");
+        Mockito.doReturn(List.of()).when(userRepository.findByUsername("user"));
+        List<UserResponse> l = guestController.findAll();
+        assertThat(l.isEmpty());
+    }
+
+    @DisplayName("Check that the list contains the elements added")
+    @Test
+    public void findAllTest() {
+        User host = new User();
+        User guest = new User();
+
+        when(mockPrincipal.getName()).thenReturn("user");
+        when(userRepository.findByUsername(mockPrincipal.getName())).thenReturn(this.user);
+        Mockito.doReturn(List.of(host, guest)).when(userRepository.findByUsername("user"));
+        assertThat(guestController.findAll()).isSameAs(List.of(host, guest));
+    }
+
+    @DisplayName("Check that we get empty host list")
+    @Test
+    public void findHostsEmptyTest() {
+        when(mockPrincipal.getName()).thenReturn("user2");
+        Mockito.doReturn(List.of()).when(userRepository.findByUsername("user2"));
+        assertThat(guestController.findHosts(mockPrincipal).isEmpty());
+    }
+
+    @DisplayName("Check that the host list contains the hosts")
+    @Test
+    public void findHostsTest() {
+        User host1 = new User();
+        User host2 = new User();
+
+        when(mockPrincipal.getName()).thenReturn("user");
+        when(userRepository.findByUsername(mockPrincipal.getName())).thenReturn(this.user);
+        Mockito.doReturn(List.of(host1, host2)).when(userRepository.findByUsername("user"));
+        assertThat(guestController.findHosts(mockPrincipal)).isSameAs(List.of(host1, host2));
+    }
+}