Test: add unit tests for VetResponse mapping

src/test/java/org/example/vet1177/dto/response/vet/VetResponseTest.java

@@ -0,0 +1,100 @@
+package org.example.vet1177.dto.response.vet;
+
+import org.example.vet1177.entities.*;
+import org.junit.jupiter.api.Test;
+
+import java.lang.reflect.Field;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class VetResponseTest {
+
+    @Test
+    void should_map_all_fields_correctly_when_clinic_exists() throws Exception {
+        // Arrange
+        UUID userId = UUID.randomUUID();
+
+        Clinic clinic = new Clinic();
+        clinic.setName("Happy Pets Clinic");
+
+        User user = new User();
+        user.setName("Dr. Smith");
+        user.setEmail("dr.smith@test.com");
+        user.setActive(true);
+        user.setClinic(clinic);
+
+        setUserId(user, userId);
+
+        Vet vet = new Vet();
+        vet.setUser(user);
+        vet.setLicenseId("LIC123");
+        vet.setSpecialization("Surgery");
+        vet.setBookingInfo("Available weekdays");
+
+        setVetUserId(vet, userId);
+
+        // Act
+        VetResponse response = VetResponse.from(vet);
+
+        // Assert
+        assertEquals(userId, response.userId());
+        assertEquals("Dr. Smith", response.name());
+        assertEquals("dr.smith@test.com", response.email());
+        assertEquals("LIC123", response.licenseId());
+        assertEquals("Surgery", response.specialization());
+        assertEquals("Available weekdays", response.bookingInfo());
+        assertEquals("Happy Pets Clinic", response.clinicName());
+        assertTrue(response.isActive());
+    }
+
+    @Test
+    void should_set_clinicName_to_null_when_clinic_is_null() throws Exception {
+        // Arrange
+        UUID userId = UUID.randomUUID();
+
+        User user = new User();
+        user.setName("Dr. No Clinic");
+        user.setEmail("noclinic@test.com");
+        user.setActive(false);
+        user.setClinic(null);
+
+        setUserId(user, userId);
+
+        Vet vet = new Vet();
+        vet.setUser(user);
+        vet.setLicenseId("LIC999");
+        vet.setSpecialization("Dentistry");
+        vet.setBookingInfo("Weekends");
+
+        setVetUserId(vet, userId);
+
+        // Act
+        VetResponse response = VetResponse.from(vet);
+
+        // Assert
+        assertEquals(userId, response.userId());
+        assertEquals("Dr. No Clinic", response.name());
+        assertEquals("noclinic@test.com", response.email());
+        assertEquals("LIC999", response.licenseId());
+        assertEquals("Dentistry", response.specialization());
+        assertEquals("Weekends", response.bookingInfo());
+        assertNull(response.clinicName());
+        assertFalse(response.isActive());
+    }
+
+// Helper methods
+
+    private void setUserId(User user, UUID id) throws Exception {
+        Field field = User.class.getDeclaredField("id");
+        field.setAccessible(true);
+        field.set(user, id);
+    }
+
+    private void setVetUserId(Vet vet, UUID id) throws Exception {
+        Field field = Vet.class.getDeclaredField("userId");
+        field.setAccessible(true);
+        field.set(vet, id);
+    }
+
+}