(test) TRUNK-6603: Add unit tests for ProviderService APIException

api/src/test/java/org/openmrs/api/impl/ProviderServiceImplTest.java

@@ -0,0 +1,42 @@
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.openmrs.Provider;
+import org.openmrs.api.APIException;
+import org.openmrs.api.db.ProviderDAO;
+import org.openmrs.api.impl.ProviderServiceImpl;
+
+public class ProviderServiceImplTest {
+    private ProviderServiceImpl service;
+    private ProviderDAO dao;
+
+    @BeforeEach
+    public void setup() {
+        service = new ProviderServiceImpl();
+        dao = mock(ProviderDAO.class);
+        service.setProviderDAO(dao);
+    }
+
+    @Test
+    public void getProviderByUuid_shouldReturnProvider_whenProviderExists() {
+        String uuid = "test-uuid";
+        Provider provider = new Provider();
+        when(dao.getProviderByUuid(uuid)).thenReturn(provider);
+        Provider result = service.getProviderByUuid(uuid);
+        assertNotNull(result);
+        assertEquals(provider, result);
+    }
+
+    @Test
+    public void getProviderByUuid_shouldThrowException_whenProviderNotFound() {
+        String uuid = "invalid-uuid";
+        when(dao.getProviderByUuid(uuid)).thenReturn(null);
+        assertThrows(APIException.class, () -> {
+            service.getProviderByUuid(uuid);
+        });
+    }
+}