chore: adding tests

accounting_reporting_core/src/test/java/org/cardanofoundation/lob/app/accounting_reporting_core/service/internal/TransactionConverterTest.java

@@ -0,0 +1,99 @@
+package org.cardanofoundation.lob.app.accounting_reporting_core.service.internal;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.Optional;
+import java.util.Set;
+
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+import org.cardanofoundation.lob.app.accounting_reporting_core.domain.core.SystemExtractionParameters;
+import org.cardanofoundation.lob.app.accounting_reporting_core.domain.core.Transaction;
+import org.cardanofoundation.lob.app.accounting_reporting_core.domain.core.TransactionType;
+import org.cardanofoundation.lob.app.accounting_reporting_core.domain.core.UserExtractionParameters;
+import org.cardanofoundation.lob.app.accounting_reporting_core.domain.entity.FilteringParameters;
+import org.cardanofoundation.lob.app.accounting_reporting_core.domain.entity.TransactionEntity;
+
+@ExtendWith(MockitoExtension.class)
+class TransactionConverterTest {
+
+    @Mock
+    private CoreCurrencyService coreCurrencyService;
+    @Mock
+    OrganisationConverter organisationConverter;
+
+    @InjectMocks
+    private TransactionConverter transactionConverter;
+
+    private UserExtractionParameters userParams;
+    private SystemExtractionParameters systemParams;
+    private Transaction transaction;
+    private TransactionEntity transactionEntity;
+
+    @BeforeEach
+    void setUp() {
+        userParams = mock(UserExtractionParameters.class);
+        systemParams = mock(SystemExtractionParameters.class);
+        transaction = mock(Transaction.class);
+        transactionEntity = mock(TransactionEntity.class);
+    }
+
+    @Test
+    void testConvertToDbDetached_WithSystemAndUserParams() {
+        when(userParams.getOrganisationId()).thenReturn("org123");
+        FilteringParameters result = transactionConverter.convertToDbDetached(systemParams, userParams);
+        Assertions.assertNotNull(result);
+        Assertions.assertEquals("org123", result.getOrganisationId());
+    }
+
+    @Test
+    void testConvertToDbDetached_WithOptionalSystemParams() {
+        when(userParams.getOrganisationId()).thenReturn("org123");
+        Optional<SystemExtractionParameters> optionalParams = Optional.of(systemParams);
+        FilteringParameters result = transactionConverter.convertToDbDetached(userParams, optionalParams);
+        Assertions.assertNotNull(result);
+        Assertions.assertEquals("org123", result.getOrganisationId());
+    }
+
+    @Test
+    void testConvertToDbDetached_UserParamsOnly() {
+        when(userParams.getOrganisationId()).thenReturn("org123");
+        FilteringParameters result = transactionConverter.convertToDbDetached(userParams);
+        Assertions.assertNotNull(result);
+        Assertions.assertEquals("org123", result.getOrganisationId());
+    }
+
+    @Test
+    void testConvertToDbDetached_SetOfTransactions() {
+        Set<Transaction> transactions = Set.of(transaction);
+        Set<TransactionEntity> result = transactionConverter.convertToDbDetached(transactions);
+        Assertions.assertNotNull(result);
+        Assertions.assertEquals(1, result.size());
+    }
+
+    @Test
+    void testConvertFromDb_SetOfTransactionEntities() {
+        Set<TransactionEntity> transactionEntities = Set.of(transactionEntity);
+        Set<Transaction> result = transactionConverter.convertFromDb(transactionEntities);
+        Assertions.assertNotNull(result);
+        Assertions.assertEquals(1, result.size());
+    }
+
+    @Test
+    void testCopyFields() {
+        TransactionEntity attached = new TransactionEntity();
+        TransactionEntity detached = new TransactionEntity();
+        detached.setTransactionType(TransactionType.BillCredit);
+
+        transactionConverter.copyFields(attached, detached);
+        Assertions.assertEquals(TransactionType.BillCredit, attached.getTransactionType());
+    }
+}