Revert "BAEL-4134"

mapstruct/src/test/java/com/baeldung/mapstruct/mappingCollections/mapper/CompanyMapperAdderPreferredUnitTest.java

@@ -0,0 +1,32 @@
+package com.baeldung.mapstruct.mappingCollections.mapper;
+
+import com.baeldung.mapstruct.mappingCollections.dto.CompanyDTO;
+import com.baeldung.mapstruct.mappingCollections.dto.EmployeeDTO;
+import com.baeldung.mapstruct.mappingCollections.model.Company;
+import com.baeldung.mapstruct.mappingCollections.model.Employee;
+import org.junit.jupiter.api.Test;
+import org.mapstruct.factory.Mappers;
+
+import java.util.Collections;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class CompanyMapperAdderPreferredUnitTest {
+
+    private CompanyMapperAdderPreferred companyMapper = Mappers.getMapper(CompanyMapperAdderPreferred.class);
+
+    @Test
+    void whenMappingToCompanyDTO_thenExpectCorrectMappingResult() {
+        Employee employee = new Employee("John", "Doe");
+        Company company = new Company();
+        company.setEmployees(Collections.singletonList(employee));
+
+        CompanyDTO result = companyMapper.map(company);
+
+        List<EmployeeDTO> employees = result.getEmployees();
+        assertThat(employees).hasSize(1);
+        assertThat(employees.get(0).getFirstName()).isEqualTo("John");
+        assertThat(employees.get(0).getLastName()).isEqualTo("Doe");
+    }
+}

mapstruct/src/test/java/com/baeldung/mapstruct/mappingCollections/mapper/CompanyMapperUnitTest.java

@@ -0,0 +1,32 @@
+package com.baeldung.mapstruct.mappingCollections.mapper;
+
+import com.baeldung.mapstruct.mappingCollections.dto.CompanyDTO;
+import com.baeldung.mapstruct.mappingCollections.dto.EmployeeDTO;
+import com.baeldung.mapstruct.mappingCollections.model.Company;
+import com.baeldung.mapstruct.mappingCollections.model.Employee;
+import org.junit.jupiter.api.Test;
+import org.mapstruct.factory.Mappers;
+
+import java.util.Collections;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class CompanyMapperUnitTest {
+
+    private CompanyMapper companyMapper = Mappers.getMapper(CompanyMapper.class);
+
+    @Test
+    void whenMappingToCompanyDTO_thenExpectCorrectMappingResult() {
+        Employee employee = new Employee("John", "Doe");
+        Company company = new Company();
+        company.setEmployees(Collections.singletonList(employee));
+
+        CompanyDTO result = companyMapper.map(company);
+
+        List<EmployeeDTO> employees = result.getEmployees();
+        assertThat(employees).hasSize(1);
+        assertThat(employees.get(0).getFirstName()).isEqualTo("John");
+        assertThat(employees.get(0).getLastName()).isEqualTo("Doe");
+    }
+}

mapstruct/src/test/java/com/baeldung/mapstruct/mappingCollections/mapper/EmployeeFullNameMapperUnitTest.java

@@ -0,0 +1,26 @@
+package com.baeldung.mapstruct.mappingCollections.mapper;
+
+import com.baeldung.mapstruct.mappingCollections.dto.EmployeeFullNameDTO;
+import com.baeldung.mapstruct.mappingCollections.model.Employee;
+import org.junit.jupiter.api.Test;
+import org.mapstruct.factory.Mappers;
+
+import java.util.Collections;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class EmployeeFullNameMapperUnitTest {
+
+    private EmployeeFullNameMapper employeeMapper = Mappers.getMapper(EmployeeFullNameMapper.class);
+
+    @Test
+    void whenMappingToEmployeeFullNameDTOList_thenExpectCorrectMappingResult() {
+        Employee employee = new Employee("John", "Doe");
+
+        List<EmployeeFullNameDTO> result = employeeMapper.map(Collections.singletonList(employee));
+
+        assertThat(result).hasSize(1);
+        assertThat(result.get(0).getFullName()).isEqualTo("John Doe");
+    }
+}

mapstruct/src/test/java/com/baeldung/mapstruct/mappingCollections/mapper/EmployeeMapperUnitTest.java

@@ -0,0 +1,51 @@
+package com.baeldung.mapstruct.mappingCollections.mapper;
+
+import com.baeldung.mapstruct.mappingCollections.dto.EmployeeDTO;
+import com.baeldung.mapstruct.mappingCollections.model.Employee;
+import org.junit.jupiter.api.Test;
+import org.mapstruct.factory.Mappers;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class EmployeeMapperUnitTest {
+
+    private EmployeeMapper employeeMapper = Mappers.getMapper(EmployeeMapper.class);
+
+    @Test
+    void whenMappingToEmployeeDTOList_thenExpectCorrectMappingResult() {
+        Employee employee = new Employee("John", "Doe");
+
+        List<EmployeeDTO> result = employeeMapper.map(Collections.singletonList(employee));
+
+        assertThat(result).hasSize(1);
+        assertThat(result.get(0).getFirstName()).isEqualTo("John");
+        assertThat(result.get(0).getLastName()).isEqualTo("Doe");
+    }
+
+    @Test
+    void whenMappingToEmployeeDTOSet_thenExpectCorrectMappingResult() {
+        Employee employee = new Employee("John", "Doe");
+
+        Set<EmployeeDTO> result = employeeMapper.map(Collections.singleton(employee));
+
+        assertThat(result).hasSize(1);
+        assertThat(result.iterator().next().getFirstName()).isEqualTo("John");
+        assertThat(result.iterator().next().getLastName()).isEqualTo("Doe");
+    }
+
+    @Test
+    void whenMappingToEmployeeDTOMap_thenExpectCorrectMappingResult() {
+        Employee employee = new Employee("John", "Doe");
+
+        Map<String, EmployeeDTO> result = employeeMapper.map(Collections.singletonMap("1", employee));
+
+        assertThat(result).hasSize(1);
+        assertThat(result.get("1").getFirstName()).isEqualTo("John");
+        assertThat(result.get("1").getLastName()).isEqualTo("Doe");
+    }
+}