"BAEL-3407: Add examples for injecting Spring components in MapStruct" (#10778)

Co-authored-by: Krzysztof Woyke <krzysztof.woyke.sp@lhsystems.com>

mapstruct/src/test/java/com/baeldung/mapper/SimpleDestinationMapperUsingInjectedIntegrationTest.java

@@ -0,0 +1,35 @@
+package com.baeldung.mapper;
+
+import com.baeldung.dto.SimpleSource;
+import com.baeldung.entity.SimpleDestination;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration("classpath:applicationContext.xml")
+public class SimpleDestinationMapperUsingInjectedIntegrationTest {
+
+    @Autowired
+    private SimpleDestinationMapperUsingInjectedService mapper;
+
+    @Test
+    public void givenSourceToDestination_whenMaps_thenNameEnriched() {
+        // Given
+        SimpleSource source = new SimpleSource();
+        source.setName("Bob");
+        source.setDescription("The Builder");
+
+        // When
+        SimpleDestination destination = mapper.sourceToDestination(source);
+
+        // Then
+        assertThat(destination).isNotNull();
+        assertThat(destination.getName()).isEqualTo("-:: Bob ::-");
+        assertThat(destination.getDescription()).isEqualTo("The Builder");
+    }
+}