OZG-5412 intelliform-adapter: Fix IncomingfileGroup null

intelliform-adapter/src/main/java/de/ozgcloud/eingang/intelliform/DepositDataMapper.java

@@ -151,8 +151,11 @@ class DepositDataMapper {
 		return incomingFileMap.get(id);
 	}
 
-	private IncomingFileGroup createSingularFileGroup(IncomingFile incomingFile) {
-		return IncomingFileGroup.builder().file(incomingFile).build();
+	IncomingFileGroup createSingularFileGroup(IncomingFile incomingFile) {
+		return IncomingFileGroup.builder()
+				.name(incomingFile.getName())
+				.file(incomingFile)
+				.build();
 	}
 
 	private List<String> getNamesWithout(Collection<String> names, Collection<String> excludedStrings) {

intelliform-adapter/src/test/java/de/ozgcloud/eingang/intelliform/DepositDataMapperTest.java

@@ -39,6 +39,7 @@ import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
+import org.mockito.Mock;
 import org.mockito.Spy;
 
 import de.ozgcloud.eingang.common.errorhandling.TechnicalException;
@@ -200,4 +201,29 @@ class DepositDataMapperTest {
 		}
 	}
 
+	@DisplayName("create singular file group")
+	@Nested
+	class TestCreateSingularFileGroup {
+		@Mock
+		IncomingFile incomingFile;
+
+		@DisplayName("should have name")
+		@Test
+		void shouldHaveName() {
+			when(incomingFile.getName()).thenReturn("somename");
+
+			var fileGroup = mapper.createSingularFileGroup(incomingFile);
+
+			assertThat(fileGroup.getName()).isEqualTo(incomingFile.getName());
+		}
+
+		@DisplayName("should have file")
+		@Test
+		void shouldHaveFile() {
+			var fileGroup = mapper.createSingularFileGroup(incomingFile);
+
+			assertThat(fileGroup.getFiles()).containsExactly(incomingFile);
+		}
+	}
+
 }