Style: Insert line breaks

CityDoctorParent/CityDoctorModel/src/test/java/de/hft/stuttgart/citydoctor2/zip/ZipTest.java

@@ -27,6 +27,7 @@ public class ZipTest {
         CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/mock_archive.zip");
         assertNotNull(cgmlArch);
         cgmlArch.mountArchive(config);
+
         checkMockArchive(cgmlArch);
     }
 
@@ -46,15 +47,18 @@ public class ZipTest {
         CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/mock_archive.zip");
         assertNotNull(cgmlArch);
         cgmlArch.mountArchive(config);
+
         Path tmpDir = null;
         try {
             tmpDir = Files.createTempDirectory("testTmp");
             tmpDir.toFile().deleteOnExit();
             String expPath = tmpDir.toString() + "/export.zip";
+
             cgmlArch.exportToZipFile(expPath);
             CityGmlZipArchive cgmlExport = CityGmlZipArchive.register(expPath);
             assertNotNull(cgmlExport);
             cgmlExport.mountArchive(config);
+
             checkMockArchive(cgmlExport);
         } finally {
             if (tmpDir != null) {
@@ -86,6 +90,7 @@ public class ZipTest {
         CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/validate.zip");
         assertNotNull(cgmlArch);
         cgmlArch.mountArchive(valConfig);
+
         assertNull(cgmlArch.getEntry("valCorrect.gml").getErrorType());
         assertEquals(ZipEntryErrorType.INVALID_CITY_GML_FILE, cgmlArch.getEntry("valFaulty.gml").getErrorType());
     }
@@ -95,6 +100,7 @@ public class ZipTest {
         CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/implicit.zip");
         assertNotNull(cgmlArch);
         cgmlArch.mountArchive(config);
+
         CityDoctorModel mainModel = cgmlArch.getEntry("Main_model.gml").getModel();
         assertEquals(18, mainModel.getGenericCityObjects().size());
     }