Fix checkstyle.

Author: meistermeier

src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenTest.java

@@ -170,7 +170,8 @@ void generate_CustomModelAndApiPackages() throws Exception {
 
         File[] modelFiles = Objects.requireNonNull(new File(outputJavaClassesDir, "model").listFiles());
         List<String> generatedModelFileNames = Arrays.stream(modelFiles).map(File::getName).sorted().collect(toList());
-        assertEquals(Arrays.asList("Event.java", "EventProperty.java", "EventStatus.java", "User.java"), generatedModelFileNames);
+        assertEquals(Arrays.asList("Event.java", "EventProperty.java", "EventStatus.java", "User.java"),
+                generatedModelFileNames);
 
         for (File modelFile : modelFiles) {
             assertThat(Utils.getFileContent(modelFile.getPath()),
@@ -296,7 +297,8 @@ void generate_OnlyModel() throws Exception {
 
         File[] files = Objects.requireNonNull(outputJavaClassesDir.listFiles());
         List<String> generatedFileNames = Arrays.stream(files).map(File::getName).sorted().collect(toList());
-        assertEquals(Arrays.asList("Event.java", "EventProperty.java", "EventStatus.java", "User.java"), generatedFileNames);
+        assertEquals(Arrays.asList("Event.java", "EventProperty.java", "EventStatus.java", "User.java"),
+                generatedFileNames);
     }
 
     @Test