private AProject makeProject() throws ProjectException {
   AProject project = new AProject(new MockFolder(PROJECT_NAME));
   AProjectFolder folder1 = project.addFolder(FOLDER1);
   folder1.addResource(FILE1_1, new ByteArrayInputStream(new byte[10]));
   folder1.addResource(FILE1_2, new ByteArrayInputStream(new byte[20]));
   project.addFolder(FOLDER2);
   return project;
 }