void () { myFixture.copyDirectoryToProject(getTestName(true), getTestName(true)); List<PropertiesFile> customBundleFiles = new ArrayList<>(2); PropertiesReferenceManager.getInstance(getProject()).processAllPropertiesFiles((baseName, propertiesFile) -> { customBundleFiles.add(propertiesFile); return true; }); ResourceBundleManager.getInstance(getProject()).combineToResourceBundle(customBundleFiles, "some"); final AbstractProjectViewPane pane = setupPane(true); String structure = """ -Project -PsiDirectory: src -PsiDirectory: customBundle -PsiDirectory: dev some.dev.properties (custom RB: some) -PsiDirectory: prod some.prod.properties (custom RB: some) External Libraries """; PlatformTestUtil.assertTreeEqual(pane.getTree(), structure); }