long pdfCount = addedQueries.stream().filter(q -> q.equals("filetype:pdf")).count();
        assertEquals(1, pdfCount);
    }

    // Test init() with empty file types
    public void test_init_withEmptyFileTypes() {
        testFileTypeHelper.setTypes(new String[] {});

        facetQueryView.addQuery("label1", "filetype:html");

        facetQueryView.init();