@Test
    void testSimplePositive() {
        PhraseItem root = new PhraseItem();

        root.addItem(new WordItem("abc"));
        assertEquals("abc", transformQuery(root));
    }
Tests guards against in single item phrases.

@author Steinar Knutsen
container-search/src/test/java/com/yahoo/prelude/query/parser/test/WashPhrasesTestCase.java