@Test
public void testComparisonEqualsWithStringSingleQuoteValue() throws ParserException {

    final RootNode root = parser.parse("eq(username,'te\\'st')");
    assertThat(root).isNotNull();
    assertThat(root.getChildren().size()).isEqualTo(1);
    final SingleComparisonNode comparison = (SingleComparisonNode) root.getChildren().get(0);
    assertThat(comparison.getComparisonValue().getClass()).isEqualTo(String.class);
    assertThat(comparison.getComparisonValue()).isEqualTo("te'st");
}