@Test
public void doubleValueAsContentWith0() throws ParserException {

    final RootNode root = parser.parse("eq(username,0.7)");
    assertThat(root).isNotNull();
    assertThat(root.getChildren().size()).isEqualTo(1);
    final SingleComparisonNode comparison = (SingleComparisonNode) root.getChildren().get(0);
    assertThat(comparison.getComparisonValue().getClass()).isEqualTo(Double.class);
    assertThat(comparison.getComparisonValue()).isEqualTo(0.7);
}