### Question:
ExpressionParserFunctions { private static DateTime nowInZone(DateTimeZone zone) { return DateTime.now(zone); } private  ExpressionParserFunctions(); static DateTime nowInZone(String zone); static DateTime nowUtc(); static DateTime nowEuropeLondon(); static DateTime nowAmericaLosAngeles(); static String zeroPadLeft(int value, int width); static String zeroPadLeft(String value, int width);  }### Answer:
@Test public void nowInZone() { DateTime now = ExpressionParserFunctions.nowInZone("UTC"); assertThat(now.getZone(), is(DateTimeZone.UTC)); }