test method for net.sf.marineapi.nmea.parser.hdtparser #setheading double . concode_field_sep HDTSentence hdt concode_elem_sep String EXAMPLE concode_field_sep void testSetHeadingTooHigh concode_elem_sep void testIsTrue concode_elem_sep void setUp concode_elem_sep void testGetHeading concode_elem_sep void testSetNegativeHeading concode_elem_sep void testConstructor