test method for net.sf.marineapi.nmea.parser.vhwparser #setheading double . concode_field_sep VHWParser vhw concode_elem_sep String EXAMPLE concode_field_sep void testGetSpeedKnots concode_elem_sep void testSetMagneticHeading concode_elem_sep void testGetMagneticHeading concode_elem_sep void testConstructorTalkerId concode_elem_sep void testIsTrue concode_elem_sep void testSetSpeedKilometres concode_elem_sep void setUp concode_elem_sep void testSetSpeedKnots concode_elem_sep void testGetHeading concode_elem_sep void testGetSpeedKilometres concode_elem_sep void testConstructorString