@Test public void testNullObject() { String result = converter.convert(null); Assert.assertNull("Race list should be null", result); }
public String convert(String gender) { return GENDER_TYPE_MAP.get(gender); }
GenderConverter { public String convert(String gender) { return GENDER_TYPE_MAP.get(gender); } }
GenderConverter { public String convert(String gender) { return GENDER_TYPE_MAP.get(gender); }  }
GenderConverter { public String convert(String gender) { return GENDER_TYPE_MAP.get(gender); }  String convert(String gender); }
GenderConverter { public String convert(String gender) { return GENDER_TYPE_MAP.get(gender); }  String convert(String gender);  }