@Test public void testNullList() { String result = converter.convert(null); Assert.assertNull("school year should be null", result); }
public String convert(Integer schoolYear) { if (schoolYear == null) { return null; } Integer priorSchoolYear = schoolYear - 1; return priorSchoolYear.toString() + "-" + schoolYear.toString(); }
SchoolYearConverter { public String convert(Integer schoolYear) { if (schoolYear == null) { return null; } Integer priorSchoolYear = schoolYear - 1; return priorSchoolYear.toString() + "-" + schoolYear.toString(); } }
SchoolYearConverter { public String convert(Integer schoolYear) { if (schoolYear == null) { return null; } Integer priorSchoolYear = schoolYear - 1; return priorSchoolYear.toString() + "-" + schoolYear.toString(); }  }
SchoolYearConverter { public String convert(Integer schoolYear) { if (schoolYear == null) { return null; } Integer priorSchoolYear = schoolYear - 1; return priorSchoolYear.toString() + "-" + schoolYear.toString(); }  String convert(Integer schoolYear); }
SchoolYearConverter { public String convert(Integer schoolYear) { if (schoolYear == null) { return null; } Integer priorSchoolYear = schoolYear - 1; return priorSchoolYear.toString() + "-" + schoolYear.toString(); }  String convert(Integer schoolYear);  }