### Question:
DescriptionPropertyConverter { public static String dmnFromWB(final Description description) { if (description == null) { return null; } else if (StringUtils.isEmpty(description.getValue())) { return null; } else { return description.getValue(); } }  static Description wbFromDMN(final String description); static String dmnFromWB(final Description description);  }### Answer:
@Test public void testDMNFromWBWithNull() { assertNull(DescriptionPropertyConverter.dmnFromWB(null)); }
@Test public void testDMNFromWBWithNullValue() { assertNull(DescriptionPropertyConverter.dmnFromWB(new Description(null))); }
@Test public void testDMNFromWBWithEmptyValue() { assertNull(DescriptionPropertyConverter.dmnFromWB(new Description(""))); }
@Test public void testDMNFromWBWithNonNullValue() { assertEquals(DESCRIPTION, DescriptionPropertyConverter.dmnFromWB(new Description(DESCRIPTION))); }