### Question:
UpperCamelCaseNameMapper implements NameMapper { @Override public String mapMemberName(String rawName) { if (rawName == null || rawName.length() == 0) return rawName; return rawName.substring(0,1).toUpperCase() + ( rawName.length() > 1 ? rawName.substring(1): "" ); }  @Override String mapMemberName(String rawName);  }### Answer:
@Test @DisplayName("Checking UpperCaseMapping") void checkUpperCaseMapping() { standardTest.forEach( (x, y) -> assertEquals(testee.mapMemberName(x), y, "Expected '" + y + "' got '" + testee.mapMemberName(x)) ); }
@Test @DisplayName("Checking upperCasemapping with null") void checkJacksonMappingWithNull() { assertNull(testee.mapMemberName(null)); }