### Question:
ShortConverter implements AtlasConverter<Short> { @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.STRING) public String toString(Short value) { return value != null ? String.valueOf(value) : null; }  @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.DECIMAL) BigDecimal toBigDecimal(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.BIG_INTEGER) BigInteger toBigInteger(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.BOOLEAN, concerns = AtlasConversionConcern.CONVENTION) Boolean toBoolean(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.BYTE, concerns = AtlasConversionConcern.RANGE) Byte toByte(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.CHAR, concerns = { AtlasConversionConcern.RANGE, AtlasConversionConcern.CONVENTION }) Character toCharacter(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.DATE_TIME) Date toDate(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.DOUBLE) Double toDouble(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.FLOAT) Float toFloat(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.INTEGER) Integer toInteger(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.DATE) LocalDate toLocalDate(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.TIME) LocalTime toLocalTime(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.DATE_TIME) LocalDateTime toLocalDateTime(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.LONG) Long toLong(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.NUMBER) Number toNumber(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.SHORT) Short toShort(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.STRING) String toString(Short value); @AtlasConversionInfo(sourceType = FieldType.SHORT, targetType = FieldType.DATE_TIME_TZ) ZonedDateTime toZonedDateTime(Short value);  }### Answer:
@Test public void convertToString() { Short l = 0; String s = converter.toString(l); assertNotNull(s); assertTrue("0".equals(s)); }
@Test public void convertToStringNull() { Short l = null; String s = converter.toString(l); assertNull(s); }