### Question:
CharacterFieldImpl implements Field { @Override public String toString() { return String.format("%s [C%d]", getName(), getDataLength()); } CharacterFieldImpl(final String fieldName, final long dataLength); @Override long getDataLength(); @Override String getDeclaration(); @Override int getListSize(); @Override String getName(); @Override Structure getStructure(); @Override DataType getType(); @Override String toString();  }### Answer:
@Test public void testToString() { assertThat(field.toString()).isEqualTo(String.format("%s [C%d]", field.getName(), field.getDataLength())); }