### Question:
ReferenceField implements FieldType<String> { public String getScope() { return scope; } ReferenceField();  ReferenceField(final String scope); @Override Types getType(); String getScope(); boolean isScoped(); @Override String getDefaultValue(); @Override boolean hasDefaultValue(); @Override String convert(Object objValue); @Override JSONObject toJson();  }### Answer:
@Test public void testGetScope() { System.out.println("getScope"); assertNull(new ReferenceField().getScope()); assertEquals("table", new ReferenceField("table").getScope()); }