code: def test_whole_field_predicate(self):
      assert fn.wholeFieldPredicate("donald") == {"donald"}
      assert fn.wholeFieldPredicate("go-of,y  ") == {"go-of,y  "}
      assert fn.wholeFieldPredicate(" cip ciop ") == {" cip ciop "}
  
imports: import unittest
  from dedupe import predicate_functions
  from dedupe.cpredicates import ngrams
label_desc: Use image node_id 1 for calling the TestPredicateFunctions obj's underlying member method code with example usage: obj.test_whole_field_predicate() without return types