### Question:
ParsingHybridProperty implements HybridProperty<ModelT> { @Override public final ModelT get() { return myValue; } ParsingHybridProperty(
      Parser<? extends ModelT> parser,
      PrettyPrinter<? super ModelT> printer,
      ObservableList<Token> tokens, ParsingContextFactory parsingContextFactory); @Override final ModelT get(); @Override Registration addHandler(EventHandler<? super PropertyChangeEvent<ModelT>> handler); @Override ObservableList<Token> getTokens(); @Override String getPropExpr();  }### Answer:
@Test public void parserError() { mySourceTokens.add(Tokens.PLUS); assertNull(myProp.get()); }