PropertyPreservingFunction extends AbstractFunction.NonCompiledInvoker { protected ValueProperties getResultProperties() { return _resultProperties; }  @Override void setUniqueId(final String identifier);  }
@Test public void SingleNonMatchingProperty() { final MockPropertyPreservingFunction func = getFunction(); final List<ValueSpecification> specses = getSpecs(ValueProperties.builder().with("A", "V").get(), ValueProperties.builder().with("A", "X").get()); assertNull(func.getResultProperties(specses)); }