DictionaryContainsValueConstraint
DictionaryContainsValueConstraint is used to test whether a dictionary
contains an expected object as a value.
Gets the expected object
Construct a DictionaryContainsValueConstraint
public DictionaryContainsValueConstraint Using<TActualValueElement, TExpected>(Func<TActualValueElement, TExpected, bool> comparison)
Flag the constraint to use the supplied predicate function