public void has_prefixed_value_positive()
{
dict3.Add("SiteName", "a");
aggregate.HasAnyValuePrefixedWith("Site").ShouldBeTrue();
dict2.Add("AddressName", "b");
aggregate.HasAnyValuePrefixedWith("Address").ShouldBeTrue();
dict1.Add("CaseName", "c");
aggregate.HasAnyValuePrefixedWith("Case").ShouldBeTrue();
}