public void ContactModificationTest()
{
const int contactNumberToModify = 1;
ContactData data = ContactFactory.GetContactDataWithUniqueValues();
app.ContactHelper.PrepareContactWithIndex(contactNumberToModify);
List <ContactData> contactListPrev = app.ContactHelper.GetContactList();
data.Id = app.ContactHelper.GetContactInfoFromList(contactNumberToModify).Id;
app.ContactHelper.ModifyContactNumber(contactNumberToModify, data);
List <ContactData> contactListAfter = app.ContactHelper.GetContactList();
List <ContactData> contactListExpected =
app.ContactHelper.ModifyContactNumberInList(contactListPrev, contactNumberToModify, data);
app.ContactHelper.CormpareTwoContactLists(
app.HelperBase.Sort(contactListAfter),
app.HelperBase.Sort(contactListExpected))
.CheckTestResult();
}