public void TestChangeUnexistingPhoneMustReturnNumberOfChangedPhones()
{
var test = new PhonebookRepository();
test.AddPhone("Pesho", new[] { "08895624", "08895625", "08895626" });
int changedPhones = test.ChangePhone("08895629", "08895628");
Assert.AreEqual(0, changedPhones);
}
public void TestChangeSinglePhoneMustReturnNumberOfChangedPhones()
{
var test = new PhonebookRepository();
test.AddPhone("Pesho", new[] { "08895624", "08895625", "08895626" });
int changedPhones = test.ChangePhone("08895624", "08895628");
Assert.AreEqual(1, changedPhones);
// Number of phones should stay unchanged
Assert.AreEqual(3, test.KeyNumberValueEntryCount);
}