public void GetAll_ThreeItemsInCollection_ShouldReturnAllThree()
{
_gigRepository.Add(_testGigOne);
_gigRepository.Add(_testGigTwo);
_gigRepository.Add(_testGigThree);
var retrivedGigs = _gigRepository.GetAll();
Assert.AreEqual(3, retrivedGigs.Count);
GigAssertor.New()
.Expected(_testGigOne)
.Actual(retrivedGigs.Find(g => g.Id == _testGigOne.Id))
.DoAssert();
GigAssertor.New()
.Expected(_testGigTwo)
.Actual(retrivedGigs.Find(g => g.Id == _testGigTwo.Id))
.DoAssert();
GigAssertor.New()
.Expected(_testGigThree)
.Actual(retrivedGigs.Find(g => g.Id == _testGigThree.Id))
.DoAssert();
}