public void OrderSensitiveValueComparisonListTests_ValueComparer()
{
// Two identical lists with elements that are
// distinct objects, by reference.
OrderSensitiveValueComparisonList <ArtifactChange> listOne = CreateTestList(ArtifactChange.ValueComparer);
OrderSensitiveValueComparisonList <ArtifactChange> listTwo = CreateTestList(ArtifactChange.ValueComparer);
// Every list s/be equal to itself
listOne.Equals(listOne).Should().Be(true);
// As initialized, these objects are different, due
// to a unique GUID property on each list
listOne.Equals(listTwo).Should().Be(false);
// Make the two lists equivalent, by value
listTwo[2].SetProperty(DIFFERENTIATING_PROPERTY_NAME, listOne[2].GetProperty <Guid>(DIFFERENTIATING_PROPERTY_NAME));
listOne.Equals(listTwo).Should().Be(true);
ArtifactChange toSwap = listTwo[0];
listTwo[0] = listTwo[1];
listTwo[1] = toSwap;
// We have reordered two objects that are themselves identical.
// by value. The comparison should still succeed.
listOne.Equals(listTwo).Should().Be(true);
}
public void OrderSensitiveValueComparisonListTests_DefaultObjectComparer()
{
var equalityComparer = new DefaultObjectComparer <ArtifactChange>();
OrderSensitiveValueComparisonList <ArtifactChange> listOne = CreateTestList(equalityComparer);
// Populate the second list with references from the first.
var listTwo = new OrderSensitiveValueComparisonList <ArtifactChange>(equalityComparer);
for (int i = 0; i < listOne.Count; i++)
{
listTwo.Add(listOne[i]);
}
// Every list s/be equal to itself.
listOne.Equals(listOne).Should().Be(true);
// Two lists with shared objects, by reference, in the same
// order should be regarded as equivalent.
listOne.Equals(listTwo).Should().Be(true);
ArtifactChange toSwap = listTwo[0];
listTwo[0] = listTwo[1];
listTwo[1] = toSwap;
// We have reordered two objects that are themselves identical.
// The comparison should fail as the order of references changed.
listOne.Equals(listTwo).Should().Be(false);
}
