public void Remove_RemoveExistNodeWithNullValueFromListWithOneNode_TrueReturned()
{
// Arrange
NodeWithLink <EquatableMock> node0 = new NodeWithLink <EquatableMock>(null);
LoopSingleLinkList <EquatableMock> list = new LoopSingleLinkList <EquatableMock>(node0);
EquatableMock removeValue = null;
// Act
bool isDeleted = list.Remove(removeValue);
// Assert
Assert.True(isDeleted);
Assert.Null(list.First);
Assert.Null(list.Last);
}
public void Contains_ContainsExistNodeWithNullValue_TrueReturned()
{
// Arrange
NodeWithLink <EquatableMock>[] sequence = CreateSequenceOfFiveNodes();
EquatableMock existValue = null;
LoopSingleLinkList <EquatableMock> list = new LoopSingleLinkList <EquatableMock>(sequence);
list.AddLast(existValue);
// Act
bool isFound = list.Contains(existValue);
// Assert
Assert.True(isFound);
}
public void Find_FindExistNodeWithNullValue_NotNullNodeReturned()
{
// Arrange
NodeWithLink <EquatableMock>[] sequence = CreateSequenceOfFiveNodes();
EquatableMock existValue = null;
LoopSingleLinkList <EquatableMock> list = new LoopSingleLinkList <EquatableMock>(sequence);
list.AddLast(existValue);
// Act
NodeWithLink <EquatableMock> found = list.Find(existValue);
// Assert
Assert.NotNull(found);
}
public void Remove_RemoveExistMiddleNodeWithNullValueFromList_TrueReturned()
{
// Arrange
NodeWithLink <EquatableMock>[] sequence = CreateSequenceOfFiveNodes();
NodeWithLink <EquatableMock> node1 = sequence[0];
NodeWithLink <EquatableMock> node3 = sequence[2];
NodeWithLink <EquatableMock> node2 = new NodeWithLink <EquatableMock>(null);
sequence[1] = node2;
LoopSingleLinkList <EquatableMock> list = new LoopSingleLinkList <EquatableMock>(sequence);
EquatableMock removeValue = node2.Value;
// Act
bool isDeleted = list.Remove(removeValue);
// Assert
Assert.True(isDeleted);
Assert.Same(node3, node1?.Next);
}