public void ReverseList_head輸入正常節點_應回傳反轉後節點()
{
// arrange
var head = new ListNode
{
Data = 1,
Next = new ListNode
{
Data = 2,
Next = new ListNode
{
Data = 3,
Next = new ListNode
{
Data = 4,
Next = new ListNode
{
Data = 5
}
}
}
}
};
var expect = new ListNode
{
Data = 5,
Next = new ListNode
{
Data = 4,
Next = new ListNode
{
Data = 3,
Next = new ListNode
{
Data = 2,
Next = new ListNode
{
Data = 1
}
}
}
}
};
var sut = new Q0206_ReverseLinkedList();
// act
var actual = sut.ReverseList(head);
// assert
actual.Should().NotBeNull();
actual.Should().BeEquivalentTo(expect);
}
public void ReverseList_head輸入null_應回傳null()
{
// arrange
ListNode head = null;
var sut = new Q0206_ReverseLinkedList();
// act
var actual = sut.ReverseList(head);
// assert
actual.Should().BeNull();
}
public void ReverseList_head輸入單一節點_應回傳原本節點()
{
// arrange
var head = new ListNode
{
Data = 3
};
var expect = new ListNode
{
Data = 3
};
var sut = new Q0206_ReverseLinkedList();
// act
var actual = sut.ReverseList(head);
// assert
actual.Should().NotBeNull();
actual.Should().BeEquivalentTo(expect);
}
