Improved task 2095.

Author: javadev

src/test/java/g2001_2100/s2095_delete_the_middle_node_of_a_linked_list/SolutionTest.java

@@ -11,19 +11,24 @@
 class SolutionTest {
  @Test
  void deleteMiddle() {
- ListNode node1 = LinkedListUtils.createSinglyLinkedList(Arrays.asList(1, 3, 4, 7, 1, 2, 6));
- assertThat(new Solution().deleteMiddle(node1).toString(), equalTo("1, 3, 4, 1, 2, 6"));
+ ListNode node = LinkedListUtils.createSinglyLinkedList(Arrays.asList(1, 3, 4, 7, 1, 2, 6));
+ assertThat(new Solution().deleteMiddle(node).toString(), equalTo("1, 3, 4, 1, 2, 6"));
  }
 
  @Test
  void deleteMiddle2() {
- ListNode node2 = LinkedListUtils.createSinglyLinkedList(Arrays.asList(1, 2, 3, 4));
- assertThat(new Solution().deleteMiddle(node2).toString(), equalTo("1, 2, 4"));
+ ListNode node = LinkedListUtils.createSinglyLinkedList(Arrays.asList(1, 2, 3, 4));
+ assertThat(new Solution().deleteMiddle(node).toString(), equalTo("1, 2, 4"));
  }
 
  @Test
  void deleteMiddle3() {
- ListNode node3 = LinkedListUtils.createSinglyLinkedList(Arrays.asList(2, 1));
- assertThat(new Solution().deleteMiddle(node3).toString(), equalTo("2"));
+ ListNode node = LinkedListUtils.createSinglyLinkedList(Arrays.asList(2, 1));
+ assertThat(new Solution().deleteMiddle(node).toString(), equalTo("2"));
+ }
+
+ @Test
+ void deleteMiddle4() {
+ assertThat(new Solution().deleteMiddle(new ListNode()), equalTo(null));
  }
 }