#include "s0002_add_two_numbers.hpp"

#include <gtest/gtest.h>

TEST(Problem2, Case1) {
  ListNode *l1 =
    new ListNode(2,
      new ListNode(4,
        new ListNode(3)));
  ListNode *l2 =
    new ListNode(5,
        new ListNode(6,
          new ListNode(4)));
  S0002 solution;
  ListNode *l = solution.addTwoNumbers(l1, l2);
  EXPECT_EQ(l->val, 7);
  EXPECT_EQ(l->next->val, 0);
  EXPECT_EQ(l->next->next->val, 8);
}

TEST(Problem2, Case2) {
  ListNode *l1 = new ListNode(0);
  ListNode *l2 = new ListNode(0);
  S0002 solution;
  ListNode *l = solution.addTwoNumbers(l1, l2);
  EXPECT_EQ(l->val, 0);
}

TEST(Problem2, Case3) {
  ListNode *l1 =
    new ListNode(9,
        new ListNode(9,
          new ListNode(9,
            new ListNode(9,
              new ListNode(9,
                new ListNode(9,
                  new ListNode(9)))))));
  ListNode *l2 =
    new ListNode(9,
        new ListNode(9,
          new ListNode(9,
            new ListNode(9))));
  S0002 solution;
  ListNode *l = solution.addTwoNumbers(l1, l2);
  EXPECT_EQ(l->val, 8);
  EXPECT_EQ(l->next->val, 9);
  EXPECT_EQ(l->next->next->val, 9);
  EXPECT_EQ(l->next->next->next->val, 9);
  EXPECT_EQ(l->next->next->next->next->val, 0);
  EXPECT_EQ(l->next->next->next->next->next->val, 0);
  EXPECT_EQ(l->next->next->next->next->next->next->val, 0);
  EXPECT_EQ(l->next->next->next->next->next->next->next->val, 1);
}