MissingNumberTest.java

package com.examplehub.leetcode.easy;

import static org.junit.jupiter.api.Assertions.*;

import org.junit.jupiter.api.Test;

class MissingNumberTest {
  @Test
  void testSolution1() {
    assertEquals(2, MissingNumber.solution1(3, 0, 1));
    assertEquals(2, MissingNumber.solution1(0, 1));
    assertEquals(8, MissingNumber.solution1(9, 6, 4, 2, 3, 5, 7, 0, 1));
  }

  @Test
  void testSolution2() {
    assertEquals(2, MissingNumber.solution2(3, 0, 1));
    assertEquals(2, MissingNumber.solution2(0, 1));
    assertEquals(8, MissingNumber.solution2(9, 6, 4, 2, 3, 5, 7, 0, 1));
  }

  @Test
  void testSolution3() {
    assertEquals(2, MissingNumber.solution3(3, 0, 1));
    assertEquals(2, MissingNumber.solution3(0, 1));
    assertEquals(8, MissingNumber.solution3(9, 6, 4, 2, 3, 5, 7, 0, 1));
  }

  @Test
  void testSolution4() {
    assertEquals(2, MissingNumber.solution4(3, 0, 1));
    assertEquals(2, MissingNumber.solution4(0, 1));
    assertEquals(8, MissingNumber.solution4(9, 6, 4, 2, 3, 5, 7, 0, 1));
  }
}