CountFriendsPairingTest.java

package com.thealgorithms.others;

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

import com.thealgorithms.dynamicprogramming.CountFriendsPairing;
import org.junit.jupiter.api.Test;

public class CountFriendsPairingTest {

    @Test
    void testForOneElement() {
        int[] a = {1, 2, 2};
        assertTrue(CountFriendsPairing.countFriendsPairing(3, a));
    }

    @Test
    void testForTwoElements() {
        int[] a = {1, 2, 2, 3};
        assertTrue(CountFriendsPairing.countFriendsPairing(4, a));
    }

    @Test
    void testForThreeElements() {
        int[] a = {1, 2, 2, 3, 3};
        assertTrue(CountFriendsPairing.countFriendsPairing(5, a));
    }

    @Test
    void testForFourElements() {
        int[] a = {1, 2, 2, 3, 3, 4};
        assertTrue(CountFriendsPairing.countFriendsPairing(6, a));
    }

    @Test
    void testForFiveElements() {
        int[] a = {1, 2, 2, 3, 3, 4, 4};
        assertTrue(CountFriendsPairing.countFriendsPairing(7, a));
    }

    @Test
    void testForSixElements() {
        int[] a = {1, 2, 2, 3, 3, 4, 4, 4};
        assertTrue(CountFriendsPairing.countFriendsPairing(8, a));
    }

    @Test
    void testForSevenElements() {
        int[] a = {1, 2, 2, 3, 3, 4, 4, 4, 5};
        assertTrue(CountFriendsPairing.countFriendsPairing(9, a));
    }

    @Test
    void testForEightElements() {
        int[] a = {1, 2, 2, 3, 3, 4, 4, 4, 5, 5};
        assertTrue(CountFriendsPairing.countFriendsPairing(10, a));
    }
}