Java/src/test/java/com/thealgorithms/dynamicprogramming/NewManShanksPrimeTest.java

package com.thealgorithms.dynamicprogramming;

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

import org.junit.jupiter.api.Test;

/**
 * Unit tests for the NewManShanksPrime class.
 * This test class verifies the correctness of the nthManShanksPrime method
 * for various input cases.
 */
class NewManShanksPrimeTest {

    /**
     * Test case for the 1st New Man Shanks prime.
     * The expected answer is 1.
     */
    @Test
    void testNthManShanksPrime1() {
        int n = 1;
        int expectedAnswer = 1;
        assertTrue(NewManShanksPrime.nthManShanksPrime(n, expectedAnswer), "The 1st New Man Shanks prime should be 1.");
    }

    /**
     * Test case for the 2nd New Man Shanks prime.
     * The expected answer is 3.
     */
    @Test
    void testNthManShanksPrime2() {
        int n = 2;
        int expectedAnswer = 3;
        assertTrue(NewManShanksPrime.nthManShanksPrime(n, expectedAnswer), "The 2nd New Man Shanks prime should be 3.");
    }

    /**
     * Test case for the 3rd New Man Shanks prime.
     * The expected answer is 7.
     */
    @Test
    void testNthManShanksPrime3() {
        int n = 3;
        int expectedAnswer = 7;
        assertTrue(NewManShanksPrime.nthManShanksPrime(n, expectedAnswer), "The 3rd New Man Shanks prime should be 7.");
    }

    /**
     * Test case for the 4th New Man Shanks prime.
     * The expected answer is 17.
     */
    @Test
    void testNthManShanksPrime4() {
        int n = 4;
        int expectedAnswer = 17;
        assertTrue(NewManShanksPrime.nthManShanksPrime(n, expectedAnswer), "The 4th New Man Shanks prime should be 17.");
    }

    /**
     * Test case for the 5th New Man Shanks prime.
     * The expected answer is 41.
     */
    @Test
    void testNthManShanksPrime5() {
        int n = 5;
        int expectedAnswer = 41;
        assertTrue(NewManShanksPrime.nthManShanksPrime(n, expectedAnswer), "The 5th New Man Shanks prime should be 41.");
    }

    /**
     * Test case with an incorrect expected answer.
     * For n = 2, the expected answer is 3.
     */
    @Test
    void testNthManShanksPrimeIncorrectAnswer() {
        int n = 2;
        int expectedAnswer = 4; // Incorrect expected value
        assertFalse(NewManShanksPrime.nthManShanksPrime(n, expectedAnswer), "The 2nd New Man Shanks prime should not be 4.");
    }
}