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Add unit tests for PalindromeNumber (#4227)

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Albina Gimaletdinova
2023-07-01 21:29:10 +03:00
committed by GitHub
parent 8862a4dea5
commit 4b45ac7e71
3 changed files with 32 additions and 8 deletions
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src/test/java/com/thealgorithms/maths/PalindromeNumberTest.java Normal file
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package com.thealgorithms.maths;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
/**
* @author Albina Gimaletdinova on 01/07/2023
*/
public class PalindromeNumberTest {
@Test
public void testNumbersArePalindromes() {
Assertions.assertTrue(PalindromeNumber.isPalindrome(0));
Assertions.assertTrue(PalindromeNumber.isPalindrome(1));
Assertions.assertTrue(PalindromeNumber.isPalindrome(2332));
Assertions.assertTrue(PalindromeNumber.isPalindrome(12321));
}
@Test
public void testNumbersAreNotPalindromes() {
Assertions.assertFalse(PalindromeNumber.isPalindrome(12));
Assertions.assertFalse(PalindromeNumber.isPalindrome(990));
Assertions.assertFalse(PalindromeNumber.isPalindrome(1234));
}
@Test
public void testIfNegativeInputThenExceptionExpected() {
IllegalArgumentException exception = Assertions.assertThrows(IllegalArgumentException.class, () -> PalindromeNumber.isPalindrome(-1));
Assertions.assertEquals(exception.getMessage(), "Input parameter must not be negative!");
}
}