SumOfDigitsTest.java

packagecom.thealgorithms.maths;

importjava.util.stream.Stream;
importorg.junit.jupiter.api.Assertions;
importorg.junit.jupiter.params.ParameterizedTest;
importorg.junit.jupiter.params.provider.Arguments;
importorg.junit.jupiter.params.provider.MethodSource;

classSumOfDigitsTest {
@ParameterizedTest
@MethodSource("testCases")
voidsumOfDigitsTest(finalintexpected, finalintinput) {
Assertions.assertEquals(expected, SumOfDigits.sumOfDigits(input));
 }

@ParameterizedTest
@MethodSource("testCases")
voidsumOfDigitsRecursionTest(finalintexpected, finalintinput) {
Assertions.assertEquals(expected, SumOfDigits.sumOfDigitsRecursion(input));
 }

@ParameterizedTest
@MethodSource("testCases")
voidsumOfDigitsFastTest(finalintexpected, finalintinput) {
Assertions.assertEquals(expected, SumOfDigits.sumOfDigitsFast(input));
 }

privatestaticStream<Arguments> testCases() {
returnStream.of(Arguments.of(0, 0), Arguments.of(1, 1), Arguments.of(15, 12345), Arguments.of(6, -123), Arguments.of(1, -100000), Arguments.of(8, 512));
 }
}