DudeneyNumberTest.java

packagecom.thealgorithms.maths;

importstaticorg.junit.jupiter.api.Assertions.assertFalse;
importstaticorg.junit.jupiter.api.Assertions.assertThrows;
importstaticorg.junit.jupiter.api.Assertions.assertTrue;

importorg.junit.jupiter.params.ParameterizedTest;
importorg.junit.jupiter.params.provider.CsvSource;

classDudeneyNumberTest {
@ParameterizedTest
@CsvSource({"1", "512", "4913", "5832", "17576", "19683"})
voidpositiveDudeneyBase10Power3(finalintn) {
assertTrue(DudeneyNumber.isDudeney(n));
 }

@ParameterizedTest
@CsvSource({"2", "19", "21", "125", "27", "343", "729", "19682", "19684"})
voidnegativeDudeneyBase10Power3(finalintn) {
assertFalse(DudeneyNumber.isDudeney(n));
 }

@ParameterizedTest
@CsvSource({"0", "-1"})
voidthrowsInputLessThanOne(finalintn) {
assertThrows(IllegalArgumentException.class, () -> DudeneyNumber.isDudeney(n));
 }
}