GoldbachConjectureTest.java

packagecom.thealgorithms.maths;

importstaticcom.thealgorithms.maths.GoldbachConjecture.getPrimeSum;
importstaticorg.junit.jupiter.api.Assertions.assertEquals;
importstaticorg.junit.jupiter.api.Assertions.assertThrows;

importorg.junit.jupiter.api.Test;

publicclassGoldbachConjectureTest {
@Test
voidtestValidEvenNumbers() {
assertEquals(newGoldbachConjecture.Result(3, 7), getPrimeSum(10)); // 10 = 3 + 7
assertEquals(newGoldbachConjecture.Result(5, 7), getPrimeSum(12)); // 12 = 5 + 7
assertEquals(newGoldbachConjecture.Result(3, 11), getPrimeSum(14)); // 14 = 3 + 11
assertEquals(newGoldbachConjecture.Result(5, 13), getPrimeSum(18)); // 18 = 5 + 13
 }
@Test
voidtestInvalidOddNumbers() {
assertThrows(IllegalArgumentException.class, () -> getPrimeSum(7));
assertThrows(IllegalArgumentException.class, () -> getPrimeSum(15));
 }
@Test
voidtestLesserThanTwo() {
assertThrows(IllegalArgumentException.class, () -> getPrimeSum(1));
assertThrows(IllegalArgumentException.class, () -> getPrimeSum(2));
assertThrows(IllegalArgumentException.class, () -> getPrimeSum(-5));
assertThrows(IllegalArgumentException.class, () -> getPrimeSum(-26));
 }
}