FibonacciNumberGoldenRationTest.java

packagecom.thealgorithms.maths;

importstaticorg.junit.jupiter.api.Assertions.assertEquals;
importstaticorg.junit.jupiter.api.Assertions.assertThrows;

importjava.math.BigInteger;
importorg.junit.jupiter.api.Test;

publicclassFibonacciNumberGoldenRationTest {

@Test
publicvoidreturnsCorrectValues() {
for (intn = 0; n <= FibonacciNumberGoldenRation.MAX_ARG; ++n) {
finalvaractual = FibonacciNumberGoldenRation.compute(n);
finalvarexpected = FibonacciLoop.compute(n);
assertEquals(expected, BigInteger.valueOf(actual));
 }
 }

@Test
publicvoidthrowsIllegalArgumentExceptionForNegativeInput() {
assertThrows(IllegalArgumentException.class, () -> { FibonacciNumberGoldenRation.compute(-1); });
 }

@Test
publicvoidthrowsIllegalArgumentExceptionForLargeInput() {
assertThrows(IllegalArgumentException.class, () -> { FibonacciNumberGoldenRation.compute(FibonacciNumberGoldenRation.MAX_ARG + 1); });
 }
}