Java/src/test/java/com/examplehub/maths/FactorialTest.java at master · alimogh/Java · GitHub

23 lines (18 loc) · 555 Bytes

package com.examplehub.maths;

import static org.junit.jupiter.api.Assertions.*;

import org.junit.jupiter.api.Test;

class FactorialTest {

@Test

void testFactorial() {

try {

long fact = Factorial.factorial(-1);

fail(); /* will not happen */

} catch (ArithmeticException e) {

assertTrue(true); /* will happen */

}

int[][] testNumbers = {{0, 1}, {1, 1}, {2, 2}, {3, 6}, {4, 24}, {5, 120}};

for (int[] testNumber : testNumbers) {

assertEquals(Factorial.factorial(testNumber[0]), testNumber[1]);

}

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