import org.junit.jupiter.api.Test; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertThrows;
@Test void testAdd() { assertEquals(15, calculator.add(10, 5), "Addition failed"); } maven minx work
@Test void testMultiply() { assertEquals(50, calculator.multiply(10, 5), "Multiplication failed"); } import org
package com.example;
@Test void testSubtract() { assertEquals(5, calculator.subtract(10, 5), "Subtraction failed"); } import static org.junit.jupiter.api.Assertions.assertEquals