test.java

package app;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import static org.junit.jupiter.api.Assertions.*;

class CalculatriceTest {

    Calculatrice calc = new Calculatrice();

    @Test void testAddition() {
        assertEquals(5, calc.addition(2, 3));
    }

    @Test void testSoustraction() {
        assertEquals(1, calc.soustraction(3, 2));
    }

    @Test void testMultiplication() {
        assertEquals(6, calc.multiplication(2, 3));
    }

    @Test void testDivision() {
        assertEquals(2, calc.division(6, 3));
    }

    @Test void testDivisionParZero() {
        Exception exception = assertThrows(IllegalArgumentException.class, () -> {
            calc.division(5, 0);
        });
        assertEquals("Division par zéro", exception.getMessage());
    }

    @Test void testPuissance() {
        assertEquals(8, calc.puissance(2, 3));
        assertEquals(1, calc.puissance(5, 0));
    }

    @Test void testPuissanceNegative() {
        Exception exception = assertThrows(IllegalArgumentException.class, () -> {
            calc.puissance(2, -1);
        });
        assertEquals("Exposant négatif non supporté", exception.getMessage());
    }

    @ParameterizedTest
    @CsvSource({
        "2, 3, 5",
        "10, 15, 25",
        "-2, 4, 2"
    })
    void testAdditionParametree(int a, int b, int resultatAttendu) {
        assertEquals(resultatAttendu, calc.addition(a, b));
    }
}