package ch9.large;

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

import static org.assertj.core.api.Assertions.assertThat;

public class ExtraChargeForElectronicsTest {

    @ParameterizedTest
    @CsvSource({"1", "2"})
    void chargeTheExtraPriceIfThereIsAnyElectronicInTheCart(int numberOfElectronics) {
        ShoppingCart cart = new ShoppingCart();
        for(int i = 0; i < numberOfElectronics; i++) {
            cart.add(new Item(ItemType.ELECTRONIC, "ANY ELECTRONIC", 1, 1));
        }

        double price = new ExtraChargeForElectronics().priceToAggregate(cart);
        assertThat(price).isEqualTo(7.50);
    }

    @Test
    void noExtraChargesIfNoElectronics() {
        ShoppingCart cart = new ShoppingCart();
        cart.add(new Item(ItemType.OTHER, "BOOK", 1, 1));
        cart.add(new Item(ItemType.OTHER, "CD", 1, 1));
        cart.add(new Item(ItemType.OTHER, "BABY TOY", 1, 1));

        double price = new ExtraChargeForElectronics().priceToAggregate(cart);
        assertThat(price).isEqualTo(0);
    }

    @Test
    void noItems() {
        ShoppingCart cart = new ShoppingCart();
        double price = new ExtraChargeForElectronics().priceToAggregate(cart);
        assertThat(price).isEqualTo(0);
    }
}