from mathieu import fonctionDePaul as get_price
BOOK1 = 1
BOOK2 = 2
BOOK3 = 3
BOOK4 = 4
BOOK5 = 5


def test_get_price_empty_basket():
    assert get_price([]) is 0


def test_get_price_simple_book():
    assert get_price([BOOK1]) == 8


def test_get_price_book_for_discount1():
    assert get_price([BOOK1, BOOK2]) == (16 * 0.95)


def test_get_price_book_for_discount2():
    assert get_price([BOOK1, BOOK2, BOOK3]) == (24 * 0.90)


def test_get_price_book_for_discount3():
    assert get_price([BOOK1, BOOK2, BOOK3, BOOK4]) == (32 * 0.80)


def test_get_price_book_for_discount4():
    assert get_price([BOOK1, BOOK2, BOOK3, BOOK4, BOOK5]) == (40 * 0.75)


def test_get_price_book_for_mixed_discount1():
    assert get_price([BOOK1, BOOK1, BOOK2]) == (16 * 0.95 + 8)


def test_get_price_book_for_mixed_discount2():
    assert get_price([BOOK1, BOOK1, BOOK1, BOOK2, BOOK2]) == 38.4


def test_get_price_no_mixed():
    assert get_price([BOOK1, BOOK1, BOOK1]) == 24


def test_get_price_book_for_example():
    assert get_price([BOOK1, BOOK1, BOOK2, BOOK2, BOOK3, BOOK3, BOOK4, BOOK5]) == 51.6


def test_paul_is_teube():
    assert get_price([1 for i in range(12)]) == 8 * 12