def test_group_books_to_set_1book(self):
"""
第一集一本，組成：一本書
"""
# arrange
books = {
POTTER_VOL_1: 1,
}
# act
booksets = BookSet.group_books_to_set(books)
# assert
expected = [
BookSet({POTTER_VOL_1}),
]
self.assertListEqual(booksets, expected)
def test_group_books_to_set_2books(self):
"""
一二集各一本，組成：兩本套書
"""
# arrange
books = {
POTTER_VOL_1: 1,
POTTER_VOL_2: 1,
}
# act
booksets = BookSet.group_books_to_set(books)
# assert
expected = [
BookSet({POTTER_VOL_1, POTTER_VOL_2}),
]
self.assertListEqual(booksets, expected)
def test_group_books_to_set_3books_and_2books(self):
"""
第一集一本，第二三集各兩本，組成：三本套書＋兩本套書
"""
# arrange
books = {
POTTER_VOL_1: 1,
POTTER_VOL_2: 2,
POTTER_VOL_3: 2,
}
# act
booksets = BookSet.group_books_to_set(books)
# assert
expected = [
BookSet({POTTER_VOL_1, POTTER_VOL_2, POTTER_VOL_3}),
BookSet({POTTER_VOL_2, POTTER_VOL_3}),
]
self.assertListEqual(booksets, expected)
def test_group_books_to_set_3books_and_1book(self):
"""
一二集各一本，第三集兩本，組成：三本套書＋一本書
"""
# arrange
books = {
POTTER_VOL_1: 1,
POTTER_VOL_2: 1,
POTTER_VOL_3: 2,
}
# act
booksets = BookSet.group_books_to_set(books)
# assert
expected = [
BookSet({POTTER_VOL_1, POTTER_VOL_2, POTTER_VOL_3}),
BookSet({POTTER_VOL_3}),
]
self.assertListEqual(booksets, expected)
def test_group_books_to_set_5books(self):
"""
一二三四五集各一本，組成：五本套書
"""
# arrange
books = {
POTTER_VOL_1: 1,
POTTER_VOL_2: 1,
POTTER_VOL_3: 1,
POTTER_VOL_4: 1,
POTTER_VOL_5: 1,
}
# act
booksets = BookSet.group_books_to_set(books)
# assert
expected = [
BookSet({POTTER_VOL_1, POTTER_VOL_2, POTTER_VOL_3, POTTER_VOL_4, POTTER_VOL_5}),
]
self.assertListEqual(booksets, expected)