def test_loading_new_book_emits_changed_event(mocker):
from cozy.media.player import Player
mocker.patch("cozy.media.player.Player._rewind_in_book")
library = inject.instance(Library)
player = Player()
spy = mocker.spy(player, "emit_event_main_thread")
book = library.books[2]
player._continue_book(book)
spy.assert_has_calls(calls=[call("chapter-changed", book)])
def test_loading_new_book_loads_chapter_and_book(mocker):
from cozy.media.player import Player
mocker.patch("cozy.media.player.Player._rewind_in_book")
library = inject.instance(Library)
player = Player()
book = library.books[0]
player._continue_book(book)
assert player._book == book
assert player._book.current_chapter == book.current_chapter