def test_should_raise_exception_given_no_binary_was_found(mocker):
mocked_spawn = mocker.patch("transcriber_wrapper.backends.festival.distutils.spawn")
mocked_find_executable = mocked_spawn.find_executable
mocked_find_executable.return_value = None
with pytest.raises(BinaryNotFoundException):
FestivalBackend.discover_binary_location()
mocked_find_executable.assert_called_once_with("festival")
def test_should_return_binary_path():
espeak_path = FestivalBackend.discover_binary_location()
assert espeak_path == "/usr/bin/festival"