import pytest
import yaml
import mock
from vcr.cassette import Cassette


def test_cassette_load(tmpdir):
    a_file = tmpdir.join('test_cassette.yml')
    a_file.write(yaml.dump([
        {'request': 'foo', 'response': 'bar'}
    ]))
    a_cassette = Cassette.load(str(a_file))
    assert len(a_cassette) == 1


def test_cassette_not_played():
    a = Cassette('test')
    assert not a.play_count


def test_cassette_played():
    a = Cassette('test')
    a.mark_played('foo')
    a.mark_played('foo')
    assert a.play_count == 2


def test_cassette_play_counter():
    a = Cassette('test')
    a.mark_played('foo')
    a.mark_played('bar')
    assert a.play_counts['foo'] == 1
    assert a.play_counts['bar'] == 1


def test_cassette_append():
    a = Cassette('test')
    a.append('foo', 'bar')
    assert a.requests == ['foo']
    assert a.responses == ['bar']


def test_cassette_len():
    a = Cassette('test')
    a.append('foo', 'bar')
    a.append('foo2', 'bar2')
    assert len(a) == 2


def _mock_requests_match(request1, request2, matchers):
    return request1 == request2

@mock.patch('vcr.cassette.requests_match', _mock_requests_match)
def test_cassette_contains():
    a = Cassette('test')
    a.append('foo', 'bar')
    assert 'foo' in a


@mock.patch('vcr.cassette.requests_match', _mock_requests_match)
def test_cassette_response_of():
    a = Cassette('test')
    a.append('foo', 'bar')
    assert a.response_of('foo') == 'bar'


@mock.patch('vcr.cassette.requests_match', _mock_requests_match)
def test_cassette_get_missing_response():
    a = Cassette('test')
    with pytest.raises(KeyError):
        a.response_of('foo')