import unittest

from rx import operators as ops
from rx.testing import TestScheduler, ReactiveTest

on_next = ReactiveTest.on_next
on_completed = ReactiveTest.on_completed
on_error = ReactiveTest.on_error
subscribe = ReactiveTest.subscribe
subscribed = ReactiveTest.subscribed
disposed = ReactiveTest.disposed
created = ReactiveTest.created


class TestTakeWithTime(unittest.TestCase):

    def test_take_zero(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
            on_next(210, 1),
            on_next(220, 2),
            on_completed(230))

        def create():
            return xs.pipe(ops.take_with_time(0))

        res = scheduler.start(create)

        assert res.messages == [on_completed(200)]
        assert xs.subscriptions == [subscribe(200, 200)]

    def test_take_some(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
                on_next(210, 1), on_next(220, 2), on_next(230, 3),
                on_completed(240))

        def create():
            return xs.pipe(ops.take_with_time(25))

        res = scheduler.start(create)

        assert res.messages == [on_next(210, 1), on_next(220, 2), on_completed(225)]
        assert xs.subscriptions == [subscribe(200, 225)]

    def test_take_late(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
                on_next(210, 1), on_next(220, 2), on_completed(230))

        def create():
            return xs.pipe(ops.take_with_time(50))

        res = scheduler.start(create)

        assert res.messages == [on_next(210, 1), on_next(220, 2), on_completed(230)]
        assert xs.subscriptions == [subscribe(200, 230)]

    def test_take_Error(self):
        scheduler = TestScheduler()
        ex = 'ex'
        xs = scheduler.create_hot_observable(on_error(210, ex))

        def create():
            return xs.pipe(ops.take_with_time(50))

        res = scheduler.start(create)

        assert res.messages == [on_error(210, ex)]
        assert xs.subscriptions == [subscribe(200, 210)]

    def test_take_never(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable()

        def create():
            return xs.pipe(ops.take_with_time(50))

        res = scheduler.start(create)

        assert res.messages == [on_completed(250)]
        assert xs.subscriptions == [subscribe(200, 250)]

    def test_take_twice1(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
                on_next(210, 1), on_next(220, 2), on_next(230, 3),
                on_next(240, 4), on_next(250, 5), on_next(260, 6),
                on_completed(270))

        def create():
            return xs.pipe(
                    ops.take_with_time(55),
                    ops.take_with_time(35),
                    )

        res = scheduler.start(create)

        assert res.messages == [
                on_next(210, 1), on_next(220, 2), on_next(230, 3),
                on_completed(235)]
        assert xs.subscriptions == [subscribe(200, 235)]

    def test_take_twice2(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
                on_next(210, 1), on_next(220, 2), on_next(230, 3),
                on_next(240, 4), on_next(250, 5), on_next(260, 6),
                on_completed(270))

        def create():
            return xs.pipe(
                    ops.take_with_time(35),
                    ops.take_with_time(55),
                    )

        res = scheduler.start(create)

        assert res.messages == [
                on_next(210, 1), on_next(220, 2), on_next(230, 3),
                on_completed(235)]
        assert xs.subscriptions == [subscribe(200, 235)]