import unittest

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

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 TestIgnoreElements(unittest.TestCase):
    def test_ignore_values_basic(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
            on_next(180, 1),
            on_next(210, 2),
            on_next(250, 3),
            on_next(270, 4),
            on_next(310, 5),
            on_next(360, 6),
            on_next(380, 7),
            on_next(410, 8),
            on_next(590, 9),
        )
        results = scheduler.start(create=lambda: xs.pipe(ops.ignore_elements()))

        assert results.messages == []
        assert xs.subscriptions == [subscribe(200, 1000)]

    def test_ignore_values_completed(self):
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
            on_next(180, 1),
            on_next(210, 2),
            on_next(250, 3),
            on_next(270, 4),
            on_next(310, 5),
            on_next(360, 6),
            on_next(380, 7),
            on_next(410, 8),
            on_next(590, 9),
            on_completed(610),
        )
        results = scheduler.start(create=lambda: xs.pipe(ops.ignore_elements()))

        assert results.messages == [on_completed(610)]
        assert xs.subscriptions == [subscribe(200, 610)]

    def test_ignore_values_error(self):
        ex = "ex"
        scheduler = TestScheduler()
        xs = scheduler.create_hot_observable(
            on_next(180, 1),
            on_next(210, 2),
            on_next(250, 3),
            on_next(270, 4),
            on_next(310, 5),
            on_next(360, 6),
            on_next(380, 7),
            on_next(410, 8),
            on_next(590, 9),
            on_error(610, ex),
        )
        results = scheduler.start(create=lambda: xs.pipe(ops.ignore_elements()))

        assert results.messages == [on_error(610, ex)]
        assert xs.subscriptions == [subscribe(200, 610)]