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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 TestContains(unittest.TestCase):
def test_contains_empty(self):
scheduler = TestScheduler()
msgs = [on_next(150, 1), on_completed(250)]
xs = scheduler.create_hot_observable(msgs)
def create():
return xs.pipe(ops.contains(42))
res = scheduler.start(create=create).messages
assert res == [on_next(250, False), on_completed(250)]
def test_contains_return_positive(self):
scheduler = TestScheduler()
msgs = [on_next(150, 1), on_next(210, 2), on_completed(250)]
xs = scheduler.create_hot_observable(msgs)
def create():
return xs.pipe(ops.contains(2))
res = scheduler.start(create=create).messages
assert res == [on_next(210, True), on_completed(210)]
def test_contains_return_negative(self):
scheduler = TestScheduler()
msgs = [on_next(150, 1), on_next(210, 2), on_completed(250)]
xs = scheduler.create_hot_observable(msgs)
def create():
return xs.pipe(ops.contains(-2))
res = scheduler.start(create=create).messages
assert res == [on_next(250, False), on_completed(250)]
def test_contains_some_positive(self):
scheduler = TestScheduler()
msgs = [
on_next(150, 1),
on_next(210, 2),
on_next(220, 3),
on_next(230, 4),
on_completed(250),
]
xs = scheduler.create_hot_observable(msgs)
def create():
return xs.pipe(ops.contains(3))
res = scheduler.start(create=create).messages
assert res == [on_next(220, True), on_completed(220)]
def test_contains_some_negative(self):
scheduler = TestScheduler()
msgs = [
on_next(150, 1),
on_next(210, 2),
on_next(220, 3),
on_next(230, 4),
on_completed(250),
]
xs = scheduler.create_hot_observable(msgs)
def create():
return xs.pipe(ops.contains(-3))
res = scheduler.start(create=create).messages
assert res == [on_next(250, False), on_completed(250)]
def test_contains_on_error(self):
ex = "ex"
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1), on_error(210, ex))
def create():
return xs.pipe(ops.contains(42))
res = scheduler.start(create=create).messages
assert res == [on_error(210, ex)]
def test_contains_never(self):
scheduler = TestScheduler()
msgs = [on_next(150, 1)]
xs = scheduler.create_hot_observable(msgs)
def create():
return xs.pipe(ops.contains(42))
res = scheduler.start(create=create).messages
assert res == []
def test_contains_comparer_throws(self):
ex = "ex"
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1), on_next(210, 2))
def create():
def comparer(a, b):
raise Exception(ex)
return xs.pipe(ops.contains(42, comparer))
res = scheduler.start(create=create).messages
assert res == [on_error(210, ex)]
def test_contains_comparer_contains_value(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 3),
on_next(220, 4),
on_next(230, 8),
on_completed(250),
)
def create():
return xs.pipe(ops.contains(42, lambda a, b: a % 2 == b % 2))
res = scheduler.start(create=create).messages
assert res == [on_next(220, True), on_completed(220)]
def test_contains_comparer_does_not_contain_value(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 2),
on_next(220, 4),
on_next(230, 8),
on_completed(250),
)
def create():
return xs.pipe(ops.contains(21, lambda a, b: a % 2 == b % 2))
res = scheduler.start(create=create).messages
assert res == [on_next(250, False), on_completed(250)]
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