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from typing import Any
from reactivex.abc import ObserverBase
from reactivex.notification import OnCompleted, OnError, OnNext
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
def test_on_next_ctor_and_props():
n = OnNext(42)
assert "N" == n.kind
assert n.has_value
assert 42 == n.value
assert not hasattr(n, "exception")
def test_on_next_equality():
n1 = OnNext(42)
n2 = OnNext(42)
n3 = OnNext(24)
n4 = OnCompleted()
assert n1.equals(n1)
assert n1.equals(n2)
assert n2.equals(n1)
assert not n1.equals(None)
assert not n1.equals(n3)
assert not n3.equals(n1)
assert not n1.equals(n4)
assert not n4.equals(n1)
def test_on_next_tostring():
n1 = OnNext(42)
assert "OnNext" in str(n1)
assert "42" in str(n1)
class CheckOnNextObserver(ObserverBase):
def __init__(self):
super(CheckOnNextObserver, self).__init__()
self.value = None
def on_next(self, value):
self.value = value
return self.value
def on_error(self, error):
raise NotImplementedError
def on_completed(self):
def func():
raise NotImplementedError
return func
def test_on_next_accept_observer():
con = CheckOnNextObserver()
n1 = OnNext(42)
n1.accept(con)
assert con.value == 42
class AcceptObserver(ObserverBase):
def __init__(self, on_next, on_error, on_completed):
self._on_next = on_next
self._on_error = on_error
self._on_completed = on_completed
def on_next(self, value):
return self._on_next(value)
def on_error(self, exception):
return self._on_error(exception)
def on_completed(self):
return self._on_completed()
def test_on_next_accept_observer_with_result():
n1 = OnNext(42)
def on_next(x):
return "OK"
def on_error(err):
assert False
def on_completed():
assert False
res = n1.accept(AcceptObserver(on_next, on_error, on_completed))
assert "OK" == res
def test_on_next_accept_action():
obs = [False]
n1 = OnNext(42)
def on_next(x):
obs[0] = True
return obs[0]
def on_error(err):
assert False
def on_completed():
assert False
n1.accept(on_next, on_error, on_completed)
assert obs[0]
def test_on_next_accept_action_with_result():
n1 = OnNext(42)
def on_next(x):
return "OK"
def on_error(err):
assert False
def on_completed():
assert False
res = n1.accept(on_next, on_error, on_completed)
assert "OK" == res
def test_throw_ctor_and_props():
e = "e"
n = OnError(e)
assert "E" == n.kind
assert not n.has_value
assert e == str(n.exception)
def test_throw_equality():
ex1 = "ex1"
ex2 = "ex2"
n1 = OnError(ex1)
n2 = OnError(ex1)
n3 = OnError(ex2)
n4 = OnCompleted()
assert n1.equals(n1)
assert n1.equals(n2)
assert n2.equals(n1)
assert not n1.equals(None)
assert not n1.equals(n3)
assert not n3.equals(n1)
assert not n1.equals(n4)
assert not n4.equals(n1)
def test_throw_tostring():
ex = "ex"
n1 = OnError(ex)
assert "OnError" in str(n1)
assert "ex" in str(n1)
class CheckOnErrorObserver(ObserverBase[Any]):
def __init__(self):
super(CheckOnErrorObserver, self).__init__()
self.error = None
def on_next(self, value: Any) -> None:
raise NotImplementedError()
def on_error(self, error: Exception) -> None:
self.error = str(error)
def on_completed(self) -> None:
raise NotImplementedError()
def test_throw_accept_observer():
ex = "ex"
obs = CheckOnErrorObserver()
n1 = OnError(ex)
n1.accept(obs)
assert ex == obs.error
def test_throw_accept_observer_with_result():
ex = "ex"
n1 = OnError(ex)
def on_next(x):
assert False
return None
def on_error(ex):
return "OK"
def on_completed():
assert False
return None
res = n1.accept(AcceptObserver(on_next, on_error, on_completed))
assert "OK" == res
def test_throw_accept_action():
ex = "ex"
obs = [False]
n1 = OnError(ex)
def on_next(x):
assert False
return None
def on_error(ex):
obs[0] = True
return obs[0]
def on_completed():
assert False
return None
n1.accept(on_next, on_error, on_completed)
assert obs[0]
def test_throw_accept_action_with_result():
ex = "ex"
n1 = OnError(ex)
def on_next(x):
assert False
return None
def on_error(ex):
return "OK"
def on_completed():
assert False
return None
res = n1.accept(on_next, on_error, on_completed)
assert "OK" == res
def test_close_ctor_and_props():
n = OnCompleted()
assert "C" == n.kind
assert not n.has_value
assert not hasattr(n, "exception")
def test_close_equality():
n1 = OnCompleted()
n2 = OnCompleted()
n3 = OnNext(2)
assert n1.equals(n1)
assert n1.equals(n2)
assert n2.equals(n1)
assert not n1.equals(None)
assert not n1.equals(n3)
assert not n3.equals(n1)
def test_close_tostring():
n1 = OnCompleted()
assert "OnCompleted" in str(n1)
class CheckOnCompletedObserver(ObserverBase):
def __init__(self):
super(CheckOnCompletedObserver, self).__init__()
self.completed = False
def on_next(self):
raise NotImplementedError()
def on_error(self):
raise NotImplementedError()
def on_completed(self):
self.completed = True
def test_close_accept_observer():
obs = CheckOnCompletedObserver()
n1 = OnCompleted()
n1.accept(obs)
assert obs.completed
def test_close_accept_observer_with_result():
n1 = OnCompleted()
def on_next(x):
assert False
return None
def on_error(err):
assert False
return None
def on_completed():
return "OK"
res = n1.accept(AcceptObserver(on_next, on_error, on_completed))
assert "OK" == res
def test_close_accept_action():
obs = [False]
n1 = OnCompleted()
def on_next(x):
assert False
return None
def on_error(ex):
assert False
return None
def on_completed():
obs[0] = True
return obs[0]
n1.accept(on_next, on_error, on_completed)
assert obs[0]
def test_close_accept_action_with_result():
n1 = OnCompleted()
def on_next(x):
assert False
return None
def on_error(ex):
assert False
return None
def on_completed():
return "OK"
res = n1.accept(on_next, on_error, on_completed)
assert "OK" == res
def test_to_observable_empty():
scheduler = TestScheduler()
def create():
return OnCompleted().to_observable(scheduler)
res = scheduler.start(create)
assert res.messages == [ReactiveTest.on_completed(200)]
def test_to_observable_return():
scheduler = TestScheduler()
def create():
return OnNext(42).to_observable(scheduler)
res = scheduler.start(create)
assert res.messages == [
ReactiveTest.on_next(200, 42),
ReactiveTest.on_completed(200),
]
def test_to_observable_on_error():
ex = "ex"
scheduler = TestScheduler()
def create():
return OnError(ex).to_observable(scheduler)
res = scheduler.start(create)
assert res.messages == [ReactiveTest.on_error(200, ex)]
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