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import unittest
import reactivex
from reactivex.testing import 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 RxException(Exception):
pass
# Helper function for raising exceptions within lambdas
def _raise(ex):
raise RxException(ex)
class TestFromCallback(unittest.TestCase):
def test_from_callback(self):
res = reactivex.from_callback(lambda cb: cb(True))()
def on_next(r):
self.assertEqual(r, True)
def on_error(err):
assert False
def on_completed():
assert True
res.subscribe(on_next, on_error, on_completed)
def test_from_callback_single(self):
res = reactivex.from_callback(lambda file, cb: cb(file))("file.txt")
def on_next(r):
self.assertEqual(r, "file.txt")
def on_error(err):
assert False
def on_completed():
assert True
res.subscribe(on_next, on_error, on_completed)
def test_from_node_callback_mapper(self):
res = reactivex.from_callback(lambda f, s, t, cb: cb(f, s, t), lambda r: r[0])(
1, 2, 3
)
def on_next(r):
self.assertEqual(r, 1)
def on_error(err):
assert False
def on_completed():
assert True
res.subscribe(on_next, on_error, on_completed)
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