def test_promise_all_if():
p1 = Promise()
p2 = Promise()
pd1 = Promise.all([p1, p2])
pd2 = Promise.all([p1])
pd3 = Promise.all([])
pd3._wait()
assert p1.is_pending
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_pending
assert pd3.is_fulfilled
p1.do_resolve(5)
p1._wait()
pd2._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_fulfilled
p2.do_resolve(10)
p2._wait()
pd1._wait()
pd2._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pd1.is_fulfilled
assert pd2.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert 5 == pd1.get()[0]
assert 5 == pd2.get()[0]
assert 10 == pd1.get()[1]
assert [] == pd3.get()
def test_dict_promise_when(promise_for_dict):
p1 = Promise()
p2 = Promise()
d = {"a": p1, "b": p2}
pd1 = promise_for_dict(d)
pd2 = promise_for_dict({"a": p1})
pd3 = promise_for_dict({})
assert p1.is_pending
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_pending
pd3._wait()
assert pd3.is_fulfilled
p1.do_resolve(5)
p1._wait()
pd2._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_fulfilled
p2.do_resolve(10)
p2._wait()
pd1._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pd1.is_fulfilled
assert pd2.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert 5 == pd1.get()["a"]
assert 5 == pd2.get()["a"]
assert 10 == pd1.get()["b"]
assert {} == pd3.get()
def test_3_2_6_3_if_rejected():
"""
Testing return of pending promises to make
sure they are properly chained.
This covers the case where the root promise
is rejected before the chaining is defined.
"""
p1 = Promise()
p1.do_reject(Exception("Error"))
pending = Promise()
pending.do_resolve(10)
pr = p1.then(None, lambda r: pending)
pending._wait()
assert pending.is_fulfilled
assert 10 == pending.get()
pr._wait()
assert pr.is_fulfilled
assert 10 == pr.get()
p2 = Promise()
p2.do_reject(Exception("Error"))
bad = Promise()
bad.do_reject(Exception("Assertion"))
pr = p2.then(None, lambda r: bad)
bad._wait()
assert bad.is_rejected
assert_exception(bad.reason, Exception, "Assertion")
pr._wait()
assert pr.is_rejected
assert_exception(pr.reason, Exception, "Assertion")
def test_dict_promise_when(promise_for_dict):
p1 = Promise()
p2 = Promise()
d = {"a": p1, "b": p2}
pd1 = promise_for_dict(d)
pd2 = promise_for_dict({"a": p1})
pd3 = promise_for_dict({})
assert p1.is_pending
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_pending
pd3._wait()
assert pd3.is_fulfilled
p1.do_resolve(5)
p1._wait()
pd2._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_fulfilled
p2.do_resolve(10)
p2._wait()
pd1._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pd1.is_fulfilled
assert pd2.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert 5 == pd1.get()["a"]
assert 5 == pd2.get()["a"]
assert 10 == pd1.get()["b"]
assert {} == pd3.get()
def test_promise_all_if():
p1 = Promise()
p2 = Promise()
pd1 = Promise.all([p1, p2])
pd2 = Promise.all([p1])
pd3 = Promise.all([])
pd3._wait()
assert p1.is_pending
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_pending
assert pd3.is_fulfilled
p1.do_resolve(5)
p1._wait()
pd2._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pd1.is_pending
assert pd2.is_fulfilled
p2.do_resolve(10)
p2._wait()
pd1._wait()
pd2._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pd1.is_fulfilled
assert pd2.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert 5 == pd1.get()[0]
assert 5 == pd2.get()[0]
assert 10 == pd1.get()[1]
assert [] == pd3.get()
def test_dict_promise_if(promise_for_dict):
p1 = Promise()
p2 = Promise()
d = {"a": p1, "b": p2}
pd = promise_for_dict(d)
assert p1.is_pending
assert p2.is_pending
assert pd.is_pending
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pd.is_pending
p2.do_resolve(10)
p2._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
def test_dict_promise_if(promise_for_dict):
p1 = Promise()
p2 = Promise()
d = {"a": p1, "b": p2}
pd = promise_for_dict(d)
assert p1.is_pending
assert p2.is_pending
assert pd.is_pending
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pd.is_pending
p2.do_resolve(10)
p2._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
def test_promise_all_when_mixed_promises():
p1 = Promise()
p2 = Promise()
pl = Promise.all([p1, 32, p2, False, True])
assert p1.is_pending
assert p2.is_pending
assert pl.is_pending
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pl.is_pending
p2.do_resolve(10)
p2._wait()
pl._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pl.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert pl.get() == [5, 32, 10, False, True]
def test_promise_all_when_mixed_promises():
p1 = Promise()
p2 = Promise()
pl = Promise.all([p1, 32, p2, False, True])
assert p1.is_pending
assert p2.is_pending
assert pl.is_pending
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pl.is_pending
p2.do_resolve(10)
p2._wait()
pl._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pl.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert pl.get() == [5, 32, 10, False, True]
def test_3_2_6_3_when_fulfilled():
"""
Testing return of pending promises to make
sure they are properly chained.
This covers the case where the root promise
is fulfilled after the chaining is defined.
"""
p1 = Promise()
pending = Promise()
def p1_resolved(v):
return pending
pf = p1.then(p1_resolved)
assert pending.is_pending
assert pf.is_pending
p1.do_resolve(10)
pending.do_resolve(5)
pending._wait()
assert pending.is_fulfilled
assert 5 == pending.get()
pf._wait()
assert pf.is_fulfilled
assert 5 == pf.get()
p2 = Promise()
bad = Promise()
pr = p2.then(lambda r: bad)
assert bad.is_pending
assert pr.is_pending
p2.do_resolve(10)
bad._reject_callback(Exception("Error"))
bad._wait()
assert bad.is_rejected
assert_exception(bad.reason, Exception, "Error")
pr._wait()
assert pr.is_rejected
assert_exception(pr.reason, Exception, "Error")
def test_promise_all_when():
p1 = Promise()
p2 = Promise()
pl = Promise.all([p1, p2])
assert p1.is_pending
assert p2.is_pending
assert pl.is_pending
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pl.is_pending
p2.do_resolve(10)
p2._wait()
pl._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pl.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert 5 == pl.get()[0]
assert 10 == pl.get()[1]
def test_promise_all_when():
p1 = Promise()
p2 = Promise()
pl = Promise.all([p1, p2])
assert p1.is_pending
assert p2.is_pending
assert pl.is_pending
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
assert p2.is_pending
assert pl.is_pending
p2.do_resolve(10)
p2._wait()
pl._wait()
assert p1.is_fulfilled
assert p2.is_fulfilled
assert pl.is_fulfilled
assert 5 == p1.get()
assert 10 == p2.get()
assert 5 == pl.get()[0]
assert 10 == pl.get()[1]
def test_wait_if():
p1 = Promise()
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
def test_wait_if():
p1 = Promise()
p1.do_resolve(5)
p1._wait()
assert p1.is_fulfilled
