def test_waitall_exc():
pool = DAGPool()
pool.spawn("a", (), raiser, BogusError("bogus"))
try:
pool.waitall()
except PropagateError as err:
assert_equals(err.key, "a")
assert isinstance(err.exc, BogusError), \
"exc attribute is {0}, not BogusError".format(err.exc)
assert_equals(str(err.exc), "bogus")
msg = str(err)
assert_in("PropagateError(a)", msg)
assert_in("BogusError", msg)
assert_in("bogus", msg)
def test_waitall_exc():
pool = DAGPool()
pool.spawn("a", (), raiser, BogusError("bogus"))
try:
pool.waitall()
except PropagateError as err:
assert_equals(err.key, "a")
assert isinstance(err.exc, BogusError), \
"exc attribute is {0}, not BogusError".format(err.exc)
assert_equals(str(err.exc), "bogus")
msg = str(err)
assert_in("PropagateError(a)", msg)
assert_in("BogusError", msg)
assert_in("bogus", msg)
def test_post_get_exc():
pool = DAGPool()
bogua = BogusError("bogua")
pool.post("a", bogua)
assert isinstance(pool.get("a"), BogusError), \
"should have delivered BogusError instead of raising"
bogub = PropagateError("b", BogusError("bogub"))
pool.post("b", bogub)
with assert_raises(PropagateError):
pool.get("b")
# Notice that although we have both "a" and "b" keys, items() is
# guaranteed to raise PropagateError because one of them is
# PropagateError. Other values don't matter.
with assert_raises(PropagateError):
pool.items()
# Similar remarks about waitall() and wait().
with assert_raises(PropagateError):
pool.waitall()
with assert_raises(PropagateError):
pool.wait()
with assert_raises(PropagateError):
pool.wait("b")
with assert_raises(PropagateError):
pool.wait("ab")
# but if we're only wait()ing for success results, no exception
assert isinstance(pool.wait("a")["a"], BogusError), \
"should have delivered BogusError instead of raising"
# wait_each() is guaranteed to eventually raise PropagateError, though you
# may obtain valid values before you hit it.
with assert_raises(PropagateError):
for k, v in pool.wait_each():
pass
# wait_each_success() filters
assert_equals(dict(pool.wait_each_success()), dict(a=bogua))
assert_equals(dict(pool.wait_each_success("ab")), dict(a=bogua))
assert_equals(dict(pool.wait_each_success("a")), dict(a=bogua))
assert_equals(dict(pool.wait_each_success("b")), {})
# wait_each_exception() filters the other way
assert_equals(dict(pool.wait_each_exception()), dict(b=bogub))
assert_equals(dict(pool.wait_each_exception("ab")), dict(b=bogub))
assert_equals(dict(pool.wait_each_exception("a")), {})
assert_equals(dict(pool.wait_each_exception("b")), dict(b=bogub))
def test_post_get_exc():
pool = DAGPool()
bogua = BogusError("bogua")
pool.post("a", bogua)
assert isinstance(pool.get("a"), BogusError), \
"should have delivered BogusError instead of raising"
bogub = PropagateError("b", BogusError("bogub"))
pool.post("b", bogub)
with assert_raises(PropagateError):
pool.get("b")
# Notice that although we have both "a" and "b" keys, items() is
# guaranteed to raise PropagateError because one of them is
# PropagateError. Other values don't matter.
with assert_raises(PropagateError):
pool.items()
# Similar remarks about waitall() and wait().
with assert_raises(PropagateError):
pool.waitall()
with assert_raises(PropagateError):
pool.wait()
with assert_raises(PropagateError):
pool.wait("b")
with assert_raises(PropagateError):
pool.wait("ab")
# but if we're only wait()ing for success results, no exception
assert isinstance(pool.wait("a")["a"], BogusError), \
"should have delivered BogusError instead of raising"
# wait_each() is guaranteed to eventually raise PropagateError, though you
# may obtain valid values before you hit it.
with assert_raises(PropagateError):
for k, v in pool.wait_each():
pass
# wait_each_success() filters
assert_equals(dict(pool.wait_each_success()), dict(a=bogua))
assert_equals(dict(pool.wait_each_success("ab")), dict(a=bogua))
assert_equals(dict(pool.wait_each_success("a")), dict(a=bogua))
assert_equals(dict(pool.wait_each_success("b")), {})
# wait_each_exception() filters the other way
assert_equals(dict(pool.wait_each_exception()), dict(b=bogub))
assert_equals(dict(pool.wait_each_exception("ab")), dict(b=bogub))
assert_equals(dict(pool.wait_each_exception("a")), {})
assert_equals(dict(pool.wait_each_exception("b")), dict(b=bogub))
def test_init():
with suspend_checker():
# no preload data, just so we know it doesn't blow up
pool = DAGPool()
# preload dict
pool = DAGPool(dict(a=1, b=2, c=3))
# this must not hang
with check_no_suspend():
results = pool.waitall()
# with no spawn() or post(), waitall() returns preload data
assert_equals(results, dict(a=1, b=2, c=3))
# preload sequence of pairs
pool = DAGPool([("d", 4), ("e", 5), ("f", 6)])
# this must not hang
with check_no_suspend():
results = pool.waitall()
assert_equals(results, dict(d=4, e=5, f=6))
def test_init():
with suspend_checker():
# no preload data, just so we know it doesn't blow up
pool = DAGPool()
# preload dict
pool = DAGPool(dict(a=1, b=2, c=3))
# this must not hang
with check_no_suspend():
results = pool.waitall()
# with no spawn() or post(), waitall() returns preload data
assert_equals(results, dict(a=1, b=2, c=3))
# preload sequence of pairs
pool = DAGPool([("d", 4), ("e", 5), ("f", 6)])
# this must not hang
with check_no_suspend():
results = pool.waitall()
assert_equals(results, dict(d=4, e=5, f=6))
