def test_async_single_manager_tables_chained(self):
columns = {"index": int, "num1": int, "num2": int}
manager = PerspectiveManager()
tbl = Table(columns, index="index")
view = tbl.view()
tbl2 = Table(view.to_arrow(), index=tbl.get_index())
manager.host(tbl, "tbl")
manager.host(tbl2, "tbl2")
view.on_update(lambda port, delta: tbl2.update(delta), "row")
manager.set_loop_callback(TestAsync.loop.add_callback)
for i in range(1000):
manager.call_loop(tbl.update, [{
"index": i,
"num1": i,
"num2": 2 * i
}])
i += 1
q = queue.Queue()
manager.call_loop(q.put, True)
q.get()
@syncify
def _tbl_task2():
size = tbl2.size()
return size
assert _tbl_task2() == 1000
view.delete()
tbl.delete()
tbl2.delete()
def test_async_call_loop(self):
tbl = Table({"a": int, "b": float, "c": str})
manager = PerspectiveManager()
manager.set_loop_callback(TestAsync.loop.add_callback)
manager.call_loop(tbl.update, data)
manager.host(tbl)
@syncify
def _task():
return tbl.size()
assert _task() == 10
tbl.delete()
def test_async_call_loop_error_if_no_loop(self):
tbl = Table({"a": int, "b": float, "c": str})
manager = PerspectiveManager()
with raises(PerspectiveError):
# loop not set - errors
manager.call_loop(tbl.update, data)
manager.set_loop_callback(TestAsync.loop.add_callback)
manager.call_loop(tbl.update, data)
manager.host(tbl)
@syncify
def _task():
return tbl.size()
# subsequent calls to call_loop will work if loop_callback is set.
assert _task() == 10
tbl.delete()
