(以下代码可以在木星中运行。)我有一个B类,它使用A类,需要测试。
class A:
async def f(self):
pass
class B:
async def f(self):
a = A()
x = await a.f() # need to be patched/mocked
我有下面的测试代码。它似乎模拟了A的类方法,而不是实例方法。
from asyncio import Future
from unittest.mock import MagicMock, Mock, patch
async def t
我完全被困在尝试进行方法的同步调用上。我试图从服务器端获取客户端列表(简化版本,最初是对另一个API的调用),并在网页上打印此列表。
客户端代码(角1):
import template from './clientsList.html';
import {Meteor} from 'meteor/meteor';
class ClientsList {
constructor() {
console.log('First');
Meteor.call('getClients', fun
我对Dart的async/await功能的理解有点混乱。大多数教程使用以下示例:
Future<String> createOrderMessage() async {
var order = await fetchUserOrder();
return 'Your order is: $order';
}
Future<String> fetchUserOrder() =>
// Imagine that this function is
// more complex and slow.
Future.dela
我已经写了一个异步函数,它收集多个文本数据,并进行批量数据处理。在此之后,它返回输出,如下所示:
import sys
import asyncio
Model_runner():
'''
The model runner combines all the input coming to it and combines in a batch of 10 or 1 sec, which ever duration is less.
After combining, it does processing and returns the outpu
如何退还Future<void>?
Future<void> deleteAll(List stuff){
stuff.forEach( s => delete(s)); //How do I return Future<void> when loop and all delete Operation are finished?
}
Future<void> delete(Stuff s) async {
....
file.writeAsString(jsonEncode(..
在GAE中,NDB _post_delete_hook的签名是:
def _post_delete_hook(cls, key, future):
我想知道future参数有什么好处。根据Key.delete上的文档,这个Future将永远是 None。文档甚至说您不能使用Future来确定删除是否成功。在这里(来自Key.delete in key.py):
"""
This returns a Future, whose result becomes available once the
deletion is complete. If no such entit
你好,我目前正在构建一个过于复杂的Todo颤振应用程序,我遇到了以下错误:
E/flutter (25502): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: 'package:get_it/get_it_impl.dart': Failed assertion: line 372 pos 7: 'instanceFactory != null': Object/factory with type DataServiceManager is not registe
我正在研究一些,使用最新的Dart来解决打破性的更改。这个我搞不懂:
Future<DateTime> get lastsave =>
client.lastsave.transform((int unixTs) =>
new DateTime.fromMillisecondsSinceEpoch(unixTs * 1000, isUtc:true));
=>
The method 'transform' is not defined for the class 'Future<List<int>>'
我有一些等同于以下代码片段的东西:
import asyncio
futures = []
loop = asyncio.get_event_loop()
for coroutine in coroutines:
futures.append(asyncio.run_coroutine_threadsafe(coroutine, loop))
for future in futures:
future.result()
这引发了以下错误:
in main
future.result()
File "/usr/lib/python3.5/asyncio/fu
在Meteor.binEnvironment中已经存在的函数中,当我运行<collection>.find ({})时,我得到错误throw new Error ('Can \' t wait without a fiber ');如果您也在Meteor.bindEnvironment(<collection>.find ({}))中进行该调用,则错误消息变为:throw new Error (noFiberMessage);
有问题的函数通过Meteor.methods ({})运行,我在哪里出错了?
重现错误的示例:
Meteor.metho
我正在使用两个函数,它们都应该返回一个未来。当这两个函数都完成时,将调用第三个函数。现在,未来的返回太早了,所以在完成第二个函数之前调用了我的第三个函数。
Function1:
static var getObjectDataCompleter = new Completer();
static var fillObjectCompleter = new Completer();
static Future getObjectData(List jsonMap) {
for (int i = 0; i < jsonMap.length; i++) {
fillObject