小编roo*_*tar的帖子

Golang有标准的日志包.有没有办法将mircoseconds放到其输出？

标准代码使用非常无用的时间戳和第二个精度:

log.Println("Starting app on", APP_PORT)

2015/07/29 19:28:32 Starting app on :9090

我尝试使用minitest-rails测试我的控制器问题并结合这些技术:

http://ridingtheclutch.com/post/55701769414/testing-controller-concerns-in-rails.

Minitest中的匿名控制器w/Rails

我得到"没有路由匹配错误":ActionController :: UrlGenerationError:没有路由匹配{:action =>"index",:controller =>"fake"}

require "test_helper"
require "warden_mock"

class FakeController < ApplicationController
  attr_accessor :request

  def initialize(method_name=nil, &method_body)
    include MyConcern # method redirect_to_404 placed here

    @request = OpenStruct.new # mockup request
    @request.env = {}
    @request.env['warden'] = WardenMock.new # mockup warden

    if method_name and block_given? # dynamically define action for concern methods testing
      self.class.send(:define_method, method_name, method_body)
      test_routes = Proc.new do
        resources :fake
      end
      Rails.application.routes.eval_block(test_routes)
    end
  end
end


describe FakeController do # just very simple test
  context "just …

有没有办法直接运行处理程序ansible-playbook？

例如，restart service我的角色中有处理程序，有时我只想直接触发它而不部署整个应用程序。

每个 to_yaml 输出都有三个前导破折号：

---
a:
  b:
    c: soemthing

如何将对象转换为 yaml 且不带前导破折号？

很抱歉,这个问题是重复的.但我无法找到使用上的差异.当我运行以下代码时,我得到了不同的答案.我从大多数教程中看到,使用"do ... end"与"{...}"块相同.

include Comparable

a = [1, 4, 2, 3, 5]

p a.sort do |x,y|
    y <=> x
end

输出显示为= [1,2,3,4,5]

但是当我这样跑的时候......

include Comparable

a = [1, 4, 2, 3, 5]

p a.sort { |x,y|
    y <=> x
}

输出显示为= [5,4,3,2,1]

这里有什么问题.是否存在两种语法有任何不同行为的情况？

我正在为饼图寻找条形图brushOn(假)模拟.

此代码对我不起作用:

  chart.renderlet (_chart) ->
    _chart.selectAll(".pie-slice").on "click", (d) ->
      _chart.filter null

我的dc-js版本是2.0

我试图编写rhodes本机扩展扩展来打开iOS MailComposer.现在代码"工作",但MFMailComposeViewController没有显示,xcode显示警告:

Attempt to present <MFMailComposeViewController: 0x12b60840> on <Iosmailto: 0xc1898d0> whose view is not in the window hierarchy!

我读到UIViewControllers必须在层次结构中,但我不能从Rhodes ruby​​代码或clear-C扩展包装器中提供.现在我正在尝试使用来自[UIApplication sharedApplication] .keyWindow.rootViewController的MFMailComposeController呈现我的UIViewController,但邮件编辑器尚未显示.

来自iosmailto.h的界面:

@interface Iosmailto : UIViewController<MFMailComposeViewControllerDelegate>
{
}
    @property(nonatomic, assign) id delegate;
    //-(IBAction)send_mail:(id)sender;
@end

从iosmailto.m实现:

@implementation Iosmailto

    - (void)viewDidLoad {
        [super viewDidLoad];
        [self send_mail];
    }

    - (void)send_mail {
        if ([MFMailComposeViewController canSendMail]) {

            MFMailComposeViewController *composer = [[MFMailComposeViewController alloc] init];
            composer.mailComposeDelegate = self;
            [composer setSubject:[NSString stringWithUTF8String:subj]];

            NSArray *recipients_array = [NSArray arrayWithObject:[NSString stringWithUTF8String:recipients]]; …

当我使用minitest-rails gem运行非常简单的测试时，我陷入了错误。我有Rails 4.1.5和minitest 5.4.0

抽水测试：控制器

1）错误：DashboardController :: index action＃test_0001_anonymous：NoMethodError：“中的未定义方法get' for #<#<Class:0x00000008e28170>:0x00000008eeb9b8> test/controllers/dashboard_controller_test.rb:6:in块（3个级别）

测试：

require "test_helper"

describe DashboardController do
  context "index action" do
    before do
      get :index
    end
    it { must_respond_with :success }
    it "must render index view" do
      must_render_template :index
    end
  end
end

我的test_helper：

ENV["RAILS_ENV"] = "test"
require File.expand_path("../../config/environment", __FILE__)
require "rails/test_help"
require "minitest/rails"
require "minitest/rails/capybara"


class MiniTest::Spec
  class << self
    alias :context :describe
  end
end


class RequestTest < MiniTest::Spec
  include Rails.application.routes.url_helpers

  register_spec_type(/request$/, self)
end


class ActionDispatch::IntegrationTest
  # …