小编Ива*_*вац的帖子

我是Java的新手,也是JUnit测试的新手.这对我来说绝对清楚是什么Test类,但TestSuite班级让我感到困惑.有人可以解释一下TestSuite是为了什么吗？

我正在尝试搜索亚马逊.我想选择类别,例如.书籍,键入一些搜索条件,例如.java并单击Go按钮.我的问题是单击Go按钮.我有例外:

线程"main"中的异常java.lang.IndexOutOfBoundsException:索引:0,大小:0,java.util.ArrayList.rangeCheck(ArrayList.java:571),位于java.util.ArrayList.get(ArrayList.java:349)at Bot.main中的Bot.clickSubmitButton(Bot.java:77)(Bot.java:111)

这是我的代码:

/**
 * @author ivan.bisevac
 */

import java.io.IOException;
import java.net.MalformedURLException;

import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlImageInput;
import com.gargoylesoftware.htmlunit.html.HtmlInput;
import com.gargoylesoftware.htmlunit.html.HtmlOption;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlSelect;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;

public class Bot {
    private HtmlPage currentPage;

    public HtmlPage getCurrentPage() {
        return currentPage;
    }

    public Bot() {

    }

    /**
     * Bot constructor
     * 
     * @param pageAddress
     *            Address to go.
     * @throws IOException
     * @throws MalformedURLException
     * @throws FailingHttpStatusCodeException
     */
    public Bot(String pageAddress) throws FailingHttpStatusCodeException,
            MalformedURLException, IOException {
        this();
        this.goToAddress(pageAddress);
    } …

我正在使用Capybara(Selenium驱动程序)访问网站上的某些页面.我只需点击数组中的每个项目,然后单击后退按钮.它很好,但每次经过一些迭代后它就会破坏.这是代码:

all(:xpath, '//table[@class="griglia_bordata"]//tr[td]/td/a[1]').each do |a|
  a_js_functions << a[:href]
end
a_js_functions.each do |js_for_model|
  puts js_for_model
  page.execute_script js_for_model
  find(:xpath, "//a[text()='Check availability']").click
  puts find(".testo_grande_blu_B").text
  puts "--------------------------------------------"
  find(:xpath, "//a[text()='Back']").click
end

我有输出:

javascript:selectModel('130254')风格:RB2132 --------------------------------------- ----- javascript:selectModel('309257')风格:RB2140 ---------------------------------- ---------- javascript:selectModel('68238')风格:RB3016 ----------------------------- --------------- javascript:selectModel('68248')风格:RB3025 ------------------------ -------------------- javascript:selectModel('68293')风格:RB3026 ------------------- ------------------------- javascript:selectModel('68320')风格:RB3044 -------- ------------------------------ javascript:selectModel('68460')/usr/lib/ruby/1.9.1/net /protocol.rb:146:in rescue in rbuf_fill': Timeout::Error (Timeout::Error) from /usr/lib/ruby/1.9.1/net/protocol.rb:140:inrbuf_fill'来自/usr/lib/ruby/1.9.1/net/protocol.rb:122:in readuntil' from /usr/lib/ruby/1.9.1/net/protocol.rb:132:inreadline'来自/usr/lib/ruby/1.9.1/net/http.rb :2562:在read_status_line' from /usr/lib/ruby/1.9.1/net/http.rb:2551:inread_new'中来自/usr/lib/ruby/1.9.1/net/http.rb:1319:in block in transport_request' from /usr/lib/ruby/1.9.1/net/http.rb:1316:incatch'来自/usr/lib/ruby/1.9.1/net/http.rb:1316:in transport_request' from /usr/lib/ruby/1.9.1/net/http.rb:1293:in请求来自/usr/lib/ruby/1.9.1/net/http.rb:1286:in block in request' from /usr/lib/ruby/1.9.1/net/http.rb:745:instart'来自/usr/lib/ruby/1.9.1/net/http.rb:1284:in …

"重要的是要指出模板的内容字段默认设置为null(因为Java在创建时与所有未初始化的对象字段一起使用)."

它来自"JavaSpaces Principles Patterns and Practice"一书

这是代码:

public class Message implements Entry {
  public String content;
  public Message() {
  }
}

我想知道这是否属实,因为我在互联网上的某个地方看到这不是真的吗？

目前我有SelectList写入ID,并在表单上显示FirstName.

ViewBag.Person = new SelectList(db.Person, "ID", "FirstName");

如何将FirstName和LastName连接到SelectList？就像是:

ViewBag.Person = new SelectList(db.Person, "ID", "FirstName & LastName");

假设有Foo服务,它有RESTful API.如果我想为它创建包装器:

bundle gem foo-api-client

然后它创建以下结构:

foo-api-client/Gemfile
foo-api-client/Rakefile
foo-api-client/LICENSE.txt
foo-api-client/README.md
foo-api-client/.gitignore
foo-api-client/foo-api-client.gemspec
foo-api-client/lib/foo/api/client.rb
foo-api-client/lib/foo/api/client/version.rb

我不需要单独的api模块,我想我应该离开它还是尝试改为:fooapi-client/lib/fooapi/client.rb

这有什么命名约定吗？

我已经打开了jQuery 1.7.1库并想学习代码,但我发现这些函数是以奇怪的方式声明的(对我而言).例如:

show: function() {
        //some code here
},

我学会了用这种方式定义函数:

function show() {
  //some code here
}

有人可以解释一下为什么show function不是第二种方式写的(就像大多数互联网上的教程一样)？

可能重复:
ruby数组元素分组

例.给定数组a:

a = [1, 2, 3]

它的长度是3所以我想打印所有2长度数组.这些是:

[1, 2]
[1, 3]
[2, 3]

我不知道Ruby中是否有一些方法可以获得子集数组.如果没有这样的方法,最有效的方法是实现这一点.

我正试图从当前时间开始计算小时,分钟和秒,并将其打印成"hourminutesecond"格式.例如"121103".但是当我尝试使用下一个代码时,没有打印前导零

irb(main):021:0> ct = Time.now
=> 2012-11-06 12:11:03 +0100
irb(main):022:0> "#{ct.hour}#{ct.min}#{ct.sec}"
=> 12113

输出为"12113",但我想要"121103".

是否有方法或选项.我可以用正则表达式提取它,但只是想知道是否有更简单的方法来做到这一点.

我正在尝试使用Capybara附加文件.输入元素是:

<input type="file" multiple="multiple" name="uploadfile[]" style="position: absolute; margin: 0px 0px 0px -175px; padding: 0px; width: 220px; height: 30px; font-size: 14px; opacity: 0; cursor: pointer; display: block; z-index: 2147483583; top: 3331px; left: 436px;">

附加文件的代码是:

attach_file 'uploadfile[]', '/home/user/image.jpg'

但它返回错误:

biske@biske:~/Documents/Aptana Studio 3 Workspace/AddPlace$ ruby
test.rb  [remote server]
file:///tmp/webdriver-profile20130223-30353-dw596v/extensions/fxdriver@googlecode.com/components/command_processor.js:7537:in
`fxdriver.preconditions.visible': Element is not currently visible and
so may not be interacted with
(Selenium::WebDriver::Error::ElementNotVisibleError)  from [remote
server]
file:///tmp/webdriver-profile20130223-30353-dw596v/extensions/fxdriver@googlecode.com/components/command_processor.js:10207:in
`DelayedCommand.prototype.checkPreconditions_'  from [remote server]
file:///tmp/webdriver-profile20130223-30353-dw596v/extensions/fxdriver@googlecode.com/components/command_processor.js:10226:in
`DelayedCommand.prototype.executeInternal_/h'   from [remote server]
file:///tmp/webdriver-profile20130223-30353-dw596v/extensions/fxdriver@googlecode.com/components/command_processor.js:10231:in
`DelayedCommand.prototype.executeInternal_'   from [remote server]
file:///tmp/webdriver-profile20130223-30353-dw596v/extensions/fxdriver@googlecode.com/components/command_processor.js:10171:in
`DelayedCommand.prototype.execute/<' …