在使用geb&时，在页面之间传递状态斯波克 [英] Passing state between pages when using geb & spock

问题描述

在下面的例子中（摘自 Geb Book ），我们点击一​​个按钮，将我们带到另一个页面。

In the example below (Taken from the Book of Geb), we're clicking on a button that takes us to another page.

class GoogleHomePage extends Page {
    static url = "http://google.com"
    static at = { 
        title == "Google" 
    }
    static content = {
        searchField { $("input[name=q]") }
        searchButton(to: GoogleResultsPage) { $("input[value='Google Search']") }
    }
}

Browser.drive(GoogleHomePage) {
    searchField.value("Chuck Norris")
    searchButton.click()
    assert at(GoogleResultsPage)
    assert resultLink(0).text() ==~ /Chuck/
}

如何在转到另一个页面时通过状态？例如，用户已经选择了这种语言，在下一页中，我希望页面可以使用该语言。更通用的例子：

How can we pass state when going to another page? eg The user has selected this language, in the next page, I expect the page to be in that language. A more generic example:

import geb.*
import grails.plugin.geb.GebSpec

class GoogleHomePage extends Page {
   static url = "http://google.com"
   static at = { title == "Google" }
   static content = {
       searchField { $("input[name=q]") }
       searchButton(to: GoogleResultsPage, searchTerm:searchField.value()) { $("input[value='Google Search']") }
   }
}

class GoogleResultsPage extends Page {

  def searchTerm

  static at = {
    title == "${searchTerm} - Google Search"
  }
}

class MainFunctionalSpec extends GebSpec {

 def "Google search"() {
   when:
   to GoogleHomePage

   then:
   searchField.value("Chuck Norris")
   searchButton.click()
   assert at(GoogleResultsPage)
 }
}

这段代码有两个问题， 没有这样的属性：searchField for class：G oogleHomePage在searchButton.click（）时试图填充searchTerm。即使我对传递的内容进行了硬编码，GoogleResultsPage.searchTerm也是null，并且at声明失败。有任何想法吗？

This code has 2 problems, I get a "No such property: searchField for class: GoogleHomePage" on searchButton.click() when trying to populate searchTerm. Even if I hardcode what gets passed, GoogleResultsPage.searchTerm is null and the at assert fails. Any ideas?

推荐答案

这对于0.4来说并不可行。模板定义的映射选项成为该模板的选项。更重要的是，内容模板是在静态上下文中定义的，但是它们的闭包定义是在实例上下文中进行评估的。最终的结果是，从这一点无法访问实例状态。

This is not really possible with 0.4. The map options to template definitions become the options to that template. What is more, content templates are defined in a static context, but their closure definitions are evaluated in an instance context. The end result being that it's impossible to access instance state from that point.

解决方案是使用0.5中的新生命周期钩子：

The solution is to use the new lifecycle hooks in 0.5:

http ：//bamboo.ci.codehaus.org/browse/GEB-MASTERDEFAULTS/latest/artifact/Manual/pages.html#lifecycle_hooks

class GoogleHomePage extends Page {
    static url = "http://google.com"
    static at = { title == "Google" }
    static content = {
        searchField { $("input[name=q]") }
        searchButton(to: GoogleResultsPage, searchTerm:searchField.value()) { $("input[value='Google Search']") }
    }

    def onUnload(GoogleResultsPage nextPage) {
        nextPage.searchTerm = searchField.value()
    }
}

class GoogleResultsPage extends Page {
    def searchTerm
    static at = {
        title == "${searchTerm} - Google Search"
    }
}

可从codehaus快照资源库中下载最新的0.5-SNAPSHOT版本。

This is available in that latest downloadable 0.5-SNAPSHOT versions from the codehaus snapshot repository.

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