我有一个简单的 HTML 页面 ( ratings.html)，我正在尝试使用 HtmlUnit 对其进行测试。当我将其加载到浏览器中并手动执行时，我正在测试的操作会起作用。但是，当我尝试使用 HtmlUnit 对其进行测试时，似乎对 getElementById(或 getInputByName)的调用过多会导致页面上的 JavaScript 重新初始化。
在 AddRating.scala 测试中，对 page.addRating 的前两次调用有效，但第三次调用失败，因为它在页面上找不到“rating3”元素。经过大量调试后，我发现 ratingCount 由于某种原因重置回 0。
请参阅下面我的评论(在 //****** 部分之间)以了解问题所在。
还有其他人经历过这种行为或对如何处理它有任何建议吗？谢谢!
ratings.html(添加“评级”的 HTML 页面):
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<script src="http://ajax.microsoft.com/ajax/jquery.templates/beta1/jquery.tmpl.min.js"></script>
</head>
<body>
<form name="new-rating" method="post" action="/add-rating">
<table>
<tr>
<td valign="top">Ratings:</td>
<td>
Should be ordered from best to worst.<br>
<a id="add-rating" href="#">add rating</a></td>
</tr>
<tr>
<td></td>
<td>
<button name="submit-button" type="submit">Add Rating</button>
</td>
</tr>
</table>
</form>
<h2>All Ratings</h2>
<ul id="ratings">
</ul>
<script>
$(window).load(function(){
// display ratings
$.getJSON("/ratings", function(data)
{
var items = $.map(data, function(el) {
var ratingsTable = "";
if (el.ratings.length > 0)
{
$.tmpl("<li><table><tr><th>Rating</th></tr>{{each ratings }}<tr><td>${$value.label}</td></tr>{{/each}}</table></li>", el).appendTo("#ratings");
}
});
});
// add rating action
// ***********
var ratingCount = 0; // THIS GETS RE-INITIALIZED TO 0 AFTER TOO MANY getElementById or getElementByName calls.
// ***********
$('#add-rating').click(function()
{
ratingCount += 1;
$('#remove-rating').show();
$.tmpl("<span id='rating${ratingId}'><input name='rating${ratingId}'><br></span>",
{ratingId: ratingCount}).insertBefore('#add-rating');
if(ratingCount >= 5) { $('#add-rating').hide(); }
});
});
</script>
</body>
</html>
RatingsPage.scala(Scala 接口(interface)到 HTML 页面):
package portal
import com.gargoylesoftware.htmlunit.WebClient
import com.gargoylesoftware.htmlunit.html._
import infrastructure.SuperHtmlUnitConversions._
import infrastructure.WaitFor
class RatingsPage(page: HtmlPage)
{
val newRatingForm: HtmlForm = page.getFormByName("new-rating")
var ratingCount = 0
def submit(): RatingsPage =
{
val page = newRatingForm.getButtonByName("submit-button").click[HtmlPage]()
ratingCount = 0
new RatingsPage(page)
}
def addRating(rating: String)
{
page.getElementById("add-rating").click()
ratingCount += 1
newRatingForm.getInputByName("rating" + ratingCount).asInstanceOf[HtmlInput].setValueAttribute(rating)
}
def asText(): String = page.asText
def asXml(): String = page.asXml
}
AddRating.scala(Scala HtmlUnit 测试失败):
package portal
import java.util.Date
import org.scalatest.FunSuite
import org.scalatest.junit.JUnitRunner
import org.junit.runner.RunWith
import org.scalatest.matchers.ShouldMatchers
import com.gargoylesoftware.htmlunit.WebClient
import com.gargoylesoftware.htmlunit.html._
import infrastructure.WaitFor
@RunWith(classOf[JUnitRunner])
class AddRating extends FunSuite with ShouldMatchers
{
test("add ratings")
{
val client = new WebClient()
val index = new PortalIndexPage(client)
var page = index.goToRatingsPage()
page.addRating("Buy") // WORKS
page.addRating("Sell") // WORKS
// *********
page.addRating("Sell") // FAILS! Can't find element with "rating3" name!
// *********
page = page.submit()
WaitFor("rating to show up", ()=>page.asXml.contains("Sell"))
page.asText should include ("Buy")
client.closeAllWindows()
}
}
最佳答案
我的猜测是，您需要让 anchor 击处理程序“返回 false”。
这应该可以防止浏览器重新加载页面的行为。
关于java - HtmlUnit 的 HtmlPage.getElementById 似乎在多次调用后重新初始化 JavaScript，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6364675/