1

我在 Windows 7 64 位上使用 WatiN 2.1.0 (C#) 和 IE 9。

我的问题是调用这个函数 

ie.FileUpload(Find.ByName(someRegExp)).Set(fileName);

非常慢。
我的意思是很好地找到了对象。此代码打开文件对话框，但在很长一段时间后开始输入文件名，大约 3 到 5 分钟，比 WatiNs 超时时间长得多。在剩下的测试工作正常之后。

有什么治疗方法吗？这种巨大的延迟非常烦人，当有更多带有文件上传的测试用例时，它会显着延长测试持续时间。

4

3 回答 3

2

好的，这不是每个说的 Watin 解决方案，但我们遇到了完全相同的问题；我们的文件浏览器测试占用了大量的总测试时间，我通过踢掉 Watin 来进行文件上传解决了这个问题，而是使用了（可怕的）UIAutomation 框架。

示例用法：

    public CustomFileUpload FileUpload
    {
        get
        {
            return new CustomFileUpload(WebBrowser.Current.hWnd, "_Layout");
            //return Document.FileUpload(Find.ByName("file"));
        }
    }

您必须在测试项目中添加对“UIAutomationClient”和“UIAutomationTypes”的引用。下面的解决方案不是通用的，因此您可能需要对其进行调整以满足您的需求。

public class CustomFileUpload
{
    private readonly IntPtr _browserHandle;
    private readonly string _tabHeader;

    public CustomFileUpload(IntPtr browserHandle, string tabHeader)
    {
        _browserHandle = browserHandle;
        _tabHeader = tabHeader;
    }

    public void Set(string filePath)
    {
        Automate(filePath);
    }

    private void Automate(string filePath)
    {
        AutomationElement browser = AutomationElement.FromHandle(_browserHandle);

        AutomationElement tab = FindTab(browser, _tabHeader);


        // IE10 adds the name (or value?) "Browse..." to the upload-button. Need to hack it :)
        AutomationElement uploadButton = tab.FindFirst(TreeScope.Children,
                                                            new AndCondition(
                                                                new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button),
                                                                new PropertyCondition(AutomationElement.NameProperty, "Browse..."))) ??
                                                                tab.FindFirst(TreeScope.Children,
                                                        new AndCondition(
                                                            new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button),
                                                            new PropertyCondition(AutomationElement.NameProperty, "")));

        ClickButton(uploadButton);

        var openFileDialog = WaitUntilOpenFileDialogAvailable();

        var valuePattern = FindFileNameTextBox(openFileDialog).GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;

        if (valuePattern == null)
            throw new InvalidOperationException("Can't set the file path");

        valuePattern.SetValue(filePath);

        SetFocusToSomethingElse(browser);

        var okButton = WaitUntilOkButtonLoaded(openFileDialog);

        ClickButton(okButton);
    }

    private static AutomationElement FindTab(AutomationElement browser, string tabHeader)
    {
        return browser.FindFirst(TreeScope.Descendants,
                                 new AndCondition(
                                     new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Pane),
                                     new PropertyCondition(AutomationElement.NameProperty, tabHeader)));
    }

    private static void SetFocusToSomethingElse(AutomationElement elementWhichShouldNotBeSelected)
    {
        do
        {
            foreach (AutomationElement element in AutomationElement.RootElement.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.IsKeyboardFocusableProperty, true)))
            {
                if (element != elementWhichShouldNotBeSelected)
                {
                    element.SetFocus();
                    return;
                }
            }

        } while (true);
    }

    private static AutomationElement WaitUntilOkButtonLoaded(AutomationElement openFileDialog)
    {
        AutomationElement okButton;

        do
        {
            okButton = openFileDialog.FindFirst(TreeScope.Children,
                                                new AndCondition(
                                                    new PropertyCondition(AutomationElement.IsContentElementProperty, true),
                                                    new PropertyCondition(AutomationElement.IsControlElementProperty, true),
                                                    new PropertyCondition(AutomationElement.NameProperty, "Open"),
                                                    new PropertyCondition(AutomationElement.IsInvokePatternAvailableProperty, true)
                                                    ));

        } while (okButton == null);

        return okButton;
    }

    private static AutomationElement WaitUntilOpenFileDialogAvailable()
    {
        AutomationElement openFileDialog = null;

        do
        {

            AutomationElement openFileDialogContainer = AutomationElement.RootElement.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "Alternate Modal Top Most"));

            if (openFileDialogContainer != null)
                openFileDialog = openFileDialogContainer.FindFirst(TreeScope.Children, Condition.TrueCondition);
        } while (openFileDialog == null);

        return openFileDialog;
    }

    private static void ClickButton(AutomationElement button)
    {            
        var clickPattern = button.GetCurrentPattern(InvokePattern.Pattern) as InvokePattern;

        if (clickPattern == null)
            throw new InvalidOperationException("Can't find the buttons click pattern");

        clickPattern.Invoke();
    }

    private static AutomationElement FindFileNameTextBox(AutomationElement openFileDialog)
    {
        AutomationElement findElementToTypePathInto;

        do
        {
            findElementToTypePathInto = openFileDialog.FindFirst(TreeScope.Descendants, new AndCondition(new PropertyCondition(AutomationElement.NameProperty, "File name:"), new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit)));
        } while (findElementToTypePathInto == null);

        return findElementToTypePathInto;
    }

}
于 2012-11-27T11:13:00.630 回答
1

我有一个稍微简单的解决方案（再次依赖自动化，但仅用于选择文件）我在文件输入上使用 .ClickNoWait() 不会导致浏览器挂起。

然后我写了一个扩展方法来设置我要选择的文件：

public static void UploadFile(this Browser browser, string uploadPath)
{
    var trw = new TreeWalker(Condition.TrueCondition);
    var mainWindowElement = trw.GetParent(AutomationElement.FromHandle(browser.hWnd));

    // Wait for the dialog to open
    Thread.Sleep(1000);

    // Get the select dialog
    var selectDialogElement = mainWindowElement.FindFirst(TreeScope.Descendants, 
        new PropertyCondition(AutomationElement.NameProperty, "Choose File to Upload"));

    // Get the file name box and set the path
    var selectTextElement = selectDialogElement.FindFirst(
        TreeScope.Descendants,
        new AndCondition(new PropertyCondition(AutomationElement.NameProperty, "File name:"),
            new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit)));
    var selectValue = (ValuePattern)selectTextElement.GetCurrentPattern(ValuePattern.Pattern);
    selectValue.SetValue(uploadPath);

    // Get the open button and click it
    var openButtonElement = selectDialogElement.FindFirst(TreeScope.Descendants,
        new AndCondition(new PropertyCondition(AutomationElement.NameProperty, "Open"),
            new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button)));
    var openButtonClick = (InvokePattern)openButtonElement.GetCurrentPattern(InvokePattern.Pattern);
    openButtonClick.Invoke();
}

示例用法：

var browser = (IE)Document.DomContainer;     
Document.FileUpload(Find.BySelector("#FileUpload")).ClickNoWait();
browser.UploadFile("c:\\myfile.txt");
Document.Button(Find.BySelector("#submit")).Click();

UIAutomation 将从调用 UploadFile(filepath) 接管并找到对话窗口，并像用户那样填写表单。

于 2014-02-03T11:46:19.337 回答
0

在 WatiN 开始在文件上传对话框中输入文件名之前，我还经历了 3 到 5 分钟的延迟。

每当在 IE 中打开开发人员工具窗格时，这似乎都会发生在我身上。当它未打开时，立即开始输入。

关于默认浏览器和类似弹出窗口的提示似乎也会导致延迟。

于 2013-02-07T14:43:31.867 回答