EmbedScriptFromFile& RunScriptFromFile - QTP / UFT [英] EmbedScriptFromFile & RunScriptFromFile - QTP/UFT

问题描述

请帮我使用 EmbedScriptFromFile &用于在QTP / UFT中执行JS文件的 RunScriptFromFile 。

Please help me in using EmbedScriptFromFile & RunScriptFromFile for executing JS file in QTP/UFT.

我正在尝试使用JS获取N个值文件，并在数组中的QTP / UFT中接收相同的文件。为此，我必须了解 EmbedScriptFromFile & QTP / UFT帮助部分中的 RunScriptFromFile 。但是当我尝试使用示例代码时，我无法按预期进行。请帮助我解决这个问题

I'm trying to fetch N number of values using JS file, and receive the same in QTP/UFT in an array. For which, I have got to know about EmbedScriptFromFile & RunScriptFromFile in QTP/UFT help section. But when I've tried to use the sample code, I couldn't make it as expected. Please help me in this issue

我正在使用的Java脚本代码：

Java Script code I'm using:

function cloneArray(arr) {
          var ret = [];
          for (var i = 0; i < arr.length; ++i)
          ret.push(arr[i]);
       return ret;
 }

VB脚本，我正在使用：

VB Script, I'm using:

Browser("Home").Page("Home").EmbedScriptFromFile "C:\Users\Gopi\Desktop\CloneArray.js" 'Call the function and run the script that returns the array'
Set cloned = Browser("Home").Page("Home").RunScriptFromFile("cloneArray(C:\Users\Gopi\Desktop)")

执行这两行时遇到一些错误 - 对于第一行，我收到错误'对象不支持此属性或方法'。对于第二行，我收到的错误是参数不正确。请帮助

Getting some errors while executing these two line - for first line, I'm getting error as 'Object doesn't support this property or method'. And for the second line, I'm getting error as 'The parameter is incorrect'. Please help

2014年12月15日：我试过以下建议，它的工作原理！但最重要的是，我试图从JavaScript函数中获取数组值。

15-Dec-2014: I have tried the suggestions below and it worked! But on top of that, I'm trying to get the array values too from JavaScript function.

创建数组的代码：

function makeArray() {
    var myArray = new Array(4);
    for (var i = 0; i < myArray.length; i++){
        myArray[i] = i+1;
    }
    return myArray;
}

所以我想要实现的是，执行 makeArray（）通过传递创建数组并使用 cloneArray 方法创建QTP / UFT支持数组的函数makeArray（）将值/数组作为参数返回到 ConeArray（arr）。但是，当我尝试使用以下代码实现此目的时，我无法实现。

So exactly what I'm trying to achieve is, execute makeArray() function to create an array and create the QTP/UFT supporting array using cloneArray method by passing the makeArray() returning value/array as parameter to ConeArray(arr). But when I try to achieve this with following code, I couldn't make it.

Browser("Home").EmbedScriptFromFile "C:\Users\Gopi\Desktop\cloneArray.js"
'Set arr1 = Browser("Home").Page("Home").RunScriptFromFile "C:\Users\Gopi\Desktop\makeArray.js"
Set arr = Browser("Home").Page("Home").RunScript("cloneArray[C:\Users\Gopi\Desktop\makeArray.js]")
For i = 0 To arr.length - 1
    msgbox i & ": " & arr.item(i)
Next

EmbedScript &当我单独尝试时， RunScript 正常工作，但在尝试将另一个函数作为参数传递时无法使用。

EmbedScript & RunScript are working fine when I try separately, but not able to use while trying to pass another function as parameter.

我试图将这两个函数放在同一个JS文件中并调用函数，并尝试了其他一些可能性。但没有任何帮助，所以请帮助。

I have tried to have both the functions in same JS file and call the functions, and tried with a few other possibilities too. But nothing helped, so please help.

推荐答案

首先我们应该了解 RunScript 和 EmbedScript 函数（及其 FromFile 变体）。

First of all we should understand the RunScript and EmbedScript functions (and their FromFile variants).

• RunScript 是一种 Page 和 Frame ，它接受一个JavaScript并执行它，返回脚本的结果（通常是最后一个表达式运行）。


• EmbedScript 是一种浏览器的方法，它意味着确保此脚本在所有页面上运行code> s和此浏览器的框架。此函数不返回任何值，因为它的主要目的是将来运行（尽管它也会立即在 Page 和现有的 Frame s当前位于浏览器中。 可以使用EmbedScript 来使JavaScript函数可用于将来的 RunScript 使用。



• RunScript is a method of Page and Frame and it accepts a JavaScript and executes it, returning the result of the script (typically the last expression run).
• EmbedScript is a method of Browser and it means "make sure that this script is run on all Pages and Frames of this Browser from now on". This function returns no value since its main purpose is to run in the future (although it also runs immediately on the Page and existing Frames currently in the Browser). EmbedScript can be used in order to make a JavaScript function available for future RunScript use.

这些函数的普通版本接受一些JavaScript脚本，而 FromFile 变体采用文件名（或者是文件系统或在ALM中）并读取该文件。

The plain versions of these functions accept some JavaScript script while the FromFile variation takes a file name (either on the file system or in ALM) and reads that file.

关于你的问题 - 在你的第二行你正在预先形成一个 RunScriptFromFile 但是没有传递文件名，你似乎在传递一个脚本（为此你应该使用 RunScript ）。另外，您传递给 cloneArray 的参数不是有效的JavaScript值。

Regarding your question - on your second line you're preforming a RunScriptFromFile but aren't passing a file name, you seem to be passing a script (for this you should be using RunScript). Additionaly the parameter you're passing to cloneArray is not an a valid JavaScript value.

如果您想要它是一个字符串，你应该把它放在引号中，无论如何看起来你期待一个数组，所以也许你打算这样做：

If you want it to be a string you should put it in quotes, in any case it looks like you're expecting an array so perhaps you meant to do this:

Set cloned = Browser("Home").Page("Home").RunScript("cloneArray(['Users', 'Gopi'])")

无论如何将JavaScript数组传递给VBScript是有问题的， .length 属性工作正常但索引编制进入数组是一个问题（可能是因为JavaScript使用方括号，而VBScript使用括号）。

In any case it's problematic to pass JavaScript arrays into VBScript, the .length property works fine but indexing into the array is a problem (perhaps due to the fact that JavaScript uses square brackets while VBScript uses parentheses).

数组问题的解决方法可能是这样的

A workaround for the array problem could be something like this

// wrapArray.js
function wrapArray(array) {
    return { 
        length: array.length,
        item: function(index) {
            return array[index];
        }
    };
}

然后你可以在UFT / QTP中使用以下内容。

Then you can use the following in UFT/QTP.

Browser("B").EmbedScriptFromFile "C:\wrapArray.js"
Set arr = Browser("B").Page("P").RunScript("wrapArray(['answer', 42])")
For i = 0 To arr.length - 1
    Print i & ": " & arr.item(i)
Next

输出：

0：回答

1:42

0: answer
1: 42

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