Getting UnexpectedJavascriptExecutionException: while using getEval

[Rohit]

I am getting UnexpectedJavascriptExecutionException when trying to use
getEval method while using WebDriverBackedSelenium. it works fine if i
use only selenium.

It also works fine if i use runScript() instead of getEval() method.

here is the code sample

WebDriver driver = new InternetExplorerDriver();

String baseUrl = "http://www.google.com";

final Selenium selenium = new WebDriverBackedSelenium(driver,
baseUrl);

selenium.open("");
selenium.getEval("window.document.getElementsByName('q')[0].tagType");

Stack Trace
--------------------
Exception in thread "main" I03:32:37:420 .\IEThread.cpp(655)
-2147352567 [Exception occurred.]: Exception message was: Expected
')': (function() { return function(){return eval
('window.document.getElementsByName('q')[0].tagType');};})();
org.openqa.selenium.ie.UnexpectedJavascriptExecutionException: Cannot
execute script
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1',
java.version: '1.6.0_14'
Driver info: driver.version: ie
at org.openqa.selenium.ie.ErrorHandler.verifyErrorCode
(ErrorHandler.java:68)
at org.openqa.selenium.ie.InternetExplorerDriver.executeScript
(InternetExplorerDriver.java:163)
at
org.openqa.selenium.internal.seleniumemulation.GetEval.handleSeleneseCommand
(GetEval.java:56)
at
org.openqa.selenium.internal.seleniumemulation.GetEval.handleSeleneseCommand
(GetEval.java:25)
at
org.openqa.selenium.internal.seleniumemulation.SeleneseCommand.apply
(SeleneseCommand.java:30)
at org.openqa.selenium.WebDriverCommandProcessor.execute
(WebDriverCommandProcessor.java:270)
at org.openqa.selenium.WebDriverCommandProcessor.getString
(WebDriverCommandProcessor.java:241)
at com.thoughtworks.selenium.DefaultSelenium.getEval
(DefaultSelenium.java:461)

Can somebody help me solve this issue

cheers,
Rohit

[Steve CCRP]

Here's a guess. Looking at the stack trace, I think you should try
using double quotes:

selenium.getEval("window.document.getElementsByName(\"q\")
[0].tagType");

Tell us how it goes.

-Steve

[Rohit Maurya]

Hi,

Thanks for the suggestion it is working fine after adding the double quotes.

Cheers

Rohit

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[Rohit Maurya]

Hi,

is there any specific reason why we need to add the double quotes. can you please elaborate on the reason of why it was failing. as the same thing works if i do  selenium.runScript() or using JavascriptExecutor without using double quotes.

-Rohit

[Daniel Wagner-Hall]

You shouldn't have to use double quotes, it's a bug in WebDriver.
I've just filed it as a bug so that we remember to fix it:
http://code.google.com/p/selenium/issues/detail?id=292