webdriver - org.openqa.selenium.WebDriverException: ReferenceError: jQuery is not defined

Question

Hi I am trying to write autonomous test using Webdriver for firefox profile, I enabled the javascript equal to true while creating Driver object.

In some view jquery responses late so for that I tried to put one check in webdriver code to wait For JQuery Processing

Code snippet for waitForJQueryProcessing:

public static boolean waitForJQueryProcessing(WebDriver driver,
        int timeOutInSeconds) {
    boolean jQcondition = false;
    try {
        new WebDriverWait(driver, timeOutInSeconds) {
        }.until(new ExpectedCondition<Boolean>() {

            @Override
            public Boolean apply(WebDriver driverObject) {
                return (Boolean) ((JavascriptExecutor) driverObject)
                        .executeScript("return jQuery.active == 0");
            }
        });
        jQcondition = (Boolean) ((JavascriptExecutor) driver)
                .executeScript("return jQuery.active == 0");
        return jQcondition;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return jQcondition;
}

But the above code is rising exception

Stacktrace

org.openqa.selenium.WebDriverException: ReferenceError: jQuery is not defined
Command duration or timeout: 10 milliseconds
Build info: version: '2.32.0', revision: '6c40c187d01409a5dc3b7f8251859150c8af0bcb', time: '2013-04-09 10:39:28'
System info: os.name: 'Windows 7', os.arch: 'x86', os.version: '6.1', java.version: '1.6.0_17'
Session ID: 58ad81d0-53f9-4862-a916-a1900efdc9c0
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{platform=XP, acceptSslCerts=true, javascriptEnabled=true, browserName=firefox, rotatable=false, locationContextEnabled=true, version=21.0, cssSelectorsEnabled=true, databaseEnabled=true, handlesAlerts=true, browserConnectionEnabled=true, nativeEvents=true, webStorageEnabled=true, applicationCacheEnabled=true, takesScreenshot=true}]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:187)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:554)
    at org.openqa.selenium.remote.RemoteWebDriver.executeScript(RemoteWebDriver.java:463)
    at com.iclinica.utils.WaitTool$9.apply(WaitTool.java:309)
    at com.iclinica.utils.WaitTool$9.apply(WaitTool.java:1)
    at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:208)
    at com.iclinica.utils.WaitTool.waitForJQueryProcessing(WaitTool.java:304)
    at com.iclinica.globals.FirefoxCustomWebdriver.findElement(FirefoxCustomWebdriver.java:14)
    at com.iclinica.page.studyconfig.studydetails.StudyDetailsPage.studydetails(StudyDetailsPage.java:20)
    at com.iclinica.studyconfig.AddPatients.teststudycreation(AddPatients.java:168)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
    at org.testng.TestRunner.privateRun(TestRunner.java:767)
    at org.testng.TestRunner.run(TestRunner.java:617)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
    at org.testng.SuiteRunner.run(SuiteRunner.java:240)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
    at org.testng.TestNG.run(TestNG.java:1057)
    at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)

I googled for setting jquery file path in webdriver object, but didn't find any result

I hope it makes sense.

Thanks Gaurav

Answer 1

Use this instead:

public static boolean waitForJQueryProcessing(WebDriver driver,
        int timeOutInSeconds) {
    boolean jQcondition = false;
    try {
        new WebDriverWait(driver, timeOutInSeconds) {
        }.until(new ExpectedCondition<Boolean>() {

            @Override
            public Boolean apply(WebDriver driverObject) {
                return (Boolean) ((JavascriptExecutor) driverObject)
                        .executeScript("return jQuery.active == 0");
            }
        });
        jQcondition = (Boolean) ((JavascriptExecutor) driver)
                .executeScript("return window.jQuery != undefined && jQuery.active === 0");
        return jQcondition;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return jQcondition;
}

The change from your original code snippet is:

.executeScript("return window.jQuery != undefined && jQuery.active === 0");

This will make sure that your jQuery object is defined before checking if there are any active jQuery processes. Selenium runs fast and can sometimes make queries to jQuery before it has had a chance to load into the page you are testing.