WebDriver does not support compound class names and will throw an error

I have a function that can calculate the total number of elements within divs and return this count.

 public int getNumberOfOpenBets() {

     openBetsSlip = driver.findElement(By.id("form_open_bets"));
     openBets = openBetsSlip.findElements(By.className("cashout_noCash"));
     return openBets.size();
 }

Here is the source code for the page:

<form id="form_open_bets" method="post" name="form_open_bets">
    <input type="hidden" value="" name="action">
    <input type="hidden" value="" name="bet_id">
    <input type="hidden" value="" name="cashout_price">
    <input id="target_page" type="hidden" value="" name="target_page">
    <div id="By.id" class="slipWrapper ">
        <div id="openBets_header"></div>
        <div id="cashout_1626" class="cashout_noCash">
            <div id="cashout_1625" class="cashout_noCash">
                <div id="cashout_1615" class="cashout_noCash">
                    <div id="cashout_1614" class="cashout_noCash">
                        <div id="cashout_1613" class="cashout_noCash">
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</form>

WebDriver is throwing the following error: Compound class names are not supported. Consider searching for one class name and filtering the results or use CSS selectors.

org.openqa.selenium.InvalidSelectorException: Compound class names are not supported. Consider searching for one class name and filtering the results or use CSS selectors.
For documentation on this error, please visit: http://seleniumhq.org/exceptions/invalid_selector_exception.html
Build info: version: '2.31.0', revision: '1bd294d185a80fa4206dfeab80ba773c04ac33c0', time: '2013-02-27 13:51:26'
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_17'
Driver info: driver.version: unknown
    at org.openqa.selenium.By.className(By.java:131)
    at elements.betslip.Betslip.getNumberOfOpenBets(Betslip.java:136)
    at testSomething(SomethingTest.java:117)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

EDIT:

Turns out, WebDriver does not support spaces in class names. Could you please provide guidance on using CSS selectors in this case to locate the elements?

javacssseleniumwebdriverselenium-webdriver

Answer №1

The outcome is just as anticipated. When your class name contains a space, WebDriver interprets it as a "compound selector". You have two options: either eliminate the space in your By.className() locator, which will still locate the desired elements; or switch to using CSS selectors, such as 

By.cssSelector(".cashout_noCash")
, which provide greater flexibility for similar functions. This aligns perfectly with what the error message conveys.

Answer №2

To create compound class name selectors, simply remove any spaces between the classes.

For instance, if your div looks like this:

<div class="red-circle large-border thin"></div>

Your selector should be:

driver.findElement(By.cssSelector("red-circle.large-border.thin"));

Answer №3

For those in need of a Ruby solution, here is what I discovered: some solutions that worked for Java may not work on my machine for Ruby, or they simply do not apply to Ruby (though I am uncertain which scenario it is).

If the HTML looks like this:

<a class="button orange-bg" href="http://www.MyCarmelHome.com" target="_blank">
     access web portal
</a>

To locate this element, use the following format:

logInBtn = driver.find_element(:css, ".button.orange-bg")

I opted for this method because the following approaches did not yield results:

  1. Replacing spaces with '.' and using css selector (must start with a period).

  2. Eliminating spaces in compound class names and employing the class name locator.

Answer №4

driver.findElements(By.cssSelector(".withdraw_noMoney"));

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