java - Selenium 新的等待条件不起作用被迫使用 Thread.Sleep

Question

所以我注意到，selenium 在很多情况下速度非常快，以至于无法捕获 Web 应用程序上菜单滑动的转换。除非我将线程 sleep (我在代码中绝对讨厌)，否则下面的示例将不会运行...这是唯一的方法吗？这里是变量设置和检查元素是否存在的方法，实际测试在下一组代码中。

    private static By awayButtonLocator = By.cssSelector("button.status.away");
    private static By awayStatusIconLocator = By.cssSelector("div.info.status-away");

    private static boolean isElementPresent(By targetElement){
        Boolean isPresent = driver.findElements(targetElement).size() > 0;
        if(isPresent){
            return true;
        }else{
            return false;
        }

    }

因此，澄清下面的@test按预期工作。然而，thread.sleep 必须在那里，尽管 WebDriverWait 为 10 秒，这是我不想要的。我什至尝试了预期的条件 elementToBeClickable 但这不起作用，仍然需要调用 sleep 。因此，在这种情况下，我必须故意减慢代码速度，以便使用线程 sleep 捕获元素？？

    @Test
    public void setAway() throws Exception {
        Thread.sleep(500);
        new WebDriverWait(driver, 10).until(ExpectedConditions.presenceOfElementLocated(awayButtonLocator)).click();
        Assert.assertTrue(isElementPresent(awayStatusIconLocator));
    }

跟踪输出:

org.openqa.selenium.NoSuchElementException: An element could not be located on the page using the given search parameters. (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 17 milliseconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: 'unknown', revision: '1969d75', time: '2016-10-18 09:43:45 -0700'
System info: host: 'Adrians-iMac.local', ip: '10.0.2.15', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.12.1', java.version: '1.8.0_111'
Driver info: org.openqa.selenium.safari.SafariDriver
Capabilities [{applicationCacheEnabled=true, rotatable=false, databaseEnabled=true, handlesAlerts=true, version=12602.2.14.0.5, cleanSession=true, platform=MAC, nativeEvents=true, locationContextEnabled=false, webStorageEnabled=true, browserName=safari, javascriptEnabled=true, cssSelectorsEnabled=true}]
Session ID: FE763803-D4F9-485F-A176-847A5E9911CA
*** Element info: {Using=css selector, value=div.flex-nav.section.header.div.h4}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:216)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:168)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:635)
    at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:368)
    at org.openqa.selenium.remote.RemoteWebDriver.findElementByCssSelector(RemoteWebDriver.java:465)
    at org.openqa.selenium.By$ByCssSelector.findElement(By.java:430)
    at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:360)
    at myPackages.menuSuite.myAccountTest.checkMenuExist(myAccountTest.java:53)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Answer 1

我建议您还在 @Before Hook 中的某个位置为您的驱动程序设置隐式等待超时:

 driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);