org.openqa.selenium.WebDriverException: unknown error: cannot focus element
我的步骤:
1.Start Hub
D:\Selenium>java -jar selenium-server-standalone-2.35.0.jar -role hub
2.Start Node 1
D:\Selenium>java -jar selenium-server-standalone-2.35.0.jar -role wd -port 5556 -hub ip/grid/register -Dwebdriver.chrome.driver=D:\Selenium\chromedriver.exe -browser "browserName=chrome,maxInstances=1,platform=WINDOWS"
3.启动节点2
C:\Selenium>java -jar selenium-server-standalone-2.35.0.jar -role wd -hub ip/grid/register -Dwebdriver.chrome.driver=C:\Selenium\chromedriver.exe -browser "browserName=chrome,maxInstances=1,platform=WINDOWS"
4.然后运行测试 的testng.xml
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="LoginTest" verbose="4" parallel="methods" thread-count="10">
<test name="Login">
<classes>
<class name="com.ms.gridDemo.test.LoginTest">
</class>
</classes>
</test>
<test name="Login2">
<classes>
<class name="com.ms.gridDemo.test.LoginTest2">
</class>
</classes>
</test>
测试案例库:
package com.ms.gridDemo.test;
import java.net.MalformedURLException;
import java.net.URL;
import junit.framework.Assert;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.AfterMethod;
import com.google.common.base.Function;
public class AbstractTest {
private WebDriver driver = null;
private String baseURL;
public void login() throws InterruptedException {
driver.get(baseURL);
waitForElementVisible(driver,By.id("email"));
WebElement emailElem = driver.findElement(By.id("email"));
WebElement passwordElem = driver.findElement(By.id("password"));
emailElem.clear();
emailElem.sendKeys("jeff.liang@ms.com");
passwordElem.clear();
passwordElem.sendKeys("!Q@W3e4r");
WebElement submitEl = driver.findElement(By.id("submit_btn"));
submitEl.click();
Thread.sleep(2000);
Assert.assertFalse("Login failed.",IsTextPresent(driver,"The Email address or password you entered is incorrect."));
;
}
@BeforeMethod
public void beforeMethod() {
DesiredCapabilities dc = DesiredCapabilities.chrome();
URL url = null;
try {
url = new URL("http://localhost:4444/wd/hub");
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
driver =new RemoteWebDriver(url, dc);
driver.manage().window().maximize();
baseURL ="https://mercury-uat.morningstar.com";
}
@AfterMethod
public void afterMethod() {
driver.quit();
}
public static WebElement waitForElementVisible(WebDriver driver, final By locator) {
Function<WebDriver, WebElement> waitFn = new Function<WebDriver, WebElement>() {
@Override
public WebElement apply(WebDriver driver) {
try {
WebElement el = driver.findElement(locator);
if (el.isDisplayed()) {
return el;
}
} catch (Exception e) {
}
return null;
}
};
WebDriverWait wait = new WebDriverWait(driver,120,300);
return wait.until(waitFn);
}
public boolean IsTextPresent(WebDriver driver, String text) {
try {
return driver.getPageSource().contains(text);
} catch (Exception e) {
return false;
}
}
}
=============================================== ============================
测试类1:
package com.ms.gridDemo.test;
import org.testng.annotations.Test;
import com.ms.gridDemo.test.AbstractTest;
public class LoginTest extends AbstractTest {
@Test
public void test1() throws InterruptedException {
login();
}
@Test
public void test2() throws InterruptedException {
login();
}
@Test
public void test3() throws InterruptedException {
login();
}
@Test
public void test4() throws InterruptedException {
login();
}
@Test
public void test5() throws InterruptedException {
login();
}
}
=============================================== =================
测试类2
package com.ms.gridDemo.test;
import org.testng.annotations.Test;
import com.ms.gridDemo.test.AbstractTest;
public class LoginTest2 extends AbstractTest {
@Test
public void test6() throws InterruptedException {
login();
}
@Test
public void test7() throws InterruptedException {
login();
}
@Test
public void test8() throws InterruptedException {
login();
}
@Test
public void test9() throws InterruptedException {
login();
}
@Test
public void test10() throws InterruptedException {
login();
}
}
答案 0 :(得分:3)
您的司机对象在您的班级。每个测试运行时,相同的对象都会被初始化。当你按顺序运行时,这是正常的,因为在一个时间点只使用一个驱动程序。但是在并行方法运行的情况下,第二次测试开始后,第一个驱动程序引用就会丢失,第一次测试也会开始查看第二个测试的驱动程序引用。尝试探索Threadlocal进行并行运行。