org.openqa.selenium.WebDriverException：使用Selenium和ChromeDriver无法访问chrome

Question

我使用TestNG创建了一个测试类，在这个类中我定义了5个测试方法。当我运行测试时，TestNG控制台显示已经执行了总共5个中的3个场景（参见下图）。 registroNovo和tabulacaoTratamento方法未执行。 当我关闭浏览器（Chrome）时，TestNG控制台会显示以下错误屏幕。

Eclipse控制台显示以下错误消息：

.mjs

有没有人见过这种错误？

基本上我创建了4个类：

BaseTest 类，其中包含所有测试类通用的所有方法：

 org.openqa.selenium.WebDriverException: chrome not reachable
  (Session info: chrome=67.0.3396.87)
  (Driver info: chromedriver=2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab),platform=Windows NT 6.1.7601 SP1 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 0 milliseconds
Build info: version: '3.8.0', revision: '924c4067df', time: '2017-11-30T11:36:59.109Z'
System info: host: 'RJO-BCC-C2A-H21', ip: '10.5.79.38', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_131'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities {acceptInsecureCerts: false, acceptSslCerts: false, applicationCacheEnabled: false, browserConnectionEnabled: false, browserName: chrome, chrome: {chromedriverVersion: 2.40.565498 (ea082db3280dd6..., userDataDir: C:\Users\lsnpere\AppData\Lo...}, cssSelectorsEnabled: true, databaseEnabled: false, handlesAlerts: true, hasTouchScreen: false, javascriptEnabled: true, locationContextEnabled: true, mobileEmulationEnabled: false, nativeEvents: true, networkConnectionEnabled: false, pageLoadStrategy: normal, platform: XP, platformName: XP, rotatable: false, setWindowRect: true, takesHeapSnapshot: true, takesScreenshot: true, unexpectedAlertBehaviour: , unhandledPromptBehavior: , version: 67.0.3396.87, webStorageEnabled: true}
Session ID: 32d0291ab5ecaa1141f9997771edcd95
    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:214)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
    at org.openqa.selenium.remote.http.JsonHttpResponseCodec.reconstructValue(JsonHttpResponseCodec.java:40)
    at org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:80)
    at org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:44)
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:164)
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:658)
    at org.openqa.selenium.remote.RemoteWebDriver$RemoteTargetLocator.alert(RemoteWebDriver.java:987)
    at org.openqa.selenium.support.ui.ExpectedConditions$28.apply(ExpectedConditions.java:808)
    at org.openqa.selenium.support.ui.ExpectedConditions$28.apply(ExpectedConditions.java:804)
    at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:208)
    at page.RegistroNovo.registroNovo(RegistroNovo.java:25)
    at test.ValidarFaturamentoRoamingTest.registroNovo(ValidarFaturamentoRoamingTest.java:34)
    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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:816)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1124)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
    at org.testng.TestRunner.privateRun(TestRunner.java:774)
    at org.testng.TestRunner.run(TestRunner.java:624)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:359)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:354)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:312)
    at org.testng.SuiteRunner.run(SuiteRunner.java:261)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1215)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
    at org.testng.TestNG.run(TestNG.java:1048)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

测试类 ValidarFaturamentoRoamingTest 扩展了类 BaseTest ：

public class BaseTest {

public static WebDriver driver;
public static WebDriverWait wait;

@BeforeClass
public static void setup() {

    System.setProperty("webdriver.chrome.driver", "e:\\Selenium\\chromedriver.exe");
    driver = new ChromeDriver();
    wait = new WebDriverWait(driver, 15);
    driver.manage().window().maximize();

}

@AfterClass
public static void tearDown() throws InterruptedException {

    Thread.sleep(5000);
    driver.findElement(By.id("mn_sair"));
    driver.quit();

}}

类 TratOsFatRoamPage ，它扩展了类 BasePage 。

public class ValidarFaturamentoRoamingTest extends BaseTest {

@Test(priority=0)
public void acessarBkoMais() {

    HomePage homepage = new HomePage(driver, wait);
    homepage.abrirBkoMais();
}
@Test(priority=1)
public void logarBkoMais() {

    LoginPage logar = new LoginPage(driver, wait);
    logar.loginBkoMais("000000", "000000");
}
@Test(priority=2)
public void logarEstrategia() {

    LogarEstrategiaPage logarEstrategia = new LogarEstrategiaPage(driver, wait);
    logarEstrategia.logarEstrategia();  
}
@Test(priority=3)
public void registroNovo() {
    RegistroNovo registroNovo = new RegistroNovo(driver, wait);
    registroNovo.registroNovo();
}
@Test(priority=4)
public void tabulacaoTratamento() {

    TratOsFatRoamPage rt = new TratOsFatRoamPage(driver, wait);
    rt.TratOsFatRoam();     
}}

类 BasePage ，其中包含所有常见类的方法：

public class TratOsFatRoamPage extends BasePage {

public TratOsFatRoamPage(WebDriver driver, WebDriverWait wait) {

    super(driver, wait);

}

String idMotivo = "cboMotivo";
String idSubMotivo = "cboSubMotivo";
String idStatus = "cboStatus";
String qtdNumerosFaturas = "txtQtdFaturas";
String qtdNumerosCotas = "txtQtdContas";
String idObservacao = "txtObservacao";
String idSalvar = "btnSalvar";

public void TratOsFatRoam() {

    writeText(By.id(qtdNumerosFaturas),"Teste 2018");
    writeText(By.id(qtdNumerosCotas), "2018-2");

}}

Answer 1

  

org.openqa.selenium.WebDriverException：chrome无法访问

这意味着由于某种原因，驱动程序和chrome实例之间没有发生通信;在你的情况下，原因是你在3次测试运行后手动关闭它。 并且您的TestNG控制台显示错误屏幕，因为由于关闭浏览器而未运行最后2个测试用例。

所以，你真正的问题是需要花费时间的第二次测试才能获得时间吗？

对于那篇文章的一些代码。

Answer 2

此错误消息......

org.openqa.selenium.WebDriverException: chrome not reachable

...表示 ChromeDriver 无法与 WebBrowser 进行通信，即 Chrome浏览会话。

您的主要问题是您使用的二进制文件版本之间的不兼容性，如下所示：

• 您正在使用 chromedriver = 2.40
• 您正在使用 chrome = 67.0
• 您的 Selenium客户端版本 2017-11-30T11：36：59.109Z 3.8.0 ，差不多 6几个月。
• 您的 JDK版 1.8.0_131 ，非常古老。

因此 JDK v8u131 ， Selenium Client v3.8.0 ， ChromeDriver v2.40 和 Chrome之间存在明显的不匹配浏览器v67.0