运行多次测试时会话 ID 无效

Question

这个问题我之前也提过，但是好像没人能回答。因此，我将继续 post 对当前代码结构再提问一次：

我有一个 parent 和一个 @BeforeEach 方法来设置一切：

public class WebDriverSettings {

    public static WebDriver driver;

    @BeforeEach
    public void setUp() {
        WebDriverManager.chromedriver().setup();
        driver = new ChromeDriver();
        driver.manage().window().maximize();
        driver.manage().timeouts().implicitlyWait(4, TimeUnit.SECONDS);
        loginToEnvironment();
    }


    @AfterEach
    public void tearDown(){
        driver.manage().deleteAllCookies();
        driver.close();
    }



private void loginToEnvironment() {
        String TARGET_URL = System.getProperty("TARGET_URL", "");
        String URL = " + "@" + TARGET_URL;
        driver.get(URL);
    }

比 parent 的 child，测试之一类:

public class LoginServiceTest extends WebDriverSettings {

    private LoginModal loginModal;

    @BeforeEach
    public void setUp() {
        super.setUp();
        loginModal = HomePage.homepageInstance(driver)
                .acceptCookies()
                .closeCovidMessage()
                .clickOnMyAccountTab()
                .switchToLoginTab();
    }

    @Test
    public void shouldSuccessfullyLogin() {
        assertEquals(userName, loginModal.login(loginCorrectData()).myAccountName.getText());
    }

    @Test
    public void shouldDisplayIncorrectCredentialsMessage() {
        loginModal.login(loginIncorrectData());
        assertEquals(incorrectCredentialsMessage,loginModal.wrongCredentials.getText());
    }

pom 示例 object，我所有的 pom object 都是这样构建的：

ublic class LoginModal extends BasePage {

private static LoginModal loginModal;

@FindBy(xpath = "//input[@name='email']")
public WebElement emailInputField;

@FindBy(xpath = "//input[@name='password']")
public WebElement passwordInputField;

@FindBy(css = ".button-hover-wrapper > div.button-inner")
public WebElement loginButton;

@FindBy(xpath = "//a[text()='Log In']")
public WebElement loginTab;

@FindBy(css = ".error-info")
public WebElement wrongCredentials;

private LoginModal(WebDriver driver) {
    super(driver);
}

public static LoginModal loginModalInstance(WebDriver driver) {
    return loginModal == null ? loginModal = new LoginModal(driver) : loginModal;
}

public HomePage login(Login login) {
    loginModal.clickOnLoginTab()
            .fillInEmail(login.getEmail())
            .fillInPassword(login.getPassword())
            .clickOnLoginButton();
    return HomePage.homepageInstance(driver);
}

public LoginModal clickOnLoginTab() {
    loginModal.loginTab.click();
    return loginModal;
}

public LoginModal fillInEmail(String email) {
    loginModal.emailInputField.clear();
    loginModal.emailInputField.sendKeys(email);
    return loginModal;
}

public LoginModal fillInPassword(String password) {
    loginModal.passwordInputField.clear();
    loginModal.passwordInputField.sendKeys(password);
    return loginModal;
}

public void clickOnLoginButton() {
    loginModal.loginButton.click();
}

}

根据我的理解，我的代码执行以下操作：

setUp方法在parent运行s之前每次测试，比childsetUp方法开始到运行，成功打开浏览器并完成测试。然而，当它进行另一个测试时，我得到以下信息：

    invalid session id
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
System info: host: 'Artjoms-MacBook-Air.local', ip: 'fe80:0:0:0:10eb:9260:8538:39df%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.15.6', java.version: '15'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities {acceptInsecureCerts: false, browserName: chrome, browserVersion: 86.0.4240.183, chrome: {chromedriverVersion: 86.0.4240.22 (398b0743353ff..., userDataDir: /var/folders/z6/46cwjtvx2fj...}, goog:chromeOptions: {debuggerAddress: localhost:56802}, javascriptEnabled: true, networkConnectionEnabled: false, pageLoadStrategy: normal, platform: MAC, platformName: MAC, proxy: Proxy(), setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify, webauthn:virtualAuthenticators: true}
Session ID: 9837fd96a4efca85f4bcdbf90fea8a77
*** Element info: {Using=css selector, value=.cookie-accept-all}
org.openqa.selenium.NoSuchSessionException: invalid session id

当前依赖堆栈：

dependencies {
    compile group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '3.141.59'
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.3.1'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.3.1'
    compile group: 'org.seleniumhq.selenium', name: 'selenium-chrome-driver', version: '3.141.5'
    compile group: 'io.github.bonigarcia', name: 'webdrivermanager', version: '4.2.2'
    compileOnly 'org.projectlombok:lombok:1.18.16'
    annotationProcessor 'org.projectlombok:lombok:1.18.16'
    testCompileOnly 'org.projectlombok:lombok:1.18.16'
    testAnnotationProcessor 'org.projectlombok:lombok:1.18.16'
}

Answer 1

所以问题是页面对象是以单例方式设计的：

public static LoginModal loginModalInstance(WebDriver driver) {
    return loginModal == null ? loginModal = new LoginModal(driver) : loginModal;
}

因此，一旦在第一个测试中使用驱动程序初始化，它们在新测试中仍然引用旧的驱动程序实例（已经关闭）。

解决方案是返工 loginModalInstance 和其他类似方法，以便它们 re-initialize 现有对象的字段具有新的驱动程序实例。

运行多次测试时会话 ID 无效

Invalid session id when running multiple tests

java

junit

selenium

selenium-chromedriver

运行 多次测试时会话 ID 无效

Invalid session id when running multiple tests

java

junit

selenium

selenium-chromedriver

运行多次测试时会话 ID 无效