Question

每当我使用driver.findElement(By.anything("")).getText();时，我都会得到NullPointerException。在android真实设备上进行测试。

Appium 1.8.1
三星S8
ChromeDriver 2.38
ChromeBrowser最新

从我的测试库开始的以下代码可以初始化驱动程序，这可能是问题吗？他们缺少的代码部分是用于初始化Driver。

    if (driver == null) {
        switch (prop.getProperty("browser")) {
        case "chrome":
            System.setProperty("webdriver.chrome.driver", prop.getProperty("chrome.driver.path"));
            driver = new ChromeDriver();
            break;
        default:
            System.out.println("Wrong driver was chosen! Plsease choose the driver.");
        }

        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        driver.manage().window().maximize();
    }
    return driver;
}
public static AndroidDriver<MobileElement> initializeMobileDriver() {
    if (Mdriver == null) {
    switch (prop.getProperty("MobileBrowser")) {
        case "android":
            capabilities = DesiredCapabilities.android();
            capabilities.setCapability(MobileCapabilityType.BROWSER_NAME, BrowserType.CHROME);
            capabilities.setCapability("autoGrantPermissions", "true"); 
            capabilities.setCapability(MobileCapabilityType.SUPPORTS_FINDING_BY_CSS, true);
            capabilities.setCapability(MobileCapabilityType.DEVICE_NAME, prop.getProperty("DeviceName"));
            capabilities.setCapability(MobileCapabilityType.APPIUM_VERSION, prop.getProperty("AppiumVersion"));
            capabilities.setCapability(MobileCapabilityType.PLATFORM, Platform.ANDROID);
            capabilities.setCapability(MobileCapabilityType.PLATFORM_NAME, prop.getProperty("PlatformName"));
            capabilities.setCapability(MobileCapabilityType.PLATFORM_VERSION, prop.getProperty("PlatformVersion"));
            capabilities.setCapability(MobileCapabilityType.DEVICE_NAME, prop.getProperty("DeviceName"));
            capabilities.setCapability("autoAcceptAlerts", "true");
            try {
                Mdriver = new AndroidDriver<MobileElement>(new URL("http://0.0.0.0:4723/wd/hub"), capabilities);
                driver = Mdriver;
            } catch (Exception e) {
                System.out.println(" error is " + e.getMessage());
            }
            break;
        default:
            System.out.println("Wrong driver was chosen! Plsease choose the driver.");
        }
    }
    driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
    return Mdriver;
}

任何代码简单代码都可以使用，并且它返回null。

@测试公共静态无效的SimpleGetTextTest（）{

    driver.get("https://google.com")

    driver.findElement(By.name("q")).sendKeys("Java"+Keys.ENTER);

    driver.findElement(By.xpath("//div[@class = 'MUxGbd']")).getText();

这将返回NullPointerException

Answer 1

我解决了这个问题。

基本上，如您在代码中看到的那样，我使用了Mdriver = new AndroidDriver（new URL（“ http://0.0.0.0:4723/wd/hub”），features）;，其中AndroidDriver = Mdriver;

我在两个实例上都将其更改为RemoteDriver，一切开始正常工作。希望这会有所帮助

.getText（）在实际设备自动化测试中返回NullPointerException

1 个答案: