我尝试运行自动化脚本来测试我的Android设备（Java + Selenium + Appium）。根据任务，我应该使用extends class（extends BaseWebDriverTest）运行我的测试类。当我在没有扩展的情况下运行测试时，一切正常，但是我的测试失败并出现错误：
org.testng.TestNGException:
An error occurred while instantiating class auto.test.TestSample: null
at org.testng.internal.ClassHelper.createInstance1(ClassHelper.java:398)
at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:299)
at org.testng.internal.ClassImpl.getDefaultInstance(ClassImpl.java:115)
at org.testng.internal.ClassImpl.getInstances(ClassImpl.java:200)
at org.testng.internal.TestNGClassFinder.<init>(TestNGClassFinder.java:120)
at org.testng.TestRunner.initMethods(TestRunner.java:409)
at org.testng.TestRunner.init(TestRunner.java:235)
at org.testng.TestRunner.init(TestRunner.java:205)
at org.testng.TestRunner.<init>(TestRunner.java:160)
at org.testng.remote.RemoteTestNG$1.newTestRunner(RemoteTestNG.java:141)
at org.testng.remote.RemoteTestNG$DelegatingTestRunnerFactory.newTestRunner(RemoteTestNG.java:271)
at org.testng.SuiteRunner$ProxyTestRunnerFactory.newTestRunner(SuiteRunner.java:575)
at org.testng.SuiteRunner.init(SuiteRunner.java:159)
at org.testng.SuiteRunner.<init>(SuiteRunner.java:113)
at org.testng.TestNG.createSuiteRunner(TestNG.java:1299)
at org.testng.TestNG.createSuiteRunners(TestNG.java:1286)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:125)
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:483)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.lang.ExceptionInInitializerError
at auto.framework.pageframework.util.drivers.WebDriverWrapper.<clinit>(WebDriverWrapper.java:67)
at auto.framework.test.BaseWebDriverTest.<clinit>(BaseWebDriverTest.java:29)
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:408)
at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:29)
at org.testng.internal.ClassHelper.createInstance1(ClassHelper.java:387)
... 26 more
Caused by: java.lang.IllegalArgumentException: No enum constant auto.framework.pageframework.util.environment.Browser.
at java.lang.Enum.valueOf(Enum.java:238)
at auto.framework.pageframework.util.environment.Browser.valueOf(Browser.java:9)
at auto.framework.pageframework.util.environment.EnvironmentUtil.setBrowser(EnvironmentUtil.java:877)
at auto.framework.pageframework.util.environment.EnvironmentUtil.<clinit>(EnvironmentUtil.java:129)
... 34 more
Process finished with exit code 0
Appium服务器运行正常。
这是我的代码：
package auto.test;
import io.appium.java_client.AppiumDriver;
import io.appium.java_client.android.AndroidDriver;
import org.apache.log4j.Logger;
import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.CapabilityType;
import org.openqa.selenium.remote.DesiredCapabilities;
import auto.framework.test.BaseWebDriverTest;
import auto.pageframework.testdata.TestConstants;
import org.testng.Assert;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.concurrent.TimeUnit;
public class TestSample extends BaseWebDriverTest {
private static final Logger logger = Logger.getLogger(TestSample.class);
AppiumDriver driver;
@BeforeMethod(alwaysRun = true)
public void testSetup() throws MalformedURLException {
File classpathRoot = new File(System.getProperty("user.dir"));
File appDir = new File(classpathRoot, "/wholefoods");
File app = new File(appDir, "com.wholefoods.wholefoodsmarket.apk");
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
capabilities.setCapability("platformName", "Android");
capabilities.setCapability(CapabilityType.VERSION, "4.4.2");
capabilities.setCapability("deviceName", "J509B1ZB46180A57");
capabilities.setCapability("app", app.getAbsolutePath());
capabilities.setCapability("appPackage", "com.wholefoods.wholefoodsmarket");
capabilities.setCapability("appActivity", "com.wholefoods.wholefoodsmarket.application.activities.WFMSplashActivity");
this.driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
}
@Test(groups = { TestConstants.TestNGGroups.REG }, description = "")
public void testSearchingForCoffeeFood() {
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
Boolean searchFieldIsPresent = driver.findElements(By.id("etHomeSearch")).size() > 0;
Assert.assertTrue(searchFieldIsPresent, "Search field with id='etHomeSearch' is absent.");
WebElement searchField = driver.findElement(By.id("etHomeSearch"));
searchField.clear();
searchField.sendKeys("Coffee");
Boolean searchButtonIsPresent = driver.findElements(By.id("imgSearch")).size() > 0;
Assert.assertTrue(searchButtonIsPresent, "Search button with id='imgSearch' is absent.");
WebElement searchButton = driver.findElement(By.id("imgSearch"));
searchButton.click();
Boolean pageTitleIsPresent = driver.findElement(By.id("header_title")).getText().equals("SEARCH");
Boolean searchResultIsPresent = driver.findElements(By.id("recipesSearchResultsGrid")).size() > 0;
}
这是extends class的代码：
package auto.framework.test;
import auto.framework.pageframework.synchronization.AjaxHelper;
import framework.pageframework.util.drivers.WebDriverWrapper;
import framework.pageframework.util.environment.EnvironmentUtil;
import auto.framework.test.TestListener;
import org.apache.log4j.Logger;
import org.openqa.selenium.WebDriver;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.Listeners;
@Listeners({TestListener.class})
public class BaseWebDriverTest {
protected static WebDriver driver = null;
protected static AjaxHelper syncHelper = new AjaxHelper(WebDriverWrapper.getWebDriver());
protected static EnvironmentUtil env = EnvironmentUtil.getInstance();
protected static Logger logger = Logger.getLogger(BaseWebDriverTest.class);
public BaseWebDriverTest() {
}
@AfterClass(
alwaysRun = true
)
public static void suiteTearDown() {
if(!env.getIsRemoteTestRun()) {
WebDriverWrapper.closeBrowser(driver);
}
}
@AfterMethod(
alwaysRun = true
)
public void testTearDown() {
logger.warn("========================== Completed test ==============================");
}
static {
logger.info("calling get WebDriver()");
driver = WebDriverWrapper.getWebDriver();
}
}
这是我的Browser课程：
public enum Browser {
FIREFOX,
CHROME,
SAFARI,
IE,
LOCAL_SIMULATED_NEXUS_SEVEN,
LOCAL_SIMULATED_IPAD_THREE,
BS_FIREFOX_31,
BS_FIREFOX_35_LS,
BS_IE_10,
BS_IE_11,
BS_IE_11_LS,
BS_CHROME_36,
BS_CHROME_39,
BS_CHROME_39_LS,
BS_SAFARI_7_MAC,
LOCAL_NEXUS_SEVEN_MOBILE_WEB,
LOCAL_NEXUS_SEVEN_DEVICE,
LOCAL_ANDROID_MOBILE,
LOCAL_ANDROID_TABLET,
SIM_IPAD_MOBILE_WEB,
SIM_IPHONE_MOBILE_WEB,
LOCAL_SIM_IPHONE_FIVE,
LOCAL_SIM_IPHONE_FIVE_S,
LOCAL_SIM_IPHONE_SIX,
LOCAL_SIM_IPHONE_SIX_PLUS,
LOCAL_SIM_IPAD,
LOCAL_IPAD_DEVICE,
LOCAL_IPHONE_DEVICE,
LOCAL_GENERIC_DEVICE,
LOCAL_GENERIC_DRIVER,
REMOTE_CHROME,
REMOTE_FIREFOX,
REMOTE_INTERNETEXPLORER,
REMOTE_SAFARI,
REMOTE_SIMULATED_NEXUS_SEVEN,
REMOTE_SIMULATED_IPAD,
APPTHWACK_SAFARI_IOS,
APPTHWACK_NEXUS_SEVEN,
APPTHWACK_NEXUS_FIVE,
APPTHWACK_IPHONE_SIX,
APPTHWACK_IPAD_FOUR,
TD_NEXUS_SEVEN_CHROME_WEB,
TD_NEXUS_SEVEN,
TD_NEXUS_FIVE,
TD_GALAXY_S_THREE,
TD_IPAD_SAFARI_WEB,
TD_IPAD,
TD_IPHONE_SIX;
private Browser() {
}
}
这是EnvironmentUtil：
public class EnvironmentUtil {
private static Logger logger = Logger.getLogger(EnvironmentUtil.class);
private static Browser browser;
private static String deviceName;
private static String platformVersion;
private static String url;
private static String testPlanId;
private static String testRunId;
private static String snapshotDirectory;
private static Boolean takeSnapShots = Boolean.valueOf(true);
private static Boolean setLogToDebug = Boolean.valueOf(false);
private static Boolean logResults = Boolean.valueOf(false);
private static Boolean failedTestDoReset = Boolean.valueOf(false);
private static String webDriverGridUrl = "";
private static Boolean isMobileTest = Boolean.valueOf(false);
private static int appThwackProjectId = 0;
private static String appThwackApiKey = "";
private static int appThwackAppId = 0;
private static String appiumGridUrl;
private static String appPackage;
private static String appActivity;
private static String testDroidUserName = "";
private static String testDroidPassword = "";
private static String testDroidProjectName = "";
private static String testDroidProjectDescription = "";
private static String testDroidTestRun = "";
private static String testDroidServer = "";
private static String targetAppPath = "";
private static String testGroup = "";
private static boolean rawCssOnly = false;
private static String previousWindowHandle = "";
private static boolean isMobileIOS = false;
private static boolean isTablet = false;
private static boolean isPhablet = false;
private static boolean isSimulator = false;
private static boolean isPhone = false;
private static boolean isAndroidTablet = false;
private static String browserStackUserName = "";
private static String browserStackKey = "";
private static String iosBundleID = "";
private static String iosUdid = "";
private static boolean noSign = false;
private static boolean isJenkinsRun = false;
private static String jenkinsURL = "";
private static boolean isRemoteTestRun = false;
private static String dataProvider = "null";
private static String testRailUrl = "";
private static String testRailUserName = "";
private static String testRailPassword = "";
private static Map<String, String> locators = new HashMap();
private static boolean sizzleInjection = false;
private static String caseId = "";
private static EnvironmentUtil instance = new EnvironmentUtil();
public static EnvironmentUtil getInstance() {
return instance;
}
请帮助我，我该如何解决这个问题！谢谢！
答案 0 :(得分：0)
您的类EnvironmentUtil尝试使用名为Browser的枚举，并指向那里无效的值（可能为null）。在您的类BaseWebDriverTest中，您有一行
protected static EnvironmentUtil env = EnvironmentUtil.getInstance();
无法运行，因为它是静态的，整个类无法加载