【发布时间】：2014-08-16 08:20:43
【问题描述】：
我刚刚开始编写 Java 测试以使用 Appium 和 JUnit 自动化原生 Android 应用程序。即使所需的 jar 位于 Eclipse GUI 中的类路径上，也会出现 NoClassDefFound 错误。我已将其范围缩小到这一行：
driver = new RemoteWebDriver(new URL("appium typical server url here"), capabilities);
以下 jar 位于 Eclipse 中的 Java 构建路径中的 Libraries 下：java-client-1.5.0.jar、selenium-java-2.42.2.jar、selenium-java-2.42.2-srcs.jar，以及 JUnit
这是我的完整代码：
package com.chinmay.automation;
import java.io.File;
import java.net.URL;
import org.openqa.selenium.By;
import org.openqa.selenium.Capabilities;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.CapabilityType;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class ChessTest {
private WebDriver driver=null;
@Before
public void setUp() throws Exception{
File appDir= new File("/Users/csathe/Desktop/Java");
File app = new File(appDir, "ChessFree.apk");
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
capabilities.setCapability(CapabilityType.VERSION, "4.3");
capabilities.setCapability(CapabilityType.PLATFORM, "Mac");
capabilities.setCapability("device", "android");
capabilities.setCapability("app-package", "uk.co.aifactory.chessfree");
capabilities.setCapability("app-activity", "ChessFreeActivity");
capabilities.setCapability("app", app.getAbsolutePath());
driver= new RemoteWebDriver(new URL("//appium typical server url here"), capabilities);
}
@Test
public void testFirst(){
// do something
}
@After
public void tearDown(){
// driver.quit();
}
}
如果我使用带有注释的 JUnit 运行它，它运行良好（但是什么都不做）。
带有以下行的堆栈跟踪：
java.lang.NoClassDefFoundError: com/google/common/base/Function
at com.chinmay.automation.ChessTest.setUp(ChessTest.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at
Caused by: java.lang.ClassNotFoundException: com.google.common.base.Function
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 25 more
在 JUnit 之外运行这一类会导致同样的错误。
【问题讨论】：
标签： java android selenium-webdriver appium