android - Instrumentation run failed due to 'java.lang.ClassNotFoundException'error while running Unit test through Espresso -
i new in android development coding. have developed 1 basic app mo call through pressing 1 button.
i trying test app through espresso.here code :
app name : phonecall
mainacticity.java code :
package com.test.phonecall; import android.content.intent; import android.net.uri; import android.os.bundle; import android.support.v7.app.actionbaractivity; import android.view.menu; import android.view.menuitem; import android.view.view; public class mainactivity extends actionbaractivity { @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.main, menu); return true; } @override public boolean onoptionsitemselected(menuitem item) { // handle action bar item clicks here. action bar // automatically handle clicks on home/up button, long // specify parent activity in androidmanifest.xml. int id = item.getitemid(); if (id == r.id.action_settings) { return true; } return super.onoptionsitemselected(item); } /** * placeholder fragment containing simple view. */ public void onclickfun(view view) { try { uri number = uri.parse("tel:" + "xxxxxxxx"); intent dial = new intent(intent.action_call, number); startactivity(dial); }catch(exception e){ } } } manifest file:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.test.phonecall" android:versioncode="1" android:versionname="1.0" > <uses-sdk android:minsdkversion="11" android:targetsdkversion="19" /> <uses-permission android:name="android.permission.call_phone" /> <application android:allowbackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/apptheme" > <activity android:name="com.test.phonecall.mainactivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.main" /> <category android:name="android.intent.category.launcher" /> </intent-filter> </activity> </application> </manifest> test project :
package com.test.phonecall.test; import junit.framework.assert; import android.app.instrumentation; import android.test.activityinstrumentationtestcase2; import android.util.log; import com.google.android.apps.common.testing.ui.espresso.espresso; import com.google.android.apps.common.testing.ui.espresso.action.viewactions; import com.google.android.apps.common.testing.ui.espresso.matcher.viewmatchers; import com.test.phonecall.mainactivity; import com.test.phonecall.r; public class testmainactivity extends activityinstrumentationtestcase2<mainactivity> { private mainactivity activity; private instrumentation instrumentation; public testmainactivity(string name) { super(mainactivity.class); } protected void setup() throws exception { super.setup(); this.activity = (mainactivity) super.getactivity(); this.instrumentation = super.getinstrumentation(); } protected void teardown() throws exception { super.teardown(); } public void testphonecallbtn() { try { log.d("test","in testphonecallbtn"); espresso.onview(viewmatchers.withid(r.id.button1)).perform(viewactions.click()); } catch (exception e) { log.d("mytestapp", e.getmessage()); } } public void testactivitytitleiscorrect() { assert.asserttrue(this.activity.gettitle().equals("phonecall")); log.d("test","in testphonecallbtn"); espresso.onview(viewmatchers.withid(r.id.button1)).perform(viewactions.click()); } } manifest file:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.test.phonecall.test" android:versioncode="1" android:versionname="1.0" > <uses-sdk android:minsdkversion="15" android:targetsdkversion="20" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <uses-library android:name="android.test.runner" /> </application> <instrumentation android:name="com.google.android.apps.common.testing.testrunner.googleinstrumentationtestrunner" android:targetpackage="com.test.phonecall"/> </manifest> exception logs :
01-12 06:10:35.569: w/dalvikvm(10800): threadid=1: thread exiting uncaught exception (group=0x415d9d58) 01-12 06:10:35.569: e/androidruntime(10800): fatal exception: main 01-12 06:10:35.569: e/androidruntime(10800): process: com.test.phonecall, pid: 10800 01-12 06:10:35.569: e/androidruntime(10800): java.lang.runtimeexception: unable instantiate instrumentation componentinfo{com.test.phonecall.test/com.google.android.apps.common.testing.testrunner.googleinstrumentationtestrunner}: java.lang.classnotfoundexception: didn't find class "com.google.android.apps.common.testing.testrunner.googleinstrumentationtestrunner" on path: dexpathlist[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.test.phonecall.test-2.apk", zip file "/data/app/com.test.phonecall-2.apk"],nativelibrarydirectories=[/data/app-lib/com.test.phonecall.test-2, /data/app-lib/com.test.phonecall-2, /vendor/lib, /system/lib]] 01-12 06:10:35.569: e/androidruntime(10800): @ android.app.activitythread.handlebindapplication(activitythread.java:4379) 01-12 06:10:35.569: e/androidruntime(10800): @ android.app.activitythread.access$1500(activitythread.java:138) 01-12 06:10:35.569: e/androidruntime(10800): @ android.app.activitythread$h.handlemessage(activitythread.java:1259) 01-12 06:10:35.569: e/androidruntime(10800): @ android.os.handler.dispatchmessage(handler.java:102) 01-12 06:10:35.569: e/androidruntime(10800): @ android.os.looper.loop(looper.java:136) 01-12 06:10:35.569: e/androidruntime(10800): @ android.app.activitythread.main(activitythread.java:5111) 01-12 06:10:35.569: e/androidruntime(10800): @ java.lang.reflect.method.invokenative(native method) 01-12 06:10:35.569: e/androidruntime(10800): @ java.lang.reflect.method.invoke(method.java:515) 01-12 06:10:35.569: e/androidruntime(10800): @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:786) 01-12 06:10:35.569: e/androidruntime(10800): @ com.android.internal.os.zygoteinit.main(zygoteinit.java:602) 01-12 06:10:35.569: e/androidruntime(10800): @ dalvik.system.nativestart.main(native method) 01-12 06:10:35.569: e/androidruntime(10800): caused by: java.lang.classnotfoundexception: didn't find class "com.google.android.apps.common.testing.testrunner.googleinstrumentationtestrunner" on path: dexpathlist[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.test.phonecall.test-2.apk", zip file "/data/app/com.test.phonecall-2.apk"],nativelibrarydirectories=[/data/app-lib/com.test.phonecall.test-2, /data/app-lib/com.test.phonecall-2, /vendor/lib, /system/lib]] 01-12 06:10:35.569: e/androidruntime(10800): @ dalvik.system.basedexclassloader.findclass(basedexclassloader.java:56) 01-12 06:10:35.569: e/androidruntime(10800): @ java.lang.classloader.loadclass(classloader.java:497) 01-12 06:10:35.569: e/androidruntime(10800): @ java.lang.classloader.loadclass(classloader.java:457) 01-12 06:10:35.569: e/androidruntime(10800): @ android.app.activitythread.handlebindapplication(activitythread.java:4376) 01-12 06:10:35.569: e/androidruntime(10800): ... 10 more
1.ensure espresso jar in libs folder
2.ensure exported in class path
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