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Android example source code file (ProcessErrorsTest.java)

This example Android source code file (ProcessErrorsTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

activitymanager, android, androidtestcase, anr, app, content, crashed, exception, override, processerrorstest, string, stringbuilder, tag, test, util, utilities

The ProcessErrorsTest.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.smoketest;

import com.android.internal.os.RuntimeInit;

import android.app.ActivityManager;
import android.content.Context;
import android.test.AndroidTestCase;
import android.util.Log;

import java.util.Iterator;
import java.util.List;

/**
 * This smoke test is designed to quickly sniff for any error conditions
 * encountered after initial startup.
 */
public class ProcessErrorsTest extends AndroidTestCase {
    
    private final String TAG = "ProcessErrorsTest";
    
    protected ActivityManager mActivityManager;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        mActivityManager = (ActivityManager) 
                getContext().getSystemService(Context.ACTIVITY_SERVICE);
    }

    public void testSetUpConditions() throws Exception {
        assertNotNull(mActivityManager);
    }

    public void testNoProcessErrors() throws Exception {
        List<ActivityManager.ProcessErrorStateInfo> errList;        
        errList = mActivityManager.getProcessesInErrorState();
        
        // note: this contains information about each process that is currently in an error
        // condition.  if the list is empty (null) then "we're good".  
        
        // if the list is non-empty, then it's useful to report the contents of the list
        // we'll put a copy in the log, and we'll report it back to the framework via the assert.
        final String reportMsg = reportListContents(errList);
        if (reportMsg != null) {
            Log.w(TAG, reportMsg);
        }
        
        // report a non-empty list back to the test framework
        assertNull(reportMsg, errList);
    }
    
    /**
     * This helper function will dump the actual error reports.
     * 
     * @param errList The error report containing one or more error records.
     * @return Returns a string containing all of the errors.
     */
    private String reportListContents(List<ActivityManager.ProcessErrorStateInfo> errList) {
        if (errList == null) return null;

        StringBuilder builder = new StringBuilder();

        Iterator<ActivityManager.ProcessErrorStateInfo> iter = errList.iterator();
        while (iter.hasNext()) {
            ActivityManager.ProcessErrorStateInfo entry = iter.next();

            String condition;
            switch (entry.condition) {
            case ActivityManager.ProcessErrorStateInfo.CRASHED:
                condition = "CRASHED";
                break;
            case ActivityManager.ProcessErrorStateInfo.NOT_RESPONDING:
                condition = "ANR";
                break;
            default:
                condition = "<unknown>";
                break;
            }

            builder.append("Process error ").append(condition).append(" ");
            builder.append(" ").append(entry.shortMsg);
            builder.append(" detected in ").append(entry.processName).append(" ").append(entry.tag);
        }
        return builder.toString();
    }
    
}

Other Android examples (source code examples)

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