LogTest.java example

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android-sdk-sources-for-api-level-23-master
/*
 * Copyright (C) 2007 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 android.util;

import junit.framework.Assert;
import junit.framework.TestCase;

import android.os.SystemProperties;
import android.test.PerformanceTestCase;
import android.test.suitebuilder.annotation.Suppress;
import android.util.Log;

//This is an empty TestCase.
@Suppress
public class LogTest extends TestCase {
    private static final String PROPERTY_TAG = "log.tag.LogTest";
    private static final String LOG_TAG = "LogTest";


    // TODO: remove this test once we uncomment out the following test.
    public void testLogTestDummy() {
      return;
    }


    /* TODO: This test is commented out because we will not be able to set properities. Fix the test.
    public void testIsLoggable() {
        // First clear any SystemProperty setting for our test key.
        SystemProperties.set(PROPERTY_TAG, null);
        
        String value = SystemProperties.get(PROPERTY_TAG);
        Assert.assertTrue(value == null || value.length() == 0);
        
        // Check to make sure that all levels expect for INFO, WARN, ERROR, and ASSERT are loggable. 
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be VERBOSE for this tag.
        SystemProperties.set(PROPERTY_TAG, "VERBOSE");
        
        // Test to make sure all log levels >= VERBOSE are loggable.
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be DEBUG for this tag.
        SystemProperties.set(PROPERTY_TAG, "DEBUG");
        
        // Test to make sure all log levels >= DEBUG are loggable.
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be INFO for this tag.
        SystemProperties.set(PROPERTY_TAG, "INFO");
        
        // Test to make sure all log levels >= INFO are loggable.
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be WARN for this tag.
        SystemProperties.set(PROPERTY_TAG, "WARN");
        
        // Test to make sure all log levels >= WARN are loggable.
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be ERROR for this tag.
        SystemProperties.set(PROPERTY_TAG, "ERROR");
        
        // Test to make sure all log levels >= ERROR are loggable.
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be ASSERT for this tag.
        SystemProperties.set(PROPERTY_TAG, "ASSERT");
        
        // Test to make sure all log levels >= ASSERT are loggable.
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertTrue(Log.isLoggable(LOG_TAG, Log.ASSERT));
        
        // Set the log level to be SUPPRESS for this tag.
        SystemProperties.set(PROPERTY_TAG, "SUPPRESS");
        
        // Test to make sure all log levels >= ASSERT are loggable.
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.VERBOSE));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.DEBUG));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.INFO));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.WARN));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.ERROR));
        Assert.assertFalse(Log.isLoggable(LOG_TAG, Log.ASSERT));
    }
    */
    
    public static class PerformanceTest extends TestCase implements PerformanceTestCase {
        private static final int ITERATIONS = 1000;

        @Override
        public void setUp() {
            SystemProperties.set(LOG_TAG, "VERBOSE");
        }
        
        public boolean isPerformanceOnly() {
            return true;
        }
        
        public int startPerformance(PerformanceTestCase.Intermediates intermediates) {
            intermediates.setInternalIterations(ITERATIONS * 10);
            return 0;
        }

        public void testIsLoggable() {
            boolean canLog = false;
            for (int i = ITERATIONS - 1; i >= 0; i--) {
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
                canLog = Log.isLoggable(LOG_TAG, Log.VERBOSE);
            }
        }
    }
}