/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 flex.messaging.config;

import flex.messaging.config.ThrottleSettings.Policy;
import flex.messaging.services.messaging.ThrottleManager;
import org.junit.Assert;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

public class ThrottleSettingsTest extends TestCase
{
    private static final String UNEXPECTED_EXCEPTION_STRING = "Unexpected exception: ";

    public ThrottleSettingsTest(String name)
    {
        super(name);
    }

    public static Test suite()
    {
        TestSuite suite = new TestSuite();
        suite.addTest(new ThrottleSettingsTest("testSetIncomingClientFrequencyHigherThanDestinationFrequency"));
        suite.addTest(new ThrottleSettingsTest("testSetIncomingDestinationFrequencyLowerThanClientFrequency"));
        suite.addTest(new ThrottleSettingsTest("testSetOutgoingClientFrequencyHigherThanDestinationFrequency"));
        suite.addTest(new ThrottleSettingsTest("testSetOutgoingDestinationFrequencyLowerThanClientFrequency"));
        suite.addTest(new ThrottleSettingsTest("testSetIncomingClientFrequencyWithZeroDestinationFrequency"));
        suite.addTest(new ThrottleSettingsTest("testSetIncomingDestinationFrequencyWithZeroClientFrequency"));
        suite.addTest(new ThrottleSettingsTest("testUnknownPolicy"));
        suite.addTest(new ThrottleSettingsTest("testOutgoingPolicyError"));
        return suite;
    }

    public void testSetIncomingClientFrequencyHigherThanDestinationFrequency()
    {
        ThrottleSettings ts = new ThrottleSettings();
        ts.setIncomingDestinationFrequency(10);
        try
        {
            ts.setIncomingClientFrequency(15);
            fail("ConfigurationException expected");
        }
        catch (ConfigurationException ce)
        {
            // Success.
        }
        catch (Exception e)
        {
            fail(UNEXPECTED_EXCEPTION_STRING + e);
        }
    }

    public void testSetIncomingDestinationFrequencyLowerThanClientFrequency()
    {
        ThrottleSettings ts = new ThrottleSettings();
        ts.setIncomingClientFrequency(15);
        try
        {
            ts.setIncomingDestinationFrequency(10);
            fail("ConfigurationException expected");
        }
        catch (ConfigurationException ce)
        {
            // Success.
        }
        catch (Exception e)
        {
            fail(UNEXPECTED_EXCEPTION_STRING + e);
        }
    }

    public void testSetOutgoingClientFrequencyHigherThanDestinationFrequency()
    {
        ThrottleSettings ts = new ThrottleSettings();
        ts.setOutgoingDestinationFrequency(10);
        try
        {
            ts.setOutgoingClientFrequency(15);
            fail("ConfigurationException expected");
        }
        catch (ConfigurationException ce)
        {
            // Success.
        }
        catch (Exception e)
        {
            fail(UNEXPECTED_EXCEPTION_STRING + e);
        }
    }

    public void testSetOutgoingDestinationFrequencyLowerThanClientFrequency()
    {
        ThrottleSettings ts = new ThrottleSettings();
        ts.setOutgoingClientFrequency(15);
        try
        {
            ts.setOutgoingDestinationFrequency(10);
            fail("ConfigurationException expected");
        }
        catch (ConfigurationException ce)
        {
            // Success.
        }
        catch (Exception e)
        {
            fail(UNEXPECTED_EXCEPTION_STRING + e);
        }
    }

    public void testSetIncomingClientFrequencyWithZeroDestinationFrequency()
    {
        ThrottleSettings ts = new ThrottleSettings();
        ts.setIncomingDestinationFrequency(0);
        ts.setIncomingClientFrequency(10);
        Assert.assertEquals(10, ts.getIncomingClientFrequency());
    }

    public void testSetIncomingDestinationFrequencyWithZeroClientFrequency()
    {
        ThrottleSettings ts = new ThrottleSettings();
        ts.setIncomingClientFrequency(0);
        ts.setIncomingDestinationFrequency(10);
        Assert.assertEquals(10, ts.getIncomingDestinationFrequency());
    }

    /**
     * Test that an UNKNOWN policy throws ConfigurationException.
     */
    public void testUnknownPolicy()
    {
        try
        {
            ThrottleSettings.parsePolicy("UNKNOWN");
        }
        catch (ConfigurationException ce)
        {
            // Success.
        }
        catch (Exception e)
        {
            fail(UNEXPECTED_EXCEPTION_STRING + e);
        }
    }

    /**
     * Test that outgoing policy of ERROR throws ConfigurationException.
     */
    public void testOutgoingPolicyError()
    {
        ThrottleManager manager = new ThrottleManager();
        ThrottleSettings ts = new ThrottleSettings();
        ts.setOutboundPolicy(Policy.ERROR);
        try
        {
            manager.setThrottleSettings(ts);
        }
        catch (ConfigurationException ce)
        {
            // Success.
        }
        catch (Exception e)
        {
            fail(UNEXPECTED_EXCEPTION_STRING + e);
        }
    }
}