| /* |
| * 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 org.apache.qpid.server.protocol.v0_8; |
| |
| import static org.mockito.Matchers.anyBoolean; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| |
| import org.apache.qpid.server.flow.FlowCreditManager; |
| import org.apache.qpid.server.transport.ProtocolEngine; |
| import org.apache.qpid.test.utils.QpidTestCase; |
| |
| public class Pre0_10CreditManagerTest extends QpidTestCase |
| { |
| private Pre0_10CreditManager _creditManager; |
| private ProtocolEngine _protocolEngine; |
| |
| @Override |
| public void setUp() throws Exception |
| { |
| super.setUp(); |
| _protocolEngine = mock(ProtocolEngine.class); |
| } |
| |
| public void testBasicMessageCredit() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| _creditManager.setCreditLimits(0, 2); |
| assertTrue("Creditmanager should have credit", _creditManager.hasCredit()); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| assertTrue("Creditmanager should have credit", _creditManager.hasCredit()); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| assertFalse("Creditmanager should have credit", _creditManager.hasCredit()); |
| assertFalse("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| _creditManager.restoreCredit(1, 37); |
| assertTrue("Creditmanager should have credit", _creditManager.hasCredit()); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| } |
| |
| public void testBytesLimitDoesNotPreventLargeMessage() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| _creditManager.setCreditLimits(10, 0); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(3)); |
| assertFalse("Creditmanager should not be able to useCredit", _creditManager.useCreditForMessage(30)); |
| _creditManager.restoreCredit(1, 3); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(30)); |
| } |
| |
| public void testUseCreditWithNegativeMessageCredit() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| _creditManager.setCreditLimits(0, 3); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| _creditManager.setCreditLimits(0, 1); // This should get us to credit=-2 |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| assertFalse("Creditmanager should not be able to useCredit", _creditManager.useCreditForMessage(37)); |
| _creditManager.restoreCredit(1, 37); |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| _creditManager.restoreCredit(1, 37); |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| _creditManager.restoreCredit(1, 37); |
| assertTrue("Creditmanager should have credit", _creditManager.hasCredit()); |
| } |
| |
| public void testUseCreditWithNegativeBytesCredit() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| _creditManager.setCreditLimits(3, 0); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(1)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(1)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(1)); |
| _creditManager.setCreditLimits(1, 0); // This should get us to credit=-2 |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| assertFalse("Creditmanager should not be able to useCredit", _creditManager.useCreditForMessage(1)); |
| _creditManager.restoreCredit(1, 1); |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| _creditManager.restoreCredit(1, 1); |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| _creditManager.restoreCredit(1, 1); |
| assertTrue("Creditmanager should have credit", _creditManager.hasCredit()); |
| } |
| |
| public void testCreditAccountingWhileMessageLimitNotSet() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| _creditManager.restoreCredit(1, 37); |
| _creditManager.setCreditLimits(37, 1); // This should get us to credit=-1 |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| assertFalse("Creditmanager should not be able to useCredit", _creditManager.useCreditForMessage(37)); |
| _creditManager.restoreCredit(1, 37); |
| assertFalse("Creditmanager should not have credit", _creditManager.hasCredit()); |
| _creditManager.restoreCredit(1, 37); |
| assertTrue("Creditmanager should have credit", _creditManager.hasCredit()); |
| } |
| |
| public void testMessageCreditExhaustionSuspends() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| final FlowCreditManager.FlowCreditManagerListener flowListener = |
| mock(FlowCreditManager.FlowCreditManagerListener.class); |
| _creditManager.addStateListener(flowListener); |
| _creditManager.setCreditLimits(0, 1); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| verify(flowListener, never()).creditStateChanged(anyBoolean()); |
| assertFalse("Creditmanager should not be able to useCredit", _creditManager.useCreditForMessage(37)); |
| verify(flowListener).creditStateChanged(false); |
| _creditManager.restoreCredit(1, 0); |
| verify(flowListener).creditStateChanged(true); |
| } |
| |
| public void testBytesCreditExhaustionSuspends() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| final FlowCreditManager.FlowCreditManagerListener flowListener = |
| mock(FlowCreditManager.FlowCreditManagerListener.class); |
| _creditManager.addStateListener(flowListener); |
| _creditManager.setCreditLimits(10, 0); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(7)); |
| assertFalse("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(37)); |
| verify(flowListener, never()).creditStateChanged(anyBoolean()); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(3)); |
| assertFalse("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(3)); |
| verify(flowListener).creditStateChanged(false); |
| _creditManager.restoreCredit(1, 3); |
| verify(flowListener).creditStateChanged(true); |
| } |
| |
| public void testNotifiedAfterBytesCreditIncreased() throws Exception |
| { |
| _creditManager = new Pre0_10CreditManager(0, 0, _protocolEngine); |
| final FlowCreditManager.FlowCreditManagerListener flowListener = |
| mock(FlowCreditManager.FlowCreditManagerListener.class); |
| _creditManager.addStateListener(flowListener); |
| _creditManager.setCreditLimits(10, 0); |
| |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(4)); |
| assertTrue("Creditmanager should be able to useCredit", _creditManager.useCreditForMessage(4)); |
| verify(flowListener, never()).creditStateChanged(anyBoolean()); |
| |
| _creditManager.restoreCredit(1, 4); |
| verify(flowListener).creditStateChanged(true); |
| } |
| } |