opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/TransactionRateLimitingCallbackTest.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.datastore;
   9
  10 import static org.junit.Assert.fail;
  11 import static org.mockito.ArgumentMatchers.any;
  12 import static org.mockito.ArgumentMatchers.anyLong;
  13 import static org.mockito.Mockito.doReturn;
  14 import static org.mockito.Mockito.never;
  15 import static org.mockito.Mockito.verify;
  16
  17 import com.codahale.metrics.Timer;
  18 import com.google.common.base.Ticker;
  19 import java.util.concurrent.TimeUnit;
  20 import org.junit.Before;
  21 import org.junit.Test;
  22 import org.mockito.Mock;
  23 import org.mockito.MockitoAnnotations;
  24 import org.opendaylight.controller.cluster.datastore.utils.ActorUtils;
  25
  26 /**
  27  * Unit tests for TransactionRateLimitingCallback.
  28  *
  29  * @author Thomas Pantelis
  30  */
  31 public class TransactionRateLimitingCallbackTest {
  32
  33     @Mock
  34     ActorUtils mockContext;
  35
  36     @Mock
  37     Timer mockTimer;
  38
  39     @Mock
  40     Ticker mockTicker;
  41
  42     TransactionRateLimitingCallback callback;
  43
  44     @Before
  45     public void setUp() {
  46         MockitoAnnotations.initMocks(this);
  47         doReturn(mockTimer).when(mockContext).getOperationTimer(ActorUtils.COMMIT);
  48         callback = new TransactionRateLimitingCallback(mockContext);
  49         TransactionRateLimitingCallback.setTicker(mockTicker);
  50     }
  51
  52     @Test
  53     public void testSuccessWithoutPause() {
  54         doReturn(1L).doReturn(201L).when(mockTicker).read();
  55
  56         callback.run();
  57         callback.success();
  58
  59         verify(mockTimer).update(200L, TimeUnit.NANOSECONDS);
  60     }
  61
  62     @Test
  63     public void testSuccessWithPause() {
  64         doReturn(1L).doReturn(201L).doReturn(301L).doReturn(351L).when(mockTicker).read();
  65
  66         callback.run();
  67         callback.pause();
  68         callback.pause();
  69         callback.resume();
  70         callback.resume();
  71         callback.success();
  72
  73         verify(mockTimer).update(250L, TimeUnit.NANOSECONDS);
  74     }
  75
  76     @Test
  77     public void testFailure() {
  78         doReturn(1L).when(mockTicker).read();
  79
  80         callback.run();
  81         callback.failure();
  82
  83         verify(mockTimer, never()).update(anyLong(), any(TimeUnit.class));
  84     }
  85
  86     @Test
  87     public void testSuccessWithoutRun() {
  88         try {
  89             callback.success();
  90             fail("Expected IllegalStateException");
  91         } catch (IllegalStateException e) {
  92             // expected
  93         }
  94
  95         verify(mockTimer, never()).update(anyLong(), any(TimeUnit.class));
  96     }
  97 }