src/base/callback.test.cc

   1 /*
   2  * Copyright (c) 2019 The Regents of the University of California
   3  * All rights reserved
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
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   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions are
  16  * met: redistributions of source code must retain the above copyright
  17  * notice, this list of conditions and the following disclaimer;
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  19  * notice, this list of conditions and the following disclaimer in the
  20  * documentation and/or other materials provided with the distribution;
  21  * neither the name of the copyright holders nor the names of its
  22  * contributors may be used to endorse or promote products derived from
  23  * this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  28  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  29  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  35  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #include <gtest/gtest.h>
  39
  40 #include "base/callback.hh"
  41
  42 class CallbackImpl : public Callback
  43 {
  44     public:
  45         bool processed = false;
  46         void process()
  47         {
  48             processed = true;
  49         }
  50 };
  51
  52 class MockClass
  53 {
  54     public:
  55         bool methodExecuted = false;
  56         void method()
  57         {
  58             methodExecuted = true;
  59         }
  60 };
  61
  62 TEST(CallbackQueueTest, GetName)
  63 {
  64     CallbackQueue callbackQueue;
  65     EXPECT_EQ("CallbackQueue", callbackQueue.name());
  66 }
  67
  68 TEST(CallbackQueueTest, IsEmpty)
  69 {
  70     CallbackQueue callbackQueue;
  71     EXPECT_TRUE(callbackQueue.empty());
  72 }
  73
  74 TEST(CallbackQueueTest, IsNotEmpty)
  75 {
  76     CallbackQueue callbackQueue;
  77     CallbackImpl impl;
  78     callbackQueue.add(&impl);
  79     EXPECT_FALSE(callbackQueue.empty());
  80 }
  81
  82 TEST(CallbackQueueTest, AddOneAndProcess)
  83 {
  84     CallbackQueue callbackQueue;
  85     CallbackImpl impl;
  86     callbackQueue.add(&impl);
  87     EXPECT_FALSE(impl.processed);
  88     callbackQueue.process();
  89     EXPECT_TRUE(impl.processed);
  90     // Processing a queue does not clear it.
  91     EXPECT_FALSE(callbackQueue.empty());
  92 }
  93
  94 TEST(CallbackQueueTest, AddManyAndProcess)
  95 {
  96     CallbackQueue callbackQueue;
  97     CallbackImpl impl1;
  98     CallbackImpl impl2;
  99     CallbackImpl impl3;
 100     CallbackImpl impl4;
 101     callbackQueue.add(&impl1);
 102     callbackQueue.add(&impl2);
 103     callbackQueue.add(&impl3);
 104     callbackQueue.add(&impl4);
 105     EXPECT_FALSE(impl1.processed);
 106     EXPECT_FALSE(impl2.processed);
 107     EXPECT_FALSE(impl3.processed);
 108     EXPECT_FALSE(impl4.processed);
 109     callbackQueue.process();
 110     EXPECT_TRUE(impl1.processed);
 111     EXPECT_TRUE(impl2.processed);
 112     EXPECT_TRUE(impl3.processed);
 113     EXPECT_TRUE(impl4.processed);
 114     EXPECT_FALSE(callbackQueue.empty());
 115 }
 116
 117 TEST(CallbackQueueTest, ClearQueue)
 118 {
 119     CallbackQueue callbackQueue;
 120     CallbackImpl callbackImpl;
 121     callbackQueue.add(&callbackImpl);
 122     EXPECT_FALSE(callbackQueue.empty());
 123     callbackQueue.clear();
 124     EXPECT_TRUE(callbackQueue.empty());
 125 }
 126
 127 TEST(CallbackQueueTest, MakeCallbackAddByReference)
 128 {
 129     CallbackQueue callbackQueue;
 130     MockClass mockClass;
 131     EXPECT_FALSE(mockClass.methodExecuted);
 132     callbackQueue.add<MockClass, &MockClass::method>(mockClass);
 133     callbackQueue.process();
 134     EXPECT_TRUE(mockClass.methodExecuted);
 135     EXPECT_FALSE(callbackQueue.empty());
 136 }
 137
 138 TEST(CallbackQueueTest, MakeCallbackAddByPointer)
 139 {
 140     CallbackQueue callbackQueue;
 141     MockClass mockClass;
 142     EXPECT_FALSE(mockClass.methodExecuted);
 143     callbackQueue.add<MockClass, &MockClass::method>(&mockClass);
 144     callbackQueue.process();
 145     EXPECT_TRUE(mockClass.methodExecuted);
 146     EXPECT_FALSE(callbackQueue.empty());
 147 }