A Discrete-Event Network Simulator
API
lollipop-counter-test.cc
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1 /*
2  * Copyright (c) 2020 Universita' di Firenze, Italy
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation;
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write to the Free Software
15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16  *
17  * Author: Tommaso Pecorella <tommaso.pecorella@unifi.it>
18  */
19 
20 #include "ns3/lollipop-counter.h"
21 #include "ns3/test.h"
22 
23 #include <limits>
24 #include <string>
25 
26 using namespace ns3;
27 
34 class LollipopCounterTest : public TestCase
35 {
36  public:
37  void DoRun() override;
38  LollipopCounterTest();
39 };
40 
41 LollipopCounterTest::LollipopCounterTest()
42  : TestCase("Lollipop Counter implementation")
43 {
44 }
45 
46 void
47 LollipopCounterTest::DoRun()
48 {
49  LollipopCounter<uint8_t> counter8a;
50  LollipopCounter<uint8_t> counter8b;
51 
52  bool greater;
53  bool lesser;
54  bool equal;
55  bool isComparable;
56 
57  // tests with uint8_t
58  counter8a = 240;
59  counter8b = 5;
60 
61  greater = counter8a > counter8b;
62  lesser = counter8a < counter8b;
63  equal = counter8a == counter8b;
64  isComparable = counter8a.IsComparable(counter8b);
65 
66  NS_TEST_EXPECT_MSG_EQ(greater, true, "240 is greater than 5");
67  NS_TEST_EXPECT_MSG_EQ(lesser, false, "240 is not lesser than 5");
68  NS_TEST_EXPECT_MSG_EQ(equal, false, "240 is not equal to 5");
69  NS_TEST_EXPECT_MSG_EQ(isComparable, true, "240 is comparable with 5");
70 
71  counter8a = 250;
72  counter8b = 5;
73 
74  greater = counter8a > counter8b;
75  lesser = counter8a < counter8b;
76  equal = counter8a == counter8b;
77  isComparable = counter8a.IsComparable(counter8b);
78 
79  NS_TEST_EXPECT_MSG_EQ(greater, false, "250 is not greater than 5");
80  NS_TEST_EXPECT_MSG_EQ(lesser, true, "250 is lesser than 5");
81  NS_TEST_EXPECT_MSG_EQ(equal, false, "250 is not equal to 5");
82  NS_TEST_EXPECT_MSG_EQ(isComparable, true, "250 is comparable with 5");
83 
84  counter8a = 127;
85  counter8b = 1;
86 
87  greater = counter8a > counter8b;
88  lesser = counter8a < counter8b;
89  equal = counter8a == counter8b;
90  isComparable = counter8a.IsComparable(counter8b);
91 
92  NS_TEST_EXPECT_MSG_EQ(greater, false, "127 is not greater than 1");
93  NS_TEST_EXPECT_MSG_EQ(lesser, true, "127 is lesser than 1");
94  NS_TEST_EXPECT_MSG_EQ(equal, false, "127 is not equal to 1");
95  NS_TEST_EXPECT_MSG_EQ(isComparable, true, "127 is comparable with 1");
96 
97  counter8a = 127;
98  counter8b = 115;
99 
100  greater = counter8a > counter8b;
101  lesser = counter8a < counter8b;
102  equal = counter8a == counter8b;
103  isComparable = counter8a.IsComparable(counter8b);
104 
105  NS_TEST_EXPECT_MSG_EQ(greater, true, "127 is greater than 115");
106  NS_TEST_EXPECT_MSG_EQ(lesser, false, "127 is not lesser than 115");
107  NS_TEST_EXPECT_MSG_EQ(equal, false, "127 is not equal to 115");
108  NS_TEST_EXPECT_MSG_EQ(isComparable, true, "127 is comparable with 115");
109 
110  counter8a = 127;
111  counter8b = 100;
112 
113  greater = counter8a > counter8b;
114  lesser = counter8a < counter8b;
115  equal = counter8a == counter8b;
116  isComparable = counter8a.IsComparable(counter8b);
117 
118  NS_TEST_EXPECT_MSG_EQ(greater, false, "127 is not greater than 100");
119  NS_TEST_EXPECT_MSG_EQ(lesser, false, "127 is not lesser than 100");
120  NS_TEST_EXPECT_MSG_EQ(equal, false, "127 is not equal to 100");
121  NS_TEST_EXPECT_MSG_EQ(isComparable, false, "127 is not comparable with 100");
122 
123  counter8a = 12;
124  counter8b = 233;
125 
126  greater = counter8a > counter8b;
127  lesser = counter8a < counter8b;
128  equal = counter8a == counter8b;
129  isComparable = counter8a.IsComparable(counter8b);
130 
131  NS_TEST_EXPECT_MSG_EQ(greater, false, "12 is not greater than 233");
132  NS_TEST_EXPECT_MSG_EQ(lesser, true, "12 is lesser than 233");
133  NS_TEST_EXPECT_MSG_EQ(equal, false, "12 is not equal to 233");
134  NS_TEST_EXPECT_MSG_EQ(isComparable, true, "12 is comparable with 233");
135 
136  counter8a = 255;
137  counter8b = counter8a++;
138  NS_TEST_EXPECT_MSG_EQ((255 == counter8b), true, "Correct interpretation of postfix operator");
139  NS_TEST_EXPECT_MSG_EQ((0 == counter8a), true, "Correct interpretation of postfix operator");
140 
141  counter8a = 255;
142  counter8b = ++counter8a;
143  NS_TEST_EXPECT_MSG_EQ((0 == counter8b), true, "Correct interpretation of prefix operator");
144  NS_TEST_EXPECT_MSG_EQ((0 == counter8a), true, "Correct interpretation of prefix operator");
145 }
146 
153 class LolipopCounterTestSuite : public TestSuite
154 {
155  public:
156  LolipopCounterTestSuite();
157 
158  private:
159 };
160 
161 LolipopCounterTestSuite::LolipopCounterTestSuite()
162  : TestSuite("lollipop-counter", UNIT)
163 {
164  AddTestCase(new LollipopCounterTest(), TestCase::QUICK);
165 }
166 
167 static LolipopCounterTestSuite
168  g_lollipopCounterTestSuite;
LolipopCounterTestSuite
Lollipop Counter TestSuite.
Definition: lollipop-counter-test.cc:154
LollipopCounterTest
Lollipop Counter Test.
Definition: lollipop-counter-test.cc:35
LollipopCounterTest::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: lollipop-counter-test.cc:47
ns3::LollipopCounter
Template class implementing a Lollipop counter as defined in RFC 8505, RFC 6550, and [Perlman83].
Definition: lollipop-counter.h:68
ns3::LollipopCounter::IsComparable
bool IsComparable(const LollipopCounter &val) const
Checks if the counter is comparable with another counter (i.e., not desynchronized).
Definition: lollipop-counter.h:160
ns3::TestCase
encapsulates test code
Definition: test.h:1060
ns3::TestCase::AddTestCase
void AddTestCase(TestCase *testCase, TestDuration duration=QUICK)
Add an individual child TestCase to this test suite.
Definition: test.cc:301
ns3::TestSuite
A suite of tests to run.
Definition: test.h:1256
NS_TEST_EXPECT_MSG_EQ
#define NS_TEST_EXPECT_MSG_EQ(actual, limit, msg)
Test that an actual and expected (limit) value are equal and report if not.
Definition: test.h:251
g_lollipopCounterTestSuite
static LolipopCounterTestSuite g_lollipopCounterTestSuite
Static variable for test initialization.
Definition: lollipop-counter-test.cc:168
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.