A Discrete-Event Network Simulator
API
drop-tail-queue-test-suite.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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3  * Copyright (c) 2007 University of Washington
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16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  */
18 
19 #include "ns3/test.h"
20 #include "ns3/drop-tail-queue.h"
21 #include "ns3/string.h"
22 
23 using namespace ns3;
24 
32 {
33 public:
35  virtual void DoRun (void);
36 };
37 
39  : TestCase ("Sanity check on the drop tail queue implementation")
40 {
41 }
42 void
44 {
45  Ptr<DropTailQueue<Packet> > queue = CreateObject<DropTailQueue<Packet> > ();
46  NS_TEST_EXPECT_MSG_EQ (queue->SetAttributeFailSafe ("MaxSize", StringValue ("3p")), true,
47  "Verify that we can actually set the attribute");
48 
49  Ptr<Packet> p1, p2, p3, p4;
50  p1 = Create<Packet> ();
51  p2 = Create<Packet> ();
52  p3 = Create<Packet> ();
53  p4 = Create<Packet> ();
54 
55  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 0, "There should be no packets in there");
56  queue->Enqueue (p1);
57  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 1, "There should be one packet in there");
58  queue->Enqueue (p2);
59  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 2, "There should be two packets in there");
60  queue->Enqueue (p3);
61  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 3, "There should be three packets in there");
62  queue->Enqueue (p4); // will be dropped
63  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 3, "There should be still three packets in there");
64 
65  Ptr<Packet> packet;
66 
67  packet = queue->Dequeue ();
68  NS_TEST_EXPECT_MSG_EQ ((packet != 0), true, "I want to remove the first packet");
69  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 2, "There should be two packets in there");
70  NS_TEST_EXPECT_MSG_EQ (packet->GetUid (), p1->GetUid (), "was this the first packet ?");
71 
72  packet = queue->Dequeue ();
73  NS_TEST_EXPECT_MSG_EQ ((packet != 0), true, "I want to remove the second packet");
74  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 1, "There should be one packet in there");
75  NS_TEST_EXPECT_MSG_EQ (packet->GetUid (), p2->GetUid (), "Was this the second packet ?");
76 
77  packet = queue->Dequeue ();
78  NS_TEST_EXPECT_MSG_EQ ((packet != 0), true, "I want to remove the third packet");
79  NS_TEST_EXPECT_MSG_EQ (queue->GetNPackets (), 0, "There should be no packets in there");
80  NS_TEST_EXPECT_MSG_EQ (packet->GetUid (), p3->GetUid (), "Was this the third packet ?");
81 
82  packet = queue->Dequeue ();
83  NS_TEST_EXPECT_MSG_EQ ((packet == 0), true, "There are really no packets in there");
84 }
85 
93 {
94 public:
96  : TestSuite ("drop-tail-queue", UNIT)
97  {
98  AddTestCase (new DropTailQueueTestCase (), TestCase::QUICK);
99  }
100 };
101 
DropTail Queue TestSuite.
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:73
Hold variables of type string.
Definition: string.h:41
A suite of tests to run.
Definition: test.h:1342
#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:285
encapsulates test code
Definition: test.h:1155
virtual void DoRun(void)
Implementation to actually run this TestCase.
void AddTestCase(TestCase *testCase, TestDuration duration=QUICK)
Add an individual child TestCase to this test suite.
Definition: test.cc:299
Every class exported by the ns3 library is enclosed in the ns3 namespace.
DropTailQueue unit tests.
static DropTailQueueTestSuite g_dropTailQueueTestSuite
Static variable for test initialization.
This test suite implements a Unit Test.
Definition: test.h:1351