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tcp: Added a test for IsLost in TcpTxBuffer

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This commit is contained in:
Natale Patriciello
2018-02-25 12:03:49 +01:00
parent 8e14751e7d
commit 0ef049147e
1 changed files with 48 additions and 0 deletions
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48
src/internet/test/tcp-tx-buffer-test.cc
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@@ -41,6 +41,8 @@ private:
virtual void DoRun (void);
virtual void DoTeardown (void);
/** \brief Test if a segment is really set as lost */
void TestIsLost ();
/** \brief Test the generation of an unsent block */
void TestNewBlock ();
/** \brief Test the generation of a previously sent block */
@@ -57,6 +59,7 @@ TcpTxBufferTestCase::TcpTxBufferTestCase ()
void
TcpTxBufferTestCase::DoRun ()
{
Simulator::Schedule (Seconds (0.0), &TcpTxBufferTestCase::TestIsLost, this);
/*
* Cases for new block:
* -> is exactly the same as stored
@@ -83,6 +86,51 @@ TcpTxBufferTestCase::DoRun ()
Simulator::Destroy ();
}
void
TcpTxBufferTestCase::TestIsLost ()
{
TcpTxBuffer txBuf;
SequenceNumber32 head (1);
txBuf.SetHeadSequence (head);
SequenceNumber32 ret;
Ptr<TcpOptionSack> sack = CreateObject<TcpOptionSack> ();
txBuf.Add(Create<Packet> (10000));
for (uint8_t i = 0; i <10 ; ++i)
txBuf.CopyFromSequence (1000, SequenceNumber32((i*1000)+1));
for (uint8_t i = 0; i < 10 ; ++i)
NS_TEST_ASSERT_MSG_EQ (txBuf.IsLost(SequenceNumber32((i*1000)+1), 3, 1000), false,
"Lost is true, but it's not");
sack->AddSackBlock (TcpOptionSack::SackBlock (1001, 2000));
txBuf.Update(sack->GetSackList());
for (uint8_t i = 0; i < 10 ; ++i)
NS_TEST_ASSERT_MSG_EQ (txBuf.IsLost(SequenceNumber32((i*1000)+1), 3, 1000), false,
"Lost is true, but it's not");
sack->AddSackBlock (TcpOptionSack::SackBlock (2001, 3000));
txBuf.Update(sack->GetSackList());
for (uint8_t i = 0; i < 10 ; ++i)
NS_TEST_ASSERT_MSG_EQ (txBuf.IsLost(SequenceNumber32((i*1000)+1), 3, 1000), false,
"Lost is true, but it's not");
sack->AddSackBlock (TcpOptionSack::SackBlock (3001, 4000));
txBuf.Update(sack->GetSackList());
NS_TEST_ASSERT_MSG_EQ (txBuf.IsLost(SequenceNumber32(1), 3, 1000), true,
"Lost is true, but it's not");
for (uint8_t i = 1; i < 10 ; ++i)
NS_TEST_ASSERT_MSG_EQ (txBuf.IsLost(SequenceNumber32((i*1000)+1), 3, 1000), false,
"Lost is true, but it's not");
}
void
TcpTxBufferTestCase::TestNextSeg ()
{