TcpHtcpIncrementTest Class Reference

Testing the congestion avoidance increment on TcpHtcp. More...

Inheritance diagram for TcpHtcpIncrementTest:

Collaboration diagram for TcpHtcpIncrementTest:

Public Member Functions
	TcpHtcpIncrementTest (uint32_t cWnd, uint32_t segmentSize, uint32_t segmentsAcked, Time lastCongestion, Time firstAck, Time secondAck, uint32_t expectedCwnd, const std::string &name)
	Constructor.
Public Member Functions inherited from ns3::TestCase
	TestCase (const TestCase &)=delete
virtual	~TestCase ()
	Destructor.
std::string	GetName () const
TestCase &	operator= (const TestCase &)=delete

Private Member Functions
void	DoRun () override
	Since the calculation depends on the throughput and its associated timing, we schedule a few exact events.

Private Attributes
uint32_t	m_cWnd
	Congestion window.
uint32_t	m_expectedCwnd
	Expected cWnd.
Time	m_firstAck
	First ACK time.
Time	m_lastCongestion
	Last congestion time.
Time	m_secondAck
	Second ACK time.
uint32_t	m_segmentsAcked
	Segments already ACKed.
uint32_t	m_segmentSize
	Segment size.
Ptr< TcpSocketState >	m_state
	TCP socket state.

Additional Inherited Members
Public Types inherited from ns3::TestCase
enum	TestDuration { QUICK = 1 , EXTENSIVE = 2 , TAKES_FOREVER = 3 }
	How long the test takes to execute. More...
Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor.
void	AddTestCase (TestCase *testCase, TestDuration duration=QUICK)
	Add an individual child TestCase to this test suite.
TestCase *	GetParent () const
	Get the parent of this TestCase.
bool	IsStatusFailure () const
	Check if any tests failed.
bool	IsStatusSuccess () const
	Check if all tests passed.
void	SetDataDir (std::string directory)
	Set the data directory where reference trace files can be found.
void	ReportTestFailure (std::string cond, std::string actual, std::string limit, std::string message, std::string file, int32_t line)
	Log the failure of this TestCase.
bool	MustAssertOnFailure () const
	Check if this run should assert on failure.
bool	MustContinueOnFailure () const
	Check if this run should continue on failure.
std::string	CreateDataDirFilename (std::string filename)
	Construct the full path to a file in the data directory.
std::string	CreateTempDirFilename (std::string filename)
	Construct the full path to a file in a temporary directory.

Detailed Description

Testing the congestion avoidance increment on TcpHtcp.

Definition at line 42 of file tcp-htcp-test.cc.

Constructor & Destructor Documentation

TcpHtcpIncrementTest()

TcpHtcpIncrementTest::TcpHtcpIncrementTest	(	uint32_t	cWnd,
		uint32_t	segmentSize,
		uint32_t	segmentsAcked,
		Time	lastCongestion,
		Time	firstAck,
		Time	secondAck,
		uint32_t	expectedCwnd,
		const std::string &	name
	)

Constructor.

Parameters

cWnd	Congestion window.
segmentSize	Segment size.
segmentsAcked	Segments already ACKed.
lastCongestion	Last congestion time.
firstAck	First ACK time.
secondAck	Second ACK time.
expectedCwnd	Expected cWnd.
name	Test description.

Definition at line 78 of file tcp-htcp-test.cc.

Member Function Documentation

DoRun()

void TcpHtcpIncrementTest::DoRun ( )

overrideprivatevirtual

Since the calculation depends on the throughput and its associated timing, we schedule a few exact events.

We get the value from HTCP methods during the simulation and compare them with their associated expected values calculated from the algorithm by hand.

Implements ns3::TestCase.

Definition at line 104 of file tcp-htcp-test.cc.

References ns3::Simulator::Destroy(), ns3::TracedValue< T >::Get(), ns3::TcpHtcp::GetSsThresh(), ns3::TcpSocketState::m_cWnd, m_cWnd, m_expectedCwnd, m_firstAck, m_lastCongestion, m_secondAck, m_segmentsAcked, ns3::TcpSocketState::m_segmentSize, m_segmentSize, m_state, ns3::MilliSeconds(), NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_TEST_ASSERT_MSG_EQ, ns3::TcpHtcp::PktsAcked(), ns3::Simulator::Run(), and ns3::Simulator::Schedule().

Here is the call graph for this function:

Member Data Documentation

m_cWnd

uint32_t TcpHtcpIncrementTest::m_cWnd

private

Congestion window.

Definition at line 68 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_expectedCwnd

uint32_t TcpHtcpIncrementTest::m_expectedCwnd

private

Expected cWnd.

Definition at line 74 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_firstAck

Time TcpHtcpIncrementTest::m_firstAck

private

First ACK time.

Definition at line 72 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_lastCongestion

Time TcpHtcpIncrementTest::m_lastCongestion

private

Last congestion time.

Definition at line 71 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_secondAck

Time TcpHtcpIncrementTest::m_secondAck

private

Second ACK time.

Definition at line 73 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_segmentsAcked

uint32_t TcpHtcpIncrementTest::m_segmentsAcked

private

Segments already ACKed.

Definition at line 70 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_segmentSize

uint32_t TcpHtcpIncrementTest::m_segmentSize

private

Segment size.

Definition at line 69 of file tcp-htcp-test.cc.

Referenced by DoRun().

m_state

Ptr<TcpSocketState> TcpHtcpIncrementTest::m_state

private

TCP socket state.

Definition at line 75 of file tcp-htcp-test.cc.

Referenced by DoRun().

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The documentation for this class was generated from the following file:

• src/internet/test/tcp-htcp-test.cc