ns3::ExampleAsTestCase Class Reference

Execute an example program as a test, by comparing the output to a reference file. More...

#include "example-as-test.h"

Inheritance diagram for ns3::ExampleAsTestCase:

Collaboration diagram for ns3::ExampleAsTestCase:

Public Member Functions
	ExampleAsTestCase (const std::string name, const std::string program, const std::string dataDir, const std::string args="", const bool shouldNotErr=true)
	Constructor.
	~ExampleAsTestCase () override
	Destructor.
void	DoRun () override
	Implementation to actually run this TestCase.
virtual std::string	GetCommandTemplate () const
	Customization point for more complicated patterns to invoke the example program.
virtual std::string	GetPostProcessingCommand () const
	Customization point for tests requiring post-processing of stdout.
Public Member Functions inherited from ns3::TestCase
	TestCase (const TestCase &)=delete
virtual	~TestCase ()
	Destructor.
std::string	GetName () const
TestCase &	operator= (const TestCase &)=delete

Protected Attributes
std::string	m_args
	Any additional arguments to the program.
std::string	m_dataDir
	The source directory for the test.
std::string	m_program
	The program to run.
bool	m_shouldNotErr
	Whether error return status is a test failure.

Additional Inherited Members
Public Types inherited from ns3::TestCase
enum class	Duration { QUICK = 1 , EXTENSIVE = 2 , TAKES_FOREVER = 3 }
	How long the test takes to execute. More...
using	instead = Duration
Static Public Attributes inherited from ns3::TestCase
static constexpr auto	EXTENSIVE = Duration::EXTENSIVE
static constexpr auto	QUICK = Duration::QUICK
static constexpr auto	TAKES_FOREVER
Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor.
void	AddTestCase (TestCase *testCase, Duration duration=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

Execute an example program as a test, by comparing the output to a reference file.

User can subclass and override the GetCommandTemplate() and GetPostProcessingCommand() methods if more complex example invocation patterns are required.

See also

examples-as-tests-test-suite.cc

Definition at line 48 of file example-as-test.h.

Constructor & Destructor Documentation

ExampleAsTestCase()

ns3::ExampleAsTestCase::ExampleAsTestCase	(	const std::string	name,
		const std::string	program,
		const std::string	dataDir,
		const std::string	args = "",
		const bool	shouldNotErr = true
	)

Constructor.

Parameters

[in]	name	The test case name, typically the program name and summary of the arguments, such as my-example-foo
[in]	program	The actual example program names, such as my-example
[in]	dataDir	The location of the reference file. This is normally provided by the symbol NS_TEST_SOURCEDIR in the module-examples-test-suite.cc file. The reference file should be named after the test case name, for example my-example-foo.log. If you use the --update argument to test.py or test-runner the reference file will be created with the correct name.
[in]	args	Any additional arguments to the program.
[in]	shouldNotErr	Whether an error return status should be considered a test failure. This is useful when testing error detection which might return a non-zero status. The output (on std::cout and std::cerr) will be compared to the reference logs as normal.

~ExampleAsTestCase()

ns3::ExampleAsTestCase::~ExampleAsTestCase ( )

override

Destructor.

Member Function Documentation

DoRun()

void ns3::ExampleAsTestCase::DoRun ( )

overridevirtual

Implementation to actually run this TestCase.

Subclasses should override this method to conduct their tests.

Implements ns3::TestCase.

GetCommandTemplate()

virtual std::string ns3::ExampleAsTestCase::GetCommandTemplate ( ) const

virtual

Customization point for more complicated patterns to invoke the example program.

Returns

The string to be given to the ns3 --command-template= argument.

Reimplemented in MpiTestCase.

GetPostProcessingCommand()

virtual std::string ns3::ExampleAsTestCase::GetPostProcessingCommand ( ) const

virtual

Customization point for tests requiring post-processing of stdout.

For example to sort return "| sort"

One common case is to mask memory addresses, which can change when things are built on different platforms, recompiled locally, or even from run to run. A simple post-processing filter could be

‘"| sed -E 's/0x[0-9a-fA-F]{8,}/0x-address/g’"`

Default is "", no additional processing.

Returns

The string of post-processing commands

Reimplemented in ns3::tests::CommandLineExampleTestCase, and MpiTestCase.

Member Data Documentation

m_args

std::string ns3::ExampleAsTestCase::m_args

protected

Any additional arguments to the program.

Definition at line 113 of file example-as-test.h.

Referenced by MpiTestCase::GetCommandTemplate().

m_dataDir

std::string ns3::ExampleAsTestCase::m_dataDir

protected

The source directory for the test.

Definition at line 112 of file example-as-test.h.

m_program

std::string ns3::ExampleAsTestCase::m_program

protected

The program to run.

Definition at line 111 of file example-as-test.h.

m_shouldNotErr

bool ns3::ExampleAsTestCase::m_shouldNotErr

protected

Whether error return status is a test failure.

Definition at line 114 of file example-as-test.h.

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

• src/core/model/example-as-test.h