How can I develop generic test code and using it with the test_suite

Stephen Torri

24 Jan 2007 24 Jan '07

12:13 a.m.

I have the following code for a sample test. I was wondering how I can move code that is common to a long off different test files to a common location and use inheritance? In the code below I can do two things. If its indeed generic I can encapsulate it in a common class used in the tests. Secondly I could put test_one and test_two in a class and inherit from the parent generic class. What is the best solution for what I am trying to do? Stephen ----------CODE-------------- #include #include <fstream> using namespace boost::unit_test; using namespace boost::unit_test_framework; class A {} class B {} A* helper_run_test ( B& target_ref, std::string target_file ) { ... do work on B and return A* result } void test_one () { B& b_ref; A* helper_run_test ( b, "Apple" ); .. perform a BOOST_CHECK_EQUAL } void test_two () { B& b_ref; A* helper_run_test ( b, "Peach" ); .. perform a BOOST_CHECK_EQUAL } test_suite* init_unit_test_suite ( int, char**) { test_suite* test = BOOST_TEST_SUITE ("My test suite"); test->add ( BOOST_TEST_CASE ( &test_one ) ); test->add ( BOOST_TEST_CASE ( &test_two ) ); return test; }

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Gennadiy Rozental

25 Jan 25 Jan

4:34 p.m.

New subject: How can I develop generic test code and using it withthe test_suite

"Stephen Torri" wrote in message news:1169597636.8109.18.camel@base.torri.org...

...

I have the following code for a sample test. I was wondering how I can move code that is common to a long off different test files to a common location and use inheritance?

Why would you want to use an inheritance (just a general question)?

...

In the code below I can do two things. If its indeed generic I can encapsulate it in a common class used in the tests. Secondly I could put test_one and test_two in a class and inherit from the parent generic class. What is the best solution for what I am trying to do?

To be frank with you I do not see anything particular generic in the code below and don't really understand what you are trying to do. Could you please give some more detailes. Than I probably be able to give some recommendations.

...

Stephen

----------CODE--------------

#include #include <fstream>

using namespace boost::unit_test; using namespace boost::unit_test_framework;

You don't need secont using statement. Both namespaces are synonims.

...

class A {} class B {}

A* helper_run_test ( B& target_ref, std::string target_file ) { ... do work on B and return A* result }

void test_one () { B& b_ref;

That's invalid

...

A* helper_run_test ( b, "Apple" ); .. perform a BOOST_CHECK_EQUAL }

void test_two () { B& b_ref; A* helper_run_test ( b, "Peach" ); .. perform a BOOST_CHECK_EQUAL }

...

test_suite* init_unit_test_suite ( int, char**) { test_suite* test = BOOST_TEST_SUITE ("My test suite");

test->add ( BOOST_TEST_CASE ( &test_one ) ); test->add ( BOOST_TEST_CASE ( &test_two ) );

return test; }

I recommend you to avoid init_unit_test_suite and use BOOST_AUTO_TEST_CASE instead. Gennadiy

Ovanes Markarian

7 p.m.

New subject: How can I develop generic test code and using it withthe test_suite

Gennadiy, sorry to be off-topic. Just a general question on your statement:

...

I recommend you to avoid init_unit_test_suite and use BOOST_AUTO_TEST_CASE instead.

Do you generally recommend to avoid init_unit_test_suite? If yes, could you explain why? I have some hierarchy of unit tests which might depend on other tests. And in case of avoiding init_unit_test_suite, I would need to introduce one more level in the hierarchy, since in my case test_suite can depend on some other test_suits. Currently this kind of dependency is added in init_unit_test_suite. Thanks, Ovanes On Thu, January 25, 2007 17:34, Gennadiy Rozental wrote:

...

"Stephen Torri" wrote in message news:1169597636.8109.18.camel@base.torri.org...

...
I have the following code for a sample test. I was wondering how I can move code that is common to a long off different test files to a common location and use inheritance?

Why would you want to use an inheritance (just a general question)?

...
In the code below I can do two things. If its indeed generic I can encapsulate it in a common class used in the tests. Secondly I could put test_one and test_two in a class and inherit from the parent generic class. What is the best solution for what I am trying to do?

To be frank with you I do not see anything particular generic in the code below and don't really understand what you are trying to do. Could you please give some more detailes. Than I probably be able to give some recommendations.

...
Stephen

----------CODE--------------

#include #include <fstream>

using namespace boost::unit_test; using namespace boost::unit_test_framework;

You don't need secont using statement. Both namespaces are synonims.

...
class A {} class B {}

A* helper_run_test ( B& target_ref, std::string target_file ) { ... do work on B and return A* result }

void test_one () { B& b_ref;

That's invalid

...
A* helper_run_test ( b, "Apple" ); .. perform a BOOST_CHECK_EQUAL }

void test_two () { B& b_ref; A* helper_run_test ( b, "Peach" ); .. perform a BOOST_CHECK_EQUAL }

...
test_suite* init_unit_test_suite ( int, char**) { test_suite* test = BOOST_TEST_SUITE ("My test suite");

test->add ( BOOST_TEST_CASE ( &test_one ) ); test->add ( BOOST_TEST_CASE ( &test_two ) );

return test; }

I recommend you to avoid init_unit_test_suite and use BOOST_AUTO_TEST_CASE instead.

Gennadiy

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Gennadiy Rozental

9:53 p.m.

New subject: How can I develop generic test code and using it withthe test_suite

"Ovanes Markarian" wrote in message news:37153.194.138.18.131.1169751616.squirrel@www.keywallet.com...

...

Do you generally recommend to avoid init_unit_test_suite? If yes, could you explain why?

I have some hierarchy of unit tests which might depend on other tests. And in case of avoiding init_unit_test_suite, I would need to introduce one more level in the hierarchy, since in my case test_suite can depend on some other test_suits. Currently this kind of dependency is added in init_unit_test_suite.

init_unit_test_suite is required in comparatively small number of cases. Test unit dependency specification is one of them (though I may consider supporting dependency specification for auto test units in a future). For the most test modules (like the one in OP) you could use auto test cases instead. It's save you from unnecessary work of manual test case registration. Gennadiy

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Gennadiy Rozental
Ovanes Markarian
Stephen Torri