Hello,
I would like to use data test cases. The problem that comes with that, is that I want to use objects that needs the
application to be initialized before they are instantiated. Example is that an object that uses MPI needs to habe
MPI_Init called before.
This example code shows the order in which different hooks are run:
#define BOOST_TEST_DYN_LINK
// #define BOOST_TEST_MAIN
#include
#include
#include
#include
#include <iostream>
#include <string>
#include <vector>
using namespace std;
struct GlobalFixture {
GlobalFixture()
{
cout << "GlobalFixture" << endl;
}
~GlobalFixture() { }
};
BOOST_GLOBAL_FIXTURE(GlobalFixture);
struct Test : public std::string { // derive from string to get operator<< that boost requires
Test() { cout << "Object to test" << endl; }
};
namespace bdata = boost::unit_test::data;
template <class T>
class RuntimeDataset {
public:
using sample = typename T::value_type;;
enum { arity = 1 };
T data;
explicit RuntimeDataset(T _data) {
cout << "Dataset constructor" << endl;
data = _data;
}
bdata::size_t size() const {
return data.size();
}
typename T::const_iterator begin() const {
return data.cbegin();
}
};
namespace boost { namespace unit_test { namespace data { namespace monomorphic {
template <class T>
struct is_dataset : boost::mpl::true_ {};
}}}}
struct Fixture {
Fixture() {
cout << "Fixture" << endl;
}
};
BOOST_AUTO_TEST_SUITE(MySuite)
BOOST_DATA_TEST_CASE_F(
Fixture,
test1,
RuntimeDataset( { Test() } ), // This should be evaluated when the test is about to run
input)
{
BOOST_TEST(true);
cout << "Data test case" << endl;
}
BOOST_AUTO_TEST_SUITE_END()
// initialization function:
bool init_unit_test()
{
cout << "init_unit_test" << endl;
return true;
}
// entry point:
int main(int argc, char* argv[])
{
cout << "main" << endl;
int retCode = boost::unit_test::unit_test_main( &init_unit_test, argc, argv );
return retCode;
}
I've removed some code parts, but it should compile right away using
mpic++ -std=c++11 -lboost_unit_test_framework boosttesting.cpp
Its output is
Object to test
Dataset constructor
main
init_unit_test
GlobalFixture
Running 1 test case...
Fixture
Data test case
*** No errors detected
So, before I have any chance to do my own initialization code, the Test object and the dataset is constructed.
I have posted this to the user mailing list, but still looking for a way to work around that.
Do you have any idea how I can do initialization before data is instantiated?
Thanks,
Florian
