311-Gen-CustomCapture.cpp File Reference

#include <catch2/catch.hpp>

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Functions
	TEST_CASE ("Generate random doubles across different ranges", "[generator][example][advanced]")

Function Documentation

TEST_CASE()

TEST_CASE	(	"Generate random doubles across different ranges"	,
		""	[generator][example][advanced] )

Definition at line 14 of file 311-Gen-CustomCapture.cpp.

                                            {
    // Workaround for old libstdc++
    using record = std::tuple<double, double>;
    // Set up 3 ranges to generate numbers from
    auto r1 = GENERATE(table<double, double>({
        record{3, 4},
        record{-4, -3},
        record{10, 1000}
    }));
 
    auto r2(r1);
    
    // This will take r1 by reference and r2 by value.
    // Note that there are no advantages for doing so in this example,
    // it is done only for expository purposes.
    auto number = Catch::Generators::generate( CATCH_INTERNAL_LINEINFO,
        [&r1, r2]{
            using namespace Catch::Generators;
            return makeGenerators(take(50, random(std::get<0>(r1), std::get<1>(r2))));
        }
    );
 
    REQUIRE(std::abs(number) > 0);
}

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