martinmoene
commented
8 years ago You need to provide the test environment, type lest::env, variable $.
For example:
// using EXPECT from a function called from a CASE, single-file test program
#include "lest.hpp"
#define CASE( name ) lest_CASE( specification, name )
static lest::tests specification;
CASE( "Call a lambda that uses EXPECT" )
{
auto foo = [ &$ ]( int a, int b ){ EXPECT( a == b ); };
foo( 1, 1 );
foo( 1, 2 );
}
void bar( lest::env & $, int a, int b )
{
EXPECT( a == b );
}
CASE( "Call a function that uses EXPECT" )
{
bar( $, 1, 1 );
bar( $, 1, 2 );
}
// or, via a macro if you like:
#define mbar( a, b ) \
bar( $, a, b )
CASE( "Call a macro that calls a function that uses EXPECT" )
{
mbar( 1, 1 );
mbar( 1, 2 );
}
int main( int argc, char * argv[] )
{
return lest::run( specification, argc, argv, std::cout );
}Compile & run:
prompt>g++ -Wall -Wextra -std=c++11 -Dlest_FEATURE_AUTO_REGISTER -I. -o main.exe main.cpp && main --pass
main.cpp:11: passed: Call a lambda that uses EXPECT: a == b for 1 == 1
main.cpp:11: failed: Call a lambda that uses EXPECT: a == b for 1 == 2
main.cpp:19: passed: Call a function that uses EXPECT: a == b for 1 == 1
main.cpp:19: failed: Call a function that uses EXPECT: a == b for 1 == 2
main.cpp:19: passed: Call a macro that calls a function that uses EXPECT: a == b for 1 == 1
main.cpp:19: failed: Call a macro that calls a function that uses EXPECT: a == b for 1 == 2
3 out of 3 selected tests failed.```
MariusDe
Hi, again a basic question about a simple use-case: what options are available for users which need stand-alone functions which use lest related macros (like EXPECT(), etc.)? My use-case would be a (reusable) function which needs to be called repeatedly from one or more CASE()s.
I tried the classic approaches: stand-alone function defined outside of CASE() as well as lambda function - defined inside the CASE(), which contains EXPECT() calls- but I did not managed to have working code (gcc 4.8.1). Here is the error when calling the lambda function containing the EXPECT() calls:
Cheers, Marius