positional_arguments_test.cpp

#include "catch/catch.hpp"
#include "translations.h"
#include <stdio.h>
#include <string.h>

void check_eq( std::string a, std::string b )
{
    CHECK( a == b );
}

// Note: we can't test positional arguments here yet: the behaviors differs depending on localization
TEST_CASE( "Test translate macro" )
{
    check_eq( _( "%%hello%%" ), "%%hello%%" );
    check_eq( _( "hello" ), "hello" );
    check_eq( _( "%%" ), "%%" );
    check_eq( _( "" ), "" );
    check_eq( _( "%s" ), "%s" );
}

#ifndef LOCALIZE

void check_strip( std::vector<char> &buffer, const std::string &input_str,
                  const std::string &output_str )
{
    char *str = &buffer[0];
    strcpy( str, input_str.c_str() );
    check_eq( _( str ), output_str );
}

TEST_CASE( "Test positional argument stripping" )
{
    check_eq( _( "%1$s" ), "%s" );
    check_eq( _( "%27s" ), "%27s" );
    check_eq( _( "%1$s" ), "%s" );
    check_eq( _( "%2$s" ), "%s" );
    check_eq( _( "%1$0.4f" ), "%0.4f" );
    check_eq( _( "%1$0.4f %2f" ), "%0.4f %2f" );
    check_eq( _( "%1$0.4f %2$f" ), "%0.4f %f" );
    check_eq( _( "%" ), "%" );
    check_eq( _( "%1$s %1$s" ), "%s %s" );
    // We are intentionally reusing the same buffer here, so that the address of C string stays the same
    std::vector<char> buffer( 1024, '\0' );
    check_strip( buffer, "A text that lacks positional arguments.",
                 "A text that lacks positional arguments." );
    check_strip( buffer, "%1$s %2$s %3$s", "%s %s %s" );
    check_strip( buffer, "%3$s %2$s %1$s", "%s %s %s" );
}

#endif