cmake_minimum_required(VERSION 2.8.7)

project(GSLTests CXX)

add_subdirectory(unittest-cpp)

include_directories(
    ../include
    ./unittest-cpp
)

add_definitions(-DGSL_THROW_ON_CONTRACT_VIOLATION)

if(MSVC14 OR MSVC12) # has the support we need
    # remove unnecessary warnings about unchecked iterators
    add_definitions(-D_SCL_SECURE_NO_WARNINGS)
    add_compile_options(/W4)
else()
    include(CheckCXXCompilerFlag)
    CHECK_CXX_COMPILER_FLAG("-std=c++14" COMPILER_SUPPORTS_CXX14)
    CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
    if(COMPILER_SUPPORTS_CXX14)
    	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -Wall -Wno-missing-braces")
    elseif(COMPILER_SUPPORTS_CXX11)
    	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wno-missing-braces")
    else()
      message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
    endif()
endif()

if (NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/unittest-cpp)
  message(FATAL_ERROR "Could not find unittest-cpp enlistment. Please run 'git clone https://github.com/Microsoft/unittest-cpp.git unittest-cpp' in the tests directory")
endif()

function(add_gsl_test name)
    add_executable(${name} ${name}.cpp ../include/gsl.h ../include/gsl_assert.h ../include/gsl_util.h ../include/multi_span.h ../include/span.h ../include/string_span.h)
    target_link_libraries(${name} UnitTest++)
    install(TARGETS ${name}
        RUNTIME DESTINATION bin
    )
    add_test(
      ${name}
      ${name}
    )
endfunction()

add_gsl_test(span_tests)
add_gsl_test(multi_span_tests)
add_gsl_test(strided_span_tests)
add_gsl_test(string_span_tests)
add_gsl_test(at_tests)
add_gsl_test(bounds_tests)
add_gsl_test(notnull_tests)
add_gsl_test(assertion_tests)
add_gsl_test(utils_tests)
add_gsl_test(owner_tests)