project(mytest C)

cmake_minimum_required(VERSION 2.8)

enable_testing()
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
file(WRITE ${CMAKE_BINARY_DIR}/test.c "int main() { return 0; }\n")

add_executable(myfirsttest ${CMAKE_BINARY_DIR}/test.c)

add_test(myfirsttest myfirsttest)