cmake_minimum_required(VERSION 3.14)
project(sparkfun_tests LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# --------------------------------------------------------------------------
# Google Test (fetched automatically)
# --------------------------------------------------------------------------
include(FetchContent)
FetchContent_Declare(
    googletest
    GIT_REPOSITORY https://github.com/google/googletest.git
    GIT_TAG        v1.14.0
)
# Prevent gtest from overriding compiler/linker options on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(googletest)

enable_testing()

# --------------------------------------------------------------------------
# Include paths -- same headers used by Arduino, but compiled on host
# --------------------------------------------------------------------------
set(LIB_DIR ${CMAKE_SOURCE_DIR}/../lib)

include_directories(
    ${LIB_DIR}/hal          # hal.h
    ${LIB_DIR}/app          # blink_app.h
    ${CMAKE_SOURCE_DIR}/mocks  # mock_hal.h, sim_hal.h
)

# --------------------------------------------------------------------------
# Unit tests (Google Mock)
# --------------------------------------------------------------------------
add_executable(test_blink_unit
    test_blink_unit.cpp
)
target_link_libraries(test_blink_unit
    GTest::gtest_main
    GTest::gmock
)

# --------------------------------------------------------------------------
# System tests (SimHal)
# --------------------------------------------------------------------------
add_executable(test_blink_system
    test_blink_system.cpp
)
target_link_libraries(test_blink_system
    GTest::gtest_main
)

# --------------------------------------------------------------------------
# I2C example tests
# --------------------------------------------------------------------------
add_executable(test_i2c_example
    test_i2c_example.cpp
)
target_link_libraries(test_i2c_example
    GTest::gtest_main
)

# --------------------------------------------------------------------------
# Register with CTest
# --------------------------------------------------------------------------
include(GoogleTest)
gtest_discover_tests(test_blink_unit)
gtest_discover_tests(test_blink_system)
gtest_discover_tests(test_i2c_example)