new project structure

untests/CMakeLists.txt

@@ -0,0 +1,32 @@
+# 3.11 version is required for `FetchContent`
+cmake_minimum_required(VERSION 3.11 FATAL_ERROR)
+
+project(flat.hpp.untests)
+
+set(CATCH_BUILD_TESTING OFF CACHE BOOL "" FORCE)
+
+include(FetchContent)
+FetchContent_Declare(
+    catch2
+    GIT_REPOSITORY https://github.com/catchorg/catch2)
+
+FetchContent_GetProperties(catch2)
+if(NOT catch2_POPULATED)
+    FetchContent_Populate(catch2)
+    add_subdirectory(${catch2_SOURCE_DIR} ${catch2_BINARY_DIR})
+endif()
+
+option(BUILD_WITH_COVERAGE "Build with coverage" OFF)
+if(BUILD_WITH_COVERAGE AND (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang"))
+    set(COVERAGE_FLAGS "--coverage")
+    set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${COVERAGE_FLAGS}")
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${COVERAGE_FLAGS}")
+    set(CMAKE_LINKER_FLAGS_DEBUG "${CMAKE_LINKER_FLAGS_DEBUG} ${COVERAGE_FLAGS}")
+endif()
+
+file(GLOB UNTESTS_SOURCES "*.cpp" "*.hpp")
+add_executable(${PROJECT_NAME} ${UNTESTS_SOURCES})
+target_link_libraries(${PROJECT_NAME}
+    Catch2
+    ecs.hpp)
+add_test(${PROJECT_NAME} ${PROJECT_NAME})

untests/catch_main.cpp

@@ -0,0 +1,9 @@
+/*******************************************************************************
+ * This file is part of the "https://github.com/blackmatov/ecs.hpp"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018-2019 Matvey Cherevko
+ ******************************************************************************/
+
+#define CATCH_CONFIG_MAIN
+#define CATCH_CONFIG_FAST_COMPILE
+#include <catch2/catch.hpp>