From 584d22dece052cdd89f4fbc8032b4890e06e3c76 Mon Sep 17 00:00:00 2001
From: Michael Mandl <mandlm@molez.net>
Date: Fri, 20 Oct 2023 10:58:31 +0200
Subject: [PATCH 1/3] feat: enable sccache

---
 .nix/flake.nix      | 1 +
 CMakeLists.txt      | 1 +
 cmake/sccache.cmake | 6 ++++++
 3 files changed, 8 insertions(+)
 create mode 100644 cmake/sccache.cmake

diff --git a/.nix/flake.nix b/.nix/flake.nix
index 16172ef..8ea9b96 100644
--- a/.nix/flake.nix
+++ b/.nix/flake.nix
@@ -15,6 +15,7 @@
             # building
             gcc
             cmake
+            sccache
 
             # pre-commit
             pre-commit
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dec0741..494be3f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,6 +8,7 @@ project(
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
 
 include(ExportCompileCommands)
+include(sccache)
 
 configure_file("${PROJECT_SOURCE_DIR}/include/version.h.in"
                "${PROJECT_BINARY_DIR}/include/version.h")
diff --git a/cmake/sccache.cmake b/cmake/sccache.cmake
new file mode 100644
index 0000000..52adea6
--- /dev/null
+++ b/cmake/sccache.cmake
@@ -0,0 +1,6 @@
+find_program(SCCACHE_FOUND sccache)
+
+if(SCCACHE_FOUND)
+  set(CMAKE_C_COMPILER_LAUNCHER sccache)
+  set(CMAKE_CXX_COMPILER_LAUNCHER sccache)
+endif()

From 75d3fc3547557b6e71f2be43f9f73f071afc6bcc Mon Sep 17 00:00:00 2001
From: Michael Mandl <mandlm@molez.net>
Date: Fri, 20 Oct 2023 10:58:41 +0200
Subject: [PATCH 2/3] feat: enable Ninja

---
 .nix/flake.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.nix/flake.nix b/.nix/flake.nix
index 8ea9b96..ee64884 100644
--- a/.nix/flake.nix
+++ b/.nix/flake.nix
@@ -15,6 +15,7 @@
             # building
             gcc
             cmake
+            ninja
             sccache
 
             # pre-commit

From a286c514f5ecdf8ed8658673e2c147570e2a760d Mon Sep 17 00:00:00 2001
From: Michael Mandl <mandlm@molez.net>
Date: Fri, 20 Oct 2023 10:59:30 +0200
Subject: [PATCH 3/3] test: add dummy tests

---
 CMakeLists.txt       | 10 ++++++++++
 tests/CMakeLists.txt | 14 ++++++++++++++
 tests/dummy.cpp      |  4 ++++
 3 files changed, 28 insertions(+)
 create mode 100644 tests/CMakeLists.txt
 create mode 100644 tests/dummy.cpp

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 494be3f..6508d20 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,6 +10,12 @@ list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
 include(ExportCompileCommands)
 include(sccache)
 
+if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+  include(CTest)
+endif()
+
+include(FetchContent)
+
 configure_file("${PROJECT_SOURCE_DIR}/include/version.h.in"
                "${PROJECT_BINARY_DIR}/include/version.h")
 
@@ -20,3 +26,7 @@ target_compile_features(hello PUBLIC cxx_std_20)
 
 target_include_directories(hello PRIVATE "${PROJECT_BINARY_DIR}/include"
                                          "${PROJECT_SOURCE_DIR}/include")
+
+if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+  add_subdirectory(tests)
+endif()
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..5b6fb53
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,14 @@
+FetchContent_Declare(
+  catch2
+  GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+  GIT_TAG v3.4.0)
+FetchContent_MakeAvailable(catch2)
+
+add_executable(dummy_tests dummy.cpp)
+
+target_compile_features(dummy_tests PRIVATE cxx_std_20)
+
+target_link_libraries(dummy_tests PRIVATE Catch2::Catch2WithMain)
+
+include(Catch)
+catch_discover_tests(dummy_tests)
diff --git a/tests/dummy.cpp b/tests/dummy.cpp
new file mode 100644
index 0000000..cf61e0b
--- /dev/null
+++ b/tests/dummy.cpp
@@ -0,0 +1,4 @@
+#include <catch2/catch_test_macros.hpp>
+
+TEST_CASE("dummy", "dummy tests") { REQUIRE(1 + 1 == 2); }
+TEST_CASE("dummy fails", "dummy tests") { REQUIRE_FALSE(1 + 1 != 2); }