feat: add test harness

CMakeLists.txt

@@ -3,3 +3,5 @@ project(fishbowl)
 
 add_subdirectory(engine)
 add_subdirectory(client)
+
+enable_testing()

CMakePresets.json

@@ -0,0 +1,42 @@
+{
+    "version": 10,
+    "cmakeMinimumRequired": {
+        "major": 3,
+        "minor": 11,
+        "patch": 0
+    },
+    "configurePresets": [
+        {
+            "name": "default",
+            "displayName": "Default",
+            "binaryDir": "build"
+        },
+        {
+            "name": "default-with-tests",
+            "displayName": "Default (with tests)",
+            "inherits": "default",
+            "cacheVariables": {
+                "FISHBONE_BUILD_TESTS": "ON"
+            }
+        }
+    ],
+    "buildPresets": [
+        {
+            "name": "default",
+            "configurePreset": "default"
+        },
+        {
+            "name": "default-with-tests",
+            "configurePreset": "default-with-tests"
+        }
+    ],
+    "testPresets": [
+        {
+            "name": "default",
+            "configurePreset": "default-with-tests",
+            "output": {
+                "outputOnFailure": true
+            }
+        }
+    ]
+}

engine/CMakeLists.txt

@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 3.11)
 project(fishbone)
 
+option(FISHBONE_BUILD_TESTS "Compile tests for fishbone" OFF)
+
 if(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/cmake/CPM.cmake")
 	message(STATUS "Downloading CPM.cmake...")
 	file(MAKE_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
@@ -56,3 +58,11 @@ fb_add_dep(fishbone lz4)
 
 # Networking
 fb_add_dep(fishbone enet)
+
+# Testing
+if(FISHBONE_BUILD_TESTS)
+	include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/deps/catch2.cmake")
+	list(APPEND CMAKE_MODULE_PATH ${Catch2_SOURCE_DIR}/extras)
+	enable_testing()
+	add_subdirectory(tests)
+endif()

engine/cmake/deps/catch2.cmake

@@ -0,0 +1,7 @@
+include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/CPM.cmake")
+
+CPMAddPackage(
+	NAME "catch2"
+	GITHUB_REPOSITORY "catchorg/Catch2"
+	GIT_TAG "v3.15.0"
+)

engine/tests/CMakeLists.txt

@@ -0,0 +1,9 @@
+include (CTest)
+include (Catch)
+
+file(GLOB_RECURSE SRCS src/**.cc src/**.c)
+
+add_executable(fishbone_test ${SRCS})
+target_link_libraries(fishbone_test PRIVATE fishbone Catch2::Catch2WithMain)
+target_include_directories(fishbone_test PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+catch_discover_tests(fishbone_test)

engine/tests/src/placeholder.cc

@@ -0,0 +1 @@
+#include <catch2/catch_test_macros.hpp>