Automatically download GoogleTest if needed

.github/workflows/main.yml

@@ -11,8 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Check formatting
         run: make format-check
@@ -21,17 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Install dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install \
-            google-mock \
-            googletest \
-            libgmock-dev \
-            libgtest-dev
+      - uses: actions/checkout@v4
 
       - name: Build
         run: make build

CMakeLists.txt

@@ -1,21 +1,29 @@
 cmake_minimum_required(VERSION 3.19)
 project(bootstrap-cpp-kata CXX)
-enable_testing()
 
 set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-find_package(GTest REQUIRED)
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+
+include(FetchGTest)
+fetch_gtest()
+
+include(GoogleTest)
+
+enable_testing()
 
 add_executable(main main.cpp)
 
 file(GLOB tests test_*.cpp)
 foreach(test ${tests})
     get_filename_component(name ${test} NAME_WE)
     add_executable(${name} ${test})
-    add_test(${name} ${name})
     target_link_libraries(${name} PRIVATE GTest::gmock_main)
+
+    gtest_discover_tests(${name})
 endforeach()
 
 add_custom_target(

Makefile

@@ -1,8 +1,5 @@
 all: build test
 
-export CXX := clang++
-export GTEST_COLOR := 1
-
 BUILDDIR ?= build
 SRCS := $(shell git ls-files *.cpp *.h)
 

README.md

@@ -1,4 +1,4 @@
-# Bootstrap for C++ katas
+# Bootstrap for C++ coding kata
 
 [![CI](https://github.com/Coding-Cuddles/bootstrap-cpp-kata/actions/workflows/main.yml/badge.svg)](https://github.com/Coding-Cuddles/bootstrap-cpp-kata/actions/workflows/main.yml)
 [![Replit](https://img.shields.io/badge/Try%20with%20Replit-black?logo=replit)](https://replit.com/new/github/Coding-Cuddles/bootstrap-cpp-kata)
@@ -14,8 +14,9 @@ handle all dependencies automatically.
 
 ### Prerequisites
 
-* [CMake 3.19+](https://cmake.org)
-* [GTest](https://github.com/google/googletest)
+- A compatible C++ compiler that supports at least C++17
+- [CMake](https://cmake.org)
+- [GoogleTest](https://github.com/google/googletest)
 
 ### Build
 

cmake/FetchGTest.cmake

@@ -0,0 +1,17 @@
+include(FetchContent)
+
+function(fetch_gtest)
+    find_package(GTest QUIET)
+
+    if(NOT GTest_FOUND)
+        message(STATUS "GTest not found locally. Downloading from GitHub...")
+
+        FetchContent_Declare(
+            googletest GIT_REPOSITORY https://github.com/google/googletest.git GIT_TAG v1.16.0
+        )
+
+        # Prevent overriding parent project's compiler/linker settings on Windows
+        set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+        FetchContent_MakeAvailable(googletest)
+    endif()
+endfunction()

test_something.cpp

@@ -1,10 +1,8 @@
-#include <string>
-
 #include <gmock/gmock.h>
 
-TEST(Something, SomethingPass)
+TEST(SomethingTest, BasicAssertions)
 {
-    std::string value{"foo"};
     EXPECT_TRUE(true);
-    EXPECT_EQ(value, "foo");
-}
+    EXPECT_STRNE("hello", "world");
+    EXPECT_EQ(7 * 6, 42);
+}