Use CMake for tests

Author: ankane

.github/workflows/build.yml

@@ -21,8 +21,9 @@ jobs:
           CXXFLAGS=-std=c++17 ./configure
           make
           sudo make install
-      - run: g++ -std=c++17 -Wall -Wextra -Werror -o test/pqxx test/pqxx_test.cpp -lpqxx -lpq
-      - run: test/pqxx
+      - run: cmake -S test -B test/build
+      - run: cmake --build test/build
+      - run: test/build/pqxx_test
 
       # test install
       - run: cmake -S . -B build

.gitignore

@@ -1,2 +1 @@
 build
-/test/pqxx

README.md

@@ -106,8 +106,9 @@ To get started with development:
 git clone https://github.com/pgvector/pgvector-cpp.git
 cd pgvector-cpp
 createdb pgvector_cpp_test
-g++ -std=c++17 -Wall -Wextra -Wno-unknown-attributes -Werror -o test/pqxx test/pqxx_test.cpp -lpqxx -lpq
-test/pqxx
+cmake -S test -B test/build
+cmake --build test/build
+test/build/pqxx_test
 ```
 
 To run an example:

test/CMakeLists.txt

@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 3.18)
+
+project(test)
+
+set(CMAKE_CXX_STANDARD 17)
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-unknown-attributes -Werror")
+set(SKIP_BUILD_TEST ON)
+
+include(FetchContent)
+
+FetchContent_Declare(libpqxx GIT_REPOSITORY https://github.com/jtv/libpqxx.git GIT_TAG 7.10.0)
+FetchContent_MakeAvailable(libpqxx)
+
+add_subdirectory("${PROJECT_SOURCE_DIR}/.." pgvector)
+
+add_executable(pqxx_test pqxx_test.cpp)
+target_link_libraries(pqxx_test PRIVATE libpqxx::pqxx pgvector::pgvector)

test/pqxx_test.cpp

@@ -1,6 +1,6 @@
-#include "../include/pgvector/pqxx.hpp"
 #include <cassert>
 #include <optional>
+#include <pgvector/pqxx.hpp>
 #include <pqxx/pqxx>
 
 void setup(pqxx::connection &conn) {