Tidy up CI test #204

	name: Tests
	on:
	- push
	- pull_request

	env:
	build_dir: ${{ github.workspace }}/build
	install_test_dir: ${{ github.workspace }}/install-test

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-20.04
	- ubuntu-22.04
	- macos-11
	- macos-12
	- macos-13

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Select Xcode 15.0 (for macOS 13)
	run: sudo xcode-select -s "/Applications/Xcode_15.0.app"
	if: matrix.os == 'macos-13'

	- name: Configure CMake
	run: cmake -B ${{ env.build_dir }}

	- name: Build tests
	run: cmake --build ${{ env.build_dir }}

	- name: Run tests
	run: ctest --build-config
	working-directory: ${{ env.build_dir }}

	- name: Run installation
	run: sudo cmake --install ${{ env.build_dir }}

	- name: Prepare installation test directory
	run: mkdir -p ${{ env.install_test_dir }}

	- name: Test installation
	run: \|
	cat <<EOS > main.cpp
	#include <iostream>
	#include <tmp/file>
	int main() {
	std::cout << tmp::file().release().native();
	}
	EOS
	cat <<EOS > CMakeLists.txt
	cmake_minimum_required(VERSION 3.12)
	project(install-test LANGUAGES CXX)
	find_package(tmp REQUIRED)
	add_executable(install-test main.cpp)
	target_link_libraries(install-test tmp::tmp)
	EOS
	cmake -B .
	cmake --build .
	test -f $(./cmake-test)
	working-directory: ${{ env.install_test_dir }}

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