From 90b067ce0d9aaf5a2bb7bb56505ba163522a334d Mon Sep 17 00:00:00 2001
From: Bert Peters <bert@bertptrs.nl>
Date: Sun, 22 Sep 2019 19:43:42 +0200
Subject: [PATCH] Scratch running in travis.

Modern C++ is too difficult to run in travis/
---
 .travis.yml                   | 39 -----------------------------------
 2019/CMakeLists.txt           |  6 +++---
 2019/README.md                | 28 +++++++++++++++++++++++--
 2019/tests/test_solutions.cpp |  6 ++++--
 4 files changed, 33 insertions(+), 46 deletions(-)
 delete mode 100644 .travis.yml

diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 71dbe1d..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-language: cpp
-dist: bionic
-sudo: true
-
-matrix:
-    include:
-        - addons:
-            apt:
-                sources:
-                    - ubuntu-toolchain-r-test
-                    - llvm-toolchain-bionic-8
-                packages:
-                    - clang-8
-                    - libc++-8-dev
-                    - libc++abi-8-dev
-                    - libboost-filesystem-dev
-                    - libboost-program-options-dev
-                    - libgtest-dev
-          env:
-            - MATRIX_EVAL="CC=clang-8 && CXX=clang++-8"
-
-
-before_install:
-    - eval "$MATRIX_EVAL"
-
-# Install GTest properly since it is only available as a static library.
-install:
-    - mkdir -p ~/gtest_build
-    - pushd ~/gtest_build
-    - cmake /usr/src/gtest -DBUILD_SHARED_LIBS=true
-    - make && sudo make install
-    - popd
-
-# Custom directory, for the correct year
-before_script:
-    - cd 2019
-
-# CMake build
-script: cmake . && make && make test
diff --git a/2019/CMakeLists.txt b/2019/CMakeLists.txt
index 6edf706..5dea4ae 100644
--- a/2019/CMakeLists.txt
+++ b/2019/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.12)
 
 project(aoc2019)
 
-find_package(Boost REQUIRED COMPONENTS program_options filesystem)
+find_package(Boost REQUIRED COMPONENTS program_options)
 find_package(GTest REQUIRED)
 
 add_library(AoCSolutions src/implementations.hpp src/implementations.cpp src/day01.cpp src/days.hpp)
@@ -14,9 +14,9 @@ target_link_libraries(runner AoCSolutions Boost::program_options)
 
 add_executable(unit_tests tests/test_solutions.cpp)
 target_compile_features(unit_tests PUBLIC cxx_std_17)
-target_link_libraries(unit_tests AoCSolutions Boost::filesystem GTest::GTest GTest::Main)
+target_link_libraries(unit_tests AoCSolutions GTest::GTest GTest::Main)
 target_compile_definitions(unit_tests PRIVATE "TEST_SAMPLES_DIR=\"${CMAKE_SOURCE_DIR}/tests/samples\"")
 target_include_directories(unit_tests PRIVATE "${CMAKE_SOURCE_DIR}/src")
 
 enable_testing()
-gtest_discover_tests(unit_tests)
+gtest_discover_tests(unit_tests NO_PRETTY_VALUES)
diff --git a/2019/README.md b/2019/README.md
index dc723dd..160afe3 100644
--- a/2019/README.md
+++ b/2019/README.md
@@ -1,8 +1,32 @@
 # Advent of Code 2019
 
-[![Build Status](https://travis-ci.org/bertptrs/adventofcode.svg?branch=master)](https://travis-ci.org/bertptrs/adventofcode)
-
 This project contains my implementations for Advent of Code 2019. The
 goal is to create reasonably fast C++ implementations in readable and
 ergonomic C++. At the end of the contest, I will probably do a write-
 up of some sorts. 
+
+
+## How to compile
+
+Install the dependencies:
+
+- [GTest](https://github.com/google/googletest) **Note:** this project
+  by default tries to dynamically link GTest, and the Ubuntu packages
+  only provide a statically linked archive. You may need to compile it
+  for yourself.
+- [Boost.Program_options](https://www.boost.org/doc/libs/1_71_0/doc/html/program_options.html)
+
+```
+mkdir build && cd build
+cmake ..
+make
+```
+
+You can then use the generated executable `runner`.
+
+## Running tests
+
+Tests can be executed with `make test`. The `tests` folder contains a
+`samples` folder. This folder contains pairs of `XX-Y-something.in` and
+`XX-Y-something.out`, which will be taken as the expected input and
+output of the implementations. You can add your own samples to this mix.
diff --git a/2019/tests/test_solutions.cpp b/2019/tests/test_solutions.cpp
index 6a9cd6b..620c003 100644
--- a/2019/tests/test_solutions.cpp
+++ b/2019/tests/test_solutions.cpp
@@ -2,9 +2,11 @@
 
 #include <cassert>
 #include <cctype>
+#include <cstring>
 #include <charconv>
+#include <filesystem>
+#include <fstream>
 #include <string>
-#include <boost/filesystem.hpp>
 #include <gtest/gtest.h>
 #include "implementations.hpp"
 
@@ -93,7 +95,7 @@ TEST_P(SolutionsTest, TestExpectedOutcome) {
 
 static std::vector<std::string> get_samples() {
     std::vector<std::string> samples;
-    for (const auto &entry : boost::filesystem::directory_iterator(TEST_SAMPLES_DIR)) {
+    for (const auto &entry : std::filesystem::directory_iterator(TEST_SAMPLES_DIR)) {
         if (entry.path().filename().extension() == ".in") {
             samples.push_back(entry.path().string());
         }