From a8d539023dd84de9c852fc42e3d348272deddce0 Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Fri, 2 Mar 2018 10:13:20 -0800
Subject: [PATCH] Handle subdirectories existing in parsers' examples folders

---
 test/helpers/file_helpers.cc      | 3 +++
 test/helpers/read_test_entries.cc | 9 +++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/test/helpers/file_helpers.cc b/test/helpers/file_helpers.cc
index 354a1731..f2da6b77 100644
--- a/test/helpers/file_helpers.cc
+++ b/test/helpers/file_helpers.cc
@@ -25,7 +25,10 @@ int get_modified_time(const string &path) {
 }
 
 string read_file(const string &path) {
+  struct stat file_stat;
+  if (stat(path.c_str(), &file_stat) != 0 || (file_stat.st_mode & S_IFMT) != S_IFREG) return "";
   ifstream file(path, std::ios::binary);
+  if (!file.good()) return "";
   istreambuf_iterator<char> file_iterator(file), end_iterator;
   string content(file_iterator, end_iterator);
   file.close();
diff --git a/test/helpers/read_test_entries.cc b/test/helpers/read_test_entries.cc
index a7eb0518..f5fc5a84 100644
--- a/test/helpers/read_test_entries.cc
+++ b/test/helpers/read_test_entries.cc
@@ -4,6 +4,7 @@
 #include <regex>
 #include "helpers/file_helpers.h"
 
+using std::move;
 using std::regex;
 using std::regex_search;
 using std::regex_replace;
@@ -95,10 +96,10 @@ vector<ExampleEntry> examples_for_language(string language_name) {
   vector<ExampleEntry> result;
   string examples_directory = join_path({"test", "fixtures", "grammars", language_name, "examples"});
   for (string &filename : list_directory(examples_directory)) {
-    result.push_back({
-      filename,
-      read_file(join_path({examples_directory, filename}))
-    });
+    auto content = read_file(join_path({examples_directory, filename}));
+    if (!content.empty()) {
+      result.push_back({filename, move(content)});
+    }
   }
   return result;
 }