Add tests + modify syntax.

src/input_output_test.cpp

@@ -0,0 +1,46 @@
+#include <experimental/filesystem>
+#include <fstream>
+#include <iostream>
+#include <string>
+
+#include "environment.h"
+#include "translator/Translator.h"
+
+int main(int, const char**) {
+  int result = 0;
+
+  std::string path = testing_directory;
+  for (auto& dir : std::experimental::filesystem::directory_iterator(path)) {
+    std::string type = dir.path().filename();
+    std::cout << "Testing " << type << std::endl;
+    for (auto& test :
+         std::experimental::filesystem::directory_iterator(dir.path())) {
+      auto sequence = SequenceTranslator();
+
+      std::ifstream input(test.path() / "input");
+      std::ifstream output(test.path() / "output");
+
+      std::string input_string((std::istreambuf_iterator<char>(input)),
+                               std::istreambuf_iterator<char>());
+      std::string output_string((std::istreambuf_iterator<char>(output)),
+                                std::istreambuf_iterator<char>());
+
+      sequence->Process(input_string);
+
+      if (sequence->Output() == output_string) {
+        std::cout << "[PASS] " << test << std::endl;
+      } else {
+        std::cout << "[FAIL] " << test << std::endl;
+        std::cout << "---[Output]------------------" << std::endl;
+        std::cout << sequence->Output() << std::endl;
+        std::cout << "-----------------------------" << std::endl;
+        std::cout << " vs " << std::endl;
+        std::cout << "---[Expected]----------------" << std::endl;
+        std::cout << output_string << std::endl;
+        std::cout << "-----------------------------" << std::endl;
+      }
+    }
+  }
+
+  return result;
+}