test: History ui tests

testing/history/data/files/io.cpp

@@ -0,0 +1,23 @@
+#include "io.h"
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+int io::numberIn() {
+	std::string input;
+	getline( std::cin, input );
+	std::stringstream stream( input );
+
+	int number;
+	stream >> number;
+	return number;
+}
+
+void io::numberOut(int num) {
+	std::cout << num;
+}
+
+void io::stringOut(const char* str) {
+	std::cout << str;
+}