Add logger class

src/logger.cpp

@@ -0,0 +1,21 @@
+#include "logger.h"
+
+Logger::Logger(){
+    log_path = "./";
+    file_name = "log.csv"; 
+    ifstream filecheck(file_name);
+
+    if( !filecheck.good() ){
+        ofstream outfile_(log_path + file_name);
+        outfile_.close();
+    }
+
+    outfile.open(log_path + file_name, ios_base::app);
+}
+
+Logger::~Logger(){}
+
+void Logger::log(const string & line){
+    outfile << line.c_str() << std::endl;
+}
+

src/logger.h

@@ -0,0 +1,20 @@
+#ifndef LOGGER_H_
+#define LOGGER_H_
+#include <string>
+#include <fstream>
+using namespace std;
+
+class Logger {
+public:
+    Logger();
+    virtual ~Logger();
+    void log(const string &line);
+
+private:
+    ofstream outfile;
+    string log_path;
+    string file_name;
+
+};
+
+#endif  /* LOGGER_H_  */

tests/run_tests.sh

@@ -1 +1 @@
-googletest ./test_main.cpp ../src/tools.cpp ./test_tools.cpp
+googletest ./test_main.cpp ../src/tools.cpp ../src/logger.cpp ./test_tools.cpp ./test_logger.cpp

tests/test_logger.cpp

@@ -0,0 +1,18 @@
+#include <gtest/gtest.h>
+#include "../src/logger.h"
+#include <fstream>
+#include <stdio.h>
+using namespace std;
+
+TEST(Logger, log) {
+    Logger log;
+    char filepath[10] = "./log.csv";
+
+    ifstream Infield(filepath);
+    ASSERT_TRUE( Infield.good() );
+
+    remove(filepath);
+
+    fstream Infield2(filepath);
+    ASSERT_TRUE( !Infield2.good() );
+}