Added unit testing with Catch2 framework

src/main.cpp

@@ -3,12 +3,3 @@
 #include <string>
 
 int main() { return 0; }
-
-void test_config_read() {
-  const std::string CONFIG_PATH = "../config/config_example.toml";
-  Config config = get_config(CONFIG_PATH);
-  std::cout << "Config" << std::endl;
-  std::cout << "Author: " << config.contact.author << std::endl;
-  std::cout << "Email: " << config.contact.email << std::endl;
-  std::cout << "Signal: " << config.contact.signal << std::endl;
-}

src/makefile

@@ -12,5 +12,14 @@ main.o: main.cpp config.hpp
 config.o: config.cpp config.hpp
 	$(CXX) $(CXXFLAGS) -c config.cpp
 
+tests: tests.o config.o
+	g++ -std=c++17 -Wall tests.o config.o -o tests -lCatch2Main -lCatch2
+
+tests.o: tests.cpp config.hpp
+	$(CXX) $(CXXFLAGS) -c tests.cpp
+
+check: tests
+	./tests
+
 clean:
-	rm -f *.o blog
+	rm -f *.o blog tests

src/tests.cpp

@@ -0,0 +1,13 @@
+#include "config.hpp"
+#include <catch2/catch_all.hpp>
+#include <string>
+
+TEST_CASE("Checking config file read", "[config]") {
+  const std::string FILE_NAME = "../config/config_example.toml";
+
+  Config config = get_config(FILE_NAME);
+
+  REQUIRE(config.contact.author == "author");
+  REQUIRE(config.contact.email == "email@example.com");
+  REQUIRE(config.contact.signal == "signal url");
+}