fix: Properly write data into the data archive

src/test/loopback_connection_client.cpp

@@ -21,7 +21,7 @@ namespace rmrf::test {
 
 	void loopback_connection_client::write_data(const std::string& data) {
 		// TODO fixme
-		//this->send_data_archive.push_back(data_ptr);
+		this->send_data_archive.push_back(data);
 		if(this->mut_send_data_cb != nullptr) {
 			this->mut_send_data_cb(data);
 		}

src/test/loopback_connection_client.hpp

@@ -14,12 +14,12 @@
 namespace rmrf::test {
 
 /**
- * Use this cass to mock a connection client.
+ * Use this class to mock a connection client.
  */
 class loopback_connection_client : public rmrf::net::connection_client {
 private:
 	const rmrf::net::connection_client::incomming_data_cb mut_send_data_cb;
-	const std::vector<std::string> send_data_archive;
+	std::vector<std::string> send_data_archive;
 public:
 	/**
 	 * This constructor uses the given callback to notify the test suite that the module under test