Added switch to output some encoding values.

src/main/java/de/fabianonline/telegram_backup/CommandLineController.java

@@ -131,6 +131,8 @@ public class CommandLineController {
 			if (CommandLineOptions.val_test != null) {
 				if (CommandLineOptions.val_test == 1) {
 					TestFeatures.test1();
+				} else if (CommandLineOptions.val_test == 2) {
+					TestFeatures.test2(user, client);
 				} else {
 					System.out.println("Unknown test " + CommandLineOptions.val_test);
 				}

src/main/java/de/fabianonline/telegram_backup/Database.java

@@ -498,6 +498,17 @@ public class Database {
 			return result;
 		} catch (Exception e) { throw new RuntimeException(e); }
 	}
+
+	public String getEncoding() {
+		try {
+			ResultSet rs = stmt.executeQuery("PRAGMA encoding");
+			rs.next();
+			return rs.getString(1);
+		} catch (SQLException e) {
+			logger.debug("SQLException: {}", e);
+			return "unknown";
+		}
+	}
 			
 	
 	public LinkedList<Chat> getListOfChatsForExport() {

src/main/java/de/fabianonline/telegram_backup/TestFeatures.java

@@ -1,12 +1,14 @@
 package de.fabianonline.telegram_backup;
 
 import com.github.badoualy.telegram.tl.api.*;
+import com.github.badoualy.telegram.api.TelegramClient;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.Statement;
 import java.sql.SQLException;
 import java.sql.ResultSet;
 import java.io.IOException;
+import java.nio.charset.Charset;
 
 class TestFeatures {
 	public static void test1() {
@@ -51,4 +53,12 @@ class TestFeatures {
 		System.out.println("Success:                 " + success);
 		System.out.println("Unsupported constructor: " + unsupported_constructor);
 	}
+	
+	public static void test2(UserManager user, TelegramClient client) {
+		// Prints system.encoding and default charset
+		System.out.println("Default Charset:   " + Charset.defaultCharset());
+		System.out.println("file.encoding:     " + System.getProperty("file.encoding"));
+		Database db = new Database(user, client, false);
+		System.out.println("Database encoding: " + db.getEncoding());
+	}
 }