diff --git a/multibyte_test/Screenshot_2014-10-01-23-30-00.png b/multibyte_test/Screenshot_2014-10-01-23-30-00.png
new file mode 100644
index 00000000..670f82e9
Binary files /dev/null and b/multibyte_test/Screenshot_2014-10-01-23-30-00.png differ
diff --git a/multibyte_test/Screenshot_2014-10-01-23-30-20.png b/multibyte_test/Screenshot_2014-10-01-23-30-20.png
new file mode 100644
index 00000000..77dd20f8
Binary files /dev/null and b/multibyte_test/Screenshot_2014-10-01-23-30-20.png differ
diff --git a/multibyte_test/adb_log.txt b/multibyte_test/adb_log.txt
new file mode 100644
index 00000000..a0028930
--- /dev/null
+++ b/multibyte_test/adb_log.txt
@@ -0,0 +1,95 @@
+D/MyActivity(20387): emit ascii
+D/MyActivity(20387): emit ascii2
+D/MyActivity(20387): emit multibyteCharactors
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii2, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors2, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: return data plain, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: return data object, data: {"data":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: return data json, data: {"data":"abcABC123!\"#"}
+D/dalvikvm(20387): GC_FOR_ALLOC freed 465K, 3% free 17278K/17776K, paused 10ms, total 10ms
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii2, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors2, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: return data plain, data: {"ascii":"abcABC123!"#"}
+D/MyActivity(20387): event: pong, test_type: return data object, data: {"data":"{\"ascii\":\"abcABC123!\"#\"}"}
+D/MyActivity(20387): event: pong, test_type: return data json, data: {"data":"{\"ascii\":\"abcABC123!\"#\"}"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii2, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors2, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: return data plain, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: return data object, data: {"data":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: return data json, data: {"data":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii2, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii2, data: {"ascii2":"abcABC123!#"}
+D/dalvikvm(20387): GC_FOR_ALLOC freed 488K, 3% free 17303K/17824K, paused 10ms, total 10ms
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors2, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: return data plain, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: return data object, data: {"data":"{\"ascii2\":\"abcABC123!#\"}"}
+D/MyActivity(20387): event: pong, test_type: return data json, data: {"data":"{\"ascii2\":\"abcABC123!#\"}"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii2, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors2, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: return data plain, data: あいうえお
+D/MyActivity(20387): event: pong, test_type: return data object, data: {"data":"あいうえお"}
+D/MyActivity(20387): event: pong, test_type: return data json, data: {"data":"あいうえお"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii, data: abcABC123!"#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii, data: {"ascii":"abcABC123!\"#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain ascii2, data: abcABC123!#
+D/MyActivity(20387): event: pong, test_type: socket.io object ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io json ascii2, data: {"ascii2":"abcABC123!#"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors, data: {"multibyteCharactors":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io plain multibyteCharactors2, data: BDFHJ
+D/MyActivity(20387): event: pong, test_type: socket.io object multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: socket.io json multibyteCharactors2, data: {"multibyteCharactors2":"BDFHJ"}
+D/MyActivity(20387): event: pong, test_type: return data plain, data: {"multibyteCharactors":"あいうえお"}
+D/MyActivity(20387): event: pong, test_type: return data object, data: {"data":"{\"multibyteCharactors\":\"あいうえお\"}"}
+D/MyActivity(20387): event: pong, test_type: return data json, data: {"data":"{\"multibyteCharactors\":\"あいうえお\"}"}
\ No newline at end of file
diff --git a/multibyte_test/android/multibyteChecker/.gitignore b/multibyte_test/android/multibyteChecker/.gitignore
new file mode 100644
index 00000000..afbdab33
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/.gitignore
@@ -0,0 +1,6 @@
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
diff --git a/multibyte_test/android/multibyteChecker/app/.gitignore b/multibyte_test/android/multibyteChecker/app/.gitignore
new file mode 100644
index 00000000..796b96d1
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/multibyte_test/android/multibyteChecker/app/build.gradle b/multibyte_test/android/multibyteChecker/app/build.gradle
new file mode 100644
index 00000000..3044dafe
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/build.gradle
@@ -0,0 +1,26 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 19
+    buildToolsVersion "20.0.0"
+
+    defaultConfig {
+        applicationId "com.example.multibytechecker.multibytechecker"
+        minSdkVersion 19
+        targetSdkVersion 19
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            runProguard false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile 'com.github.nkzawa:socket.io-client:0.1.3'
+    compile 'com.google.code.gson:gson:+'
+}
diff --git a/multibyte_test/android/multibyteChecker/app/proguard-rules.pro b/multibyte_test/android/multibyteChecker/app/proguard-rules.pro
new file mode 100644
index 00000000..c722b011
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/proguard-rules.pro
@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/maimuzo/OutOfBackup/android-sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/multibyte_test/android/multibyteChecker/app/src/androidTest/java/com/example/multibytechecker/multibytechecker/ApplicationTest.java b/multibyte_test/android/multibyteChecker/app/src/androidTest/java/com/example/multibytechecker/multibytechecker/ApplicationTest.java
new file mode 100644
index 00000000..3ba4165e
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/androidTest/java/com/example/multibytechecker/multibytechecker/ApplicationTest.java
@@ -0,0 +1,13 @@
+package com.example.multibytechecker.multibytechecker;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}
\ No newline at end of file
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/AndroidManifest.xml b/multibyte_test/android/multibyteChecker/app/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..578cb393
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/AndroidManifest.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.multibytechecker.multibytechecker" >
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".MyActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/java/com/example/multibytechecker/multibytechecker/MyActivity.java b/multibyte_test/android/multibyteChecker/app/src/main/java/com/example/multibytechecker/multibytechecker/MyActivity.java
new file mode 100644
index 00000000..12d51a4b
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/java/com/example/multibytechecker/multibytechecker/MyActivity.java
@@ -0,0 +1,86 @@
+package com.example.multibytechecker.multibytechecker;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
+
+import com.github.nkzawa.emitter.Emitter;
+import com.github.nkzawa.socketio.client.IO;
+import com.github.nkzawa.socketio.client.Socket;
+
+import java.net.URISyntaxException;
+
+
+public class MyActivity extends Activity {
+    private static final String TAG = MyActivity.class.getSimpleName();
+    private TextView mTextLog;
+
+
+    public static final String DEFUALT_SERVER_URL = "http://location.dev.d-p-s.jp";
+    private Socket socket;
+
+    private static final String ascii = "abcABC123!\"#";
+    private static final String ascii2 = "abcABC123!#";
+    private static final String multibyteCharactors = "あいうえお";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_my);
+        mTextLog = (TextView) findViewById(R.id.text_log);
+
+        findViewById(R.id.button_ping1).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Log.d(TAG, "emit ascii");
+                socket.emit("ping", "android plain ascii", ascii);
+                socket.emit("ping", "android json ascii", "{\"ascii\":\"" + ascii + "\"}");
+                Log.d(TAG, "emit ascii2");
+                socket.emit("ping", "android plain ascii2", ascii2);
+                socket.emit("ping", "android json ascii2", "{\"ascii2\":\"" + ascii2 + "\"}");
+                Log.d(TAG, "emit multibyteCharactors");
+                socket.emit("ping", "android plain mutibyte charactor", multibyteCharactors);
+                socket.emit("ping", "android json multibyte charactor", "{\"multibyteCharactors\":\"" + multibyteCharactors + "\"}");
+            }
+        });
+
+        IO.Options opts = new IO.Options();
+        Log.d(TAG, "opts.forceNew: " + opts.forceNew + ", opts.reconnection: " + opts.reconnection);
+        opts.forceNew = true;
+        opts.reconnection = false;
+
+        try {
+            socket = IO.socket(DEFUALT_SERVER_URL, opts);
+            Log.d(TAG, "set on listeners...");
+            socket.on(Socket.EVENT_CONNECT, new Emitter.Listener() {
+                @Override
+                public void call(Object... args) {
+                    Log.d(TAG, "connected");
+                }
+            }).on("pong", new Emitter.Listener() {
+                @Override
+                public void call(final Object... args) {
+                    try{
+                        final String dump = "event: pong, test_type: " + args[0] + ", data: " + args[1];
+                        Log.d(TAG, dump);
+                        runOnUiThread(new Runnable() {
+                            @Override
+                            public void run() {
+                                mTextLog.append(dump + "\n");
+                            }
+                        });
+                    } catch (Exception e){
+                        Log.e(TAG, e.getMessage(), e);
+                    }
+                }
+            });
+            Log.d(TAG, "try to connect...");
+            socket.open();
+        } catch (URISyntaxException e) {
+            e.printStackTrace();
+        }
+    }
+
+}
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-hdpi/ic_launcher.png b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 00000000..96a442e5
Binary files /dev/null and b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-hdpi/ic_launcher.png differ
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-mdpi/ic_launcher.png b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 00000000..359047df
Binary files /dev/null and b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-mdpi/ic_launcher.png differ
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-xhdpi/ic_launcher.png b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..71c6d760
Binary files /dev/null and b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-xhdpi/ic_launcher.png differ
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..4df18946
Binary files /dev/null and b/multibyte_test/android/multibyteChecker/app/src/main/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/layout/activity_my.xml b/multibyte_test/android/multibyteChecker/app/src/main/res/layout/activity_my.xml
new file mode 100644
index 00000000..a8b5a00a
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/res/layout/activity_my.xml
@@ -0,0 +1,53 @@
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    tools:context=".MyActivity">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        >
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            >
+            <Button
+                android:id="@+id/button_ping1"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="ping1"
+                />
+            <Button
+                android:id="@+id/button_ping2"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="ping2"
+                />
+            <Button
+                android:id="@+id/button_ping3"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="ping3"
+                />
+            <Button
+                android:id="@+id/button_ping4"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="ping4"
+                />
+        </LinearLayout>
+        <TextView
+            android:id="@+id/text_log"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+    </LinearLayout>
+
+</ScrollView>
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/menu/my.xml b/multibyte_test/android/multibyteChecker/app/src/main/res/menu/my.xml
new file mode 100644
index 00000000..bea58cc0
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/res/menu/my.xml
@@ -0,0 +1,8 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context=".MyActivity" >
+    <item android:id="@+id/action_settings"
+        android:title="@string/action_settings"
+        android:orderInCategory="100"
+        android:showAsAction="never" />
+</menu>
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/values-w820dp/dimens.xml b/multibyte_test/android/multibyteChecker/app/src/main/res/values-w820dp/dimens.xml
new file mode 100644
index 00000000..63fc8164
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/res/values-w820dp/dimens.xml
@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/values/dimens.xml b/multibyte_test/android/multibyteChecker/app/src/main/res/values/dimens.xml
new file mode 100644
index 00000000..47c82246
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/res/values/dimens.xml
@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/values/strings.xml b/multibyte_test/android/multibyteChecker/app/src/main/res/values/strings.xml
new file mode 100644
index 00000000..06b46f39
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/res/values/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">multibyteChecker</string>
+    <string name="hello_world">Hello world!</string>
+    <string name="action_settings">Settings</string>
+
+</resources>
diff --git a/multibyte_test/android/multibyteChecker/app/src/main/res/values/styles.xml b/multibyte_test/android/multibyteChecker/app/src/main/res/values/styles.xml
new file mode 100644
index 00000000..ff6c9d2c
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/app/src/main/res/values/styles.xml
@@ -0,0 +1,8 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+
+</resources>
diff --git a/multibyte_test/android/multibyteChecker/build.gradle b/multibyte_test/android/multibyteChecker/build.gradle
new file mode 100644
index 00000000..9b8abe4f
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/build.gradle
@@ -0,0 +1,19 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.12.2'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
diff --git a/multibyte_test/android/multibyteChecker/gradle.properties b/multibyte_test/android/multibyteChecker/gradle.properties
new file mode 100644
index 00000000..5d08ba75
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/gradle.properties
@@ -0,0 +1,18 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Settings specified in this file will override any Gradle settings
+# configured through the IDE.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
\ No newline at end of file
diff --git a/multibyte_test/android/multibyteChecker/gradle/wrapper/gradle-wrapper.properties b/multibyte_test/android/multibyteChecker/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..1e61d1fd
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip
diff --git a/multibyte_test/android/multibyteChecker/gradlew b/multibyte_test/android/multibyteChecker/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/multibyte_test/android/multibyteChecker/gradlew.bat b/multibyte_test/android/multibyteChecker/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/multibyte_test/android/multibyteChecker/settings.gradle b/multibyte_test/android/multibyteChecker/settings.gradle
new file mode 100644
index 00000000..e7b4def4
--- /dev/null
+++ b/multibyte_test/android/multibyteChecker/settings.gradle
@@ -0,0 +1 @@
+include ':app'
diff --git a/multibyte_test/codec_check_node_log.txt b/multibyte_test/codec_check_node_log.txt
new file mode 100644
index 00000000..a787ea3f
--- /dev/null
+++ b/multibyte_test/codec_check_node_log.txt
@@ -0,0 +1,111 @@
+$ node multibyte_codec_check_app.js 
+connected.
+connected.
+---------------------------------
+received ping, test_type: android plain ascii, data: abcABC123!"#
+e: SyntaxError: Unexpected token a
+dump ascii: abcABC123!"#
+dump ascii2: abcABC123!#
+dump multibyteCharactors: あいうえお
+dump multibyteCharactors2: あいうえお
+dump data: abcABC123!"#
+detect ascii: 
+{ encoding: 'ascii', confidence: 1 }
+detect ascii2: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors2: 
+{ encoding: 'ascii', confidence: 1 }
+detect data: 
+{ encoding: 'ascii', confidence: 1 }
+---------------------------------
+received ping, test_type: android json ascii, data: {"ascii":"abcABC123!"#"}
+e: SyntaxError: Unexpected token #
+dump ascii: abcABC123!"#
+dump ascii2: abcABC123!#
+dump multibyteCharactors: あいうえお
+dump multibyteCharactors2: あいうえお
+dump data: {"ascii":"abcABC123!"#"}
+detect ascii: 
+{ encoding: 'ascii', confidence: 1 }
+detect ascii2: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors2: 
+{ encoding: 'ascii', confidence: 1 }
+detect data: 
+{ encoding: 'ascii', confidence: 1 }
+---------------------------------
+received ping, test_type: android plain ascii2, data: abcABC123!#
+e: SyntaxError: Unexpected token a
+dump ascii: abcABC123!"#
+dump ascii2: abcABC123!#
+dump multibyteCharactors: あいうえお
+dump multibyteCharactors2: あいうえお
+dump data: abcABC123!#
+detect ascii: 
+{ encoding: 'ascii', confidence: 1 }
+detect ascii2: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors2: 
+{ encoding: 'ascii', confidence: 1 }
+detect data: 
+{ encoding: 'ascii', confidence: 1 }
+---------------------------------
+received ping, test_type: android json ascii2, data: {"ascii2":"abcABC123!#"}
+received ping, JSON.parse(data): [object Object]
+dump ascii: abcABC123!"#
+dump ascii2: abcABC123!#
+dump multibyteCharactors: あいうえお
+dump multibyteCharactors2: あいうえお
+dump data: {"ascii2":"abcABC123!#"}
+detect ascii: 
+{ encoding: 'ascii', confidence: 1 }
+detect ascii2: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors2: 
+{ encoding: 'ascii', confidence: 1 }
+detect data: 
+{ encoding: 'ascii', confidence: 1 }
+---------------------------------
+received ping, test_type: android plain mutibyte charactor, data: あいうえお
+e: SyntaxError: Unexpected token ã
+dump ascii: abcABC123!"#
+dump ascii2: abcABC123!#
+dump multibyteCharactors: あいうえお
+dump multibyteCharactors2: あいうえお
+dump data: あいうえお
+detect ascii: 
+{ encoding: 'ascii', confidence: 1 }
+detect ascii2: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors2: 
+{ encoding: 'ascii', confidence: 1 }
+detect data: 
+{ encoding: 'utf-8', confidence: 0.9690625 }
+---------------------------------
+received ping, test_type: android json multibyte charactor, data: {"multibyteCharactors":"あいうえお"}
+received ping, JSON.parse(data): [object Object]
+dump ascii: abcABC123!"#
+dump ascii2: abcABC123!#
+dump multibyteCharactors: あいうえお
+dump multibyteCharactors2: あいうえお
+dump data: {"multibyteCharactors":"あいうえお"}
+detect ascii: 
+{ encoding: 'ascii', confidence: 1 }
+detect ascii2: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors: 
+{ encoding: 'ascii', confidence: 1 }
+detect multibyteCharactors2: 
+{ encoding: 'ascii', confidence: 1 }
+detect data: 
+{ encoding: 'utf-8', confidence: 0.9690625 }
\ No newline at end of file
diff --git a/multibyte_test/node/multibyte_check_app.js b/multibyte_test/node/multibyte_check_app.js
new file mode 100644
index 00000000..6449b59e
--- /dev/null
+++ b/multibyte_test/node/multibyte_check_app.js
@@ -0,0 +1,48 @@
+var __base = __dirname + '/',
+    __global = '/usr/local/lib/node_modules/',
+    socketio = require(__global + 'socket.io'),
+    io = socketio.listen(8124),
+    ascii = 'abcABC123!"#',
+    ascii2 = 'abcABC123!#',
+    multibyteCharactors = 'あいうえお',
+    multibyteCharactors2 = "あいうえお";
+
+io.on('connection', function (socket) {
+    console.log('connected.');
+
+    socket.on('disconnect', function () {
+        console.log('disconnect' + socket.client.id);
+    });
+
+    socket.on('ping', function (test_type, data) {
+        console.log('---------------------------------');
+        console.log('received ping, test_type: ' + test_type + ', data: ' + data);
+        try{
+            console.log('received ping, JSON.parse(data): ' + JSON.parse(data));
+        } catch( e ){
+            console.log("e: " + e);
+        }
+
+        console.log('dump ascii: ' + ascii);
+        console.log('dump ascii2: ' + ascii2);
+        console.log('dump multibyteCharactors: ' + multibyteCharactors);
+        console.log('dump multibyteCharactors2: ' + multibyteCharactors2);
+        socket.emit('pong', "socket.io plain ascii", ascii);
+        socket.emit('pong', "socket.io object ascii", {ascii:ascii});
+        socket.emit('pong', "socket.io json ascii", JSON.stringify({ascii:ascii}));
+        socket.emit('pong', "socket.io plain ascii2", ascii2);
+        socket.emit('pong', "socket.io object ascii2", {ascii2:ascii2});
+        socket.emit('pong', "socket.io json ascii2", JSON.stringify({ascii2:ascii2}));
+        socket.emit('pong', "socket.io plain multibyteCharactors", multibyteCharactors);
+        socket.emit('pong', "socket.io object multibyteCharactors", {multibyteCharactors:multibyteCharactors});
+        socket.emit('pong', "socket.io json multibyteCharactors", JSON.stringify({multibyteCharactors:multibyteCharactors}));
+        socket.emit('pong', "socket.io plain multibyteCharactors2", multibyteCharactors2);
+        socket.emit('pong', "socket.io object multibyteCharactors2", {multibyteCharactors2:multibyteCharactors2});
+        socket.emit('pong', "socket.io json multibyteCharactors2", JSON.stringify({multibyteCharactors2:multibyteCharactors2 }));
+        socket.emit('pong', "return data plain", data);
+        socket.emit('pong', "return data object", {data:data});
+        socket.emit('pong', "return data json", JSON.stringify({data:data }));
+
+    });
+});
+
diff --git a/multibyte_test/node/multibyte_codec_check_app.js b/multibyte_test/node/multibyte_codec_check_app.js
new file mode 100644
index 00000000..fe7e7361
--- /dev/null
+++ b/multibyte_test/node/multibyte_codec_check_app.js
@@ -0,0 +1,63 @@
+var __base = __dirname + '/',
+    __global = '/usr/local/lib/node_modules/',
+    socketio = require(__global + 'socket.io'),
+    io = socketio.listen(8124),
+    jschardet = require(__global + 'jschardet'),
+    Iconv = require(__global + 'iconv').Iconv,
+    ascii = 'abcABC123!"#',
+    ascii2 = 'abcABC123!#',
+    multibyteCharactors = 'あいうえお',
+    multibyteCharactors2 = "あいうえお";
+
+io.on('connection', function (socket) {
+    console.log('connected.');
+
+    socket.on('disconnect', function () {
+        console.log('disconnect' + socket.client.id);
+    });
+
+    socket.on('ping', function (test_type, data) {
+        console.log('---------------------------------');
+        console.log('received ping, test_type: ' + test_type + ', data: ' + data);
+        try{
+            console.log('received ping, JSON.parse(data): ' + JSON.parse(data));
+        } catch( e ){
+            console.log("e: " + e);
+        }
+
+        console.log('dump ascii: ' + ascii);
+        console.log('dump ascii2: ' + ascii2);
+        console.log('dump multibyteCharactors: ' + multibyteCharactors);
+        console.log('dump multibyteCharactors2: ' + multibyteCharactors2);
+        console.log('dump data: ' + data);
+
+        console.log('detect ascii: ');
+        console.log(jschardet.detect(ascii));
+        console.log('detect ascii2: ');
+        console.log(jschardet.detect(ascii2));
+        console.log('detect multibyteCharactors: ');
+        console.log(jschardet.detect(multibyteCharactors));
+        console.log('detect multibyteCharactors2: ');
+        console.log(jschardet.detect(multibyteCharactors2));
+        console.log('detect data: ');
+        console.log(jschardet.detect(data));
+
+        socket.emit('pong', "socket.io plain ascii", ascii);
+        socket.emit('pong', "socket.io object ascii", {ascii:ascii});
+        socket.emit('pong', "socket.io json ascii", JSON.stringify({ascii:ascii}));
+        socket.emit('pong', "socket.io plain ascii2", ascii2);
+        socket.emit('pong', "socket.io object ascii2", {ascii2:ascii2});
+        socket.emit('pong', "socket.io json ascii2", JSON.stringify({ascii2:ascii2}));
+        socket.emit('pong', "socket.io plain multibyteCharactors", multibyteCharactors);
+        socket.emit('pong', "socket.io object multibyteCharactors", {multibyteCharactors:multibyteCharactors});
+        socket.emit('pong', "socket.io json multibyteCharactors", JSON.stringify({multibyteCharactors:multibyteCharactors}));
+        socket.emit('pong', "socket.io plain multibyteCharactors2", multibyteCharactors2);
+        socket.emit('pong', "socket.io object multibyteCharactors2", {multibyteCharactors2:multibyteCharactors2});
+        socket.emit('pong', "socket.io json multibyteCharactors2", JSON.stringify({multibyteCharactors2:multibyteCharactors2 }));
+        socket.emit('pong', "return data plain", data);
+        socket.emit('pong', "return data object", {data:data});
+        socket.emit('pong', "return data json", JSON.stringify({data:data }));
+
+    });
+});
+