diff --git a/app/src/main/java/org/ntlab/irisclient/TestDrawingActivity.java b/app/src/main/java/org/ntlab/irisclient/TestDrawingActivity.java
index d5ce1d4..8cc4463 100644
--- a/app/src/main/java/org/ntlab/irisclient/TestDrawingActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/TestDrawingActivity.java
@@ -8,12 +8,29 @@
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
 
+import org.ntlab.irisclient.resources.GameRest;
+import org.ntlab.irisclient.resources.RoomsRest;
+
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+import retrofit2.converter.jackson.JacksonConverterFactory;
+
 public class TestDrawingActivity extends AppCompatActivity {
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.test_activity_draw);
 
+        //サーバーとの通信を初期化
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/iris/")
+                .addConverterFactory(JacksonConverterFactory.create())
+                .build();
+        final RoomsRest roomRest = retrofit.create(RoomsRest.class);
+
         //上の表示を削除
         ActionBar actionBar = getSupportActionBar();
         if (actionBar != null) {
@@ -24,6 +41,24 @@
         Button ownerButton = findViewById(R.id.ownerdraw);
         ownerButton.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
+                //（ownerのみ）drawtestを更新 : は動かない
+                /*
+                final RoomsRest roomsRest = retrofit.create(RoomsRest.class);
+                Call<Void> call = roomsRest.putTestRoom();
+                call.enqueue(new Callback<Void>() {
+                    @Override
+                    public void onResponse(Call<Void> call, Response<Void> response) {
+                        if (response.isSuccessful()){
+                            System.out.println("通信成功:createDrawTest");
+                        }
+                    }
+                    @Override
+                    public void onFailure(Call<Void> call, Throwable t) {
+                        System.out.println("通信失敗:createDrawTest");
+                        System.out.println(t);
+                    }
+                });
+                 */
                 ((Iris) getApplication()).setRid("drawtest");
                 ((Iris) getApplication()).setNickname("owner");
                 Intent intent = new Intent(TestDrawingActivity.this,DrawingActivity.class);