diff --git a/src/main/Main.java b/src/main/Main.java
index 8173834..1808ae6 100644
--- a/src/main/Main.java
+++ b/src/main/Main.java
@@ -14,6 +14,7 @@
 	static NecessaryParam nes = new NecessaryParam();
 	static TestGETCactus get = new TestGETCactus();
 	static TestCreatePOSTCactus post = new TestCreatePOSTCactus("f", "f", "f");
+	static TestLogoutPOSTCactus logout = new TestLogoutPOSTCactus("");
 	static TestPUTCactus put = new TestPUTCactus("f", "f");
 	static TestDELETECactus delete = new TestDELETECactus("qF9bgKYZmw8P");
 
diff --git a/src/testcase/TestCactus.java b/src/testcase/TestCactus.java
new file mode 100644
index 0000000..c4a1b46
--- /dev/null
+++ b/src/testcase/TestCactus.java
@@ -0,0 +1,21 @@
+package testcase;
+
+import java.util.ArrayList;
+
+import restfulchecker.RestChecker;
+import restfulchecker.RestParam;
+
+public class TestCactus {
+	protected RestChecker check = new RestChecker();
+	protected ArrayList<RestParam> query = new ArrayList<>();
+	protected ArrayList<RestParam> form = new ArrayList<>();
+	protected ArrayList<String> path = new ArrayList<>();
+
+	protected TestCactus() {
+		check.setAccount("http://nitta-lab-www.is.konan-u.ac.jp/CactusServer/rest/accounts");
+	}
+
+	public void start() {
+		check.doRestTest();
+	}
+}
diff --git a/src/testcase/TestCreatePOSTCactus.java b/src/testcase/TestCreatePOSTCactus.java
index ae129b7..d3021cd 100644
--- a/src/testcase/TestCreatePOSTCactus.java
+++ b/src/testcase/TestCreatePOSTCactus.java
@@ -1,25 +1,16 @@
 package testcase;
 
-import java.util.ArrayList;
-
 import restfulchecker.*;
 import restfulchecker.RestChecker.Method;
 
-public class TestCreatePOSTCactus {
-	private RestChecker check = new RestChecker();
-	private ArrayList<RestParam> query = new ArrayList<>();
-	private ArrayList<RestParam> form = new ArrayList<>();
-	private ArrayList<String> path = new ArrayList<>();
+public class TestCreatePOSTCactus extends TestCactus {
 
 	public TestCreatePOSTCactus(String userID, String userName, String userPass) {
-		check.setAccount("http://nitta-lab-www.is.konan-u.ac.jp/CactusServer/rest/accounts");
+		super();
 		form.add(new RestParam("userID", userID));
 		form.add(new RestParam("userName", userName));
 		form.add(new RestParam("userPass", userPass));
 		check.setupRestTest(Method.POST, query, form, path);
 	}
 
-	public void start() {
-		check.doRestTest();
-	}
 }
diff --git a/src/testcase/TestDELETECactus.java b/src/testcase/TestDELETECactus.java
index c985909..2803702 100644
--- a/src/testcase/TestDELETECactus.java
+++ b/src/testcase/TestDELETECactus.java
@@ -1,23 +1,13 @@
 package testcase;
 
-import java.util.ArrayList;
-
-import restfulchecker.*;
 import restfulchecker.RestChecker.Method;
 
-public class TestDELETECactus {
-	private RestChecker check = new RestChecker();
-	private ArrayList<RestParam> query = new ArrayList<>();
-	private ArrayList<RestParam> form = new ArrayList<>();
-	private ArrayList<String> path = new ArrayList<>();
+public class TestDELETECactus extends TestCactus {
 
 	public TestDELETECactus(String uniqueID) {
-		check.setAccount("http://nitta-lab-www.is.konan-u.ac.jp/CactusServer/rest/accounts");
+		super();
 		path.add(uniqueID);
 		check.setupRestTest(Method.DELETE, query, form, path);
 	}
 
-	public void start() {
-		check.doRestTest();
-	}
 }
diff --git a/src/testcase/TestGETCactus.java b/src/testcase/TestGETCactus.java
index 7627dd6..1ac5aee 100644
--- a/src/testcase/TestGETCactus.java
+++ b/src/testcase/TestGETCactus.java
@@ -1,19 +1,12 @@
 package testcase;
 
-import java.util.ArrayList;
-
-import restfulchecker.*;
 import restfulchecker.RestChecker.Method;
 
-public class TestGETCactus {
-	private RestChecker check = new RestChecker();
-	private ArrayList<RestParam> query = new ArrayList<>();
-	private ArrayList<RestParam> form = new ArrayList<>();
-	private ArrayList<String> path = new ArrayList<>();
+public class TestGETCactus extends TestCactus {
 
-	public void start() {
-		check.setAccount("http://nitta-lab-www.is.konan-u.ac.jp/CactusServer/rest/accounts");
+	public TestGETCactus() {
+		super();
 		check.setupRestTest(Method.GET, query, form, path);
-		check.doRestTest();
 	}
+
 }
diff --git a/src/testcase/TestLogoutPOSTCactus.java b/src/testcase/TestLogoutPOSTCactus.java
index 53e3621..873b805 100644
--- a/src/testcase/TestLogoutPOSTCactus.java
+++ b/src/testcase/TestLogoutPOSTCactus.java
@@ -1,24 +1,14 @@
 package testcase;
 
-import java.util.ArrayList;
-
 import restfulchecker.*;
 import restfulchecker.RestChecker.Method;
 
-public class TestLogoutPOSTCactus {
-	private RestChecker check = new RestChecker();
-	private ArrayList<RestParam> query = new ArrayList<>();
-	private ArrayList<RestParam> form = new ArrayList<>();
-	private ArrayList<String> path = new ArrayList<>();
+public class TestLogoutPOSTCactus extends TestCactus {
 
 	public TestLogoutPOSTCactus(String token) {
-		check.setAccount("http://nitta-lab-www.is.konan-u.ac.jp/CactusServer/rest/accounts");
+		super();
 		form.add(new RestParam("token", token));
 		path.add("logout");
 		check.setupRestTest(Method.POST, query, form, path);
 	}
-
-	public void start() {
-		check.doRestTest();
-	}
 }
\ No newline at end of file
diff --git a/src/testcase/TestPUTCactus.java b/src/testcase/TestPUTCactus.java
index 90d1556..bb6ad23 100644
--- a/src/testcase/TestPUTCactus.java
+++ b/src/testcase/TestPUTCactus.java
@@ -1,26 +1,15 @@
 package testcase;
 
-import java.util.ArrayList;
-
 import restfulchecker.*;
 import restfulchecker.RestChecker.Method;
 
-public class TestPUTCactus {
-	private RestChecker check = new RestChecker();
-	private ArrayList<RestParam> query = new ArrayList<>();
-	private ArrayList<RestParam> form = new ArrayList<>();
-	private ArrayList<String> path = new ArrayList<>();
+public class TestPUTCactus extends TestCactus {
 
 	public TestPUTCactus(String userID, String userPass) {
-		check.setAccount("http://nitta-lab-www.is.konan-u.ac.jp/CactusServer/rest/accounts");
+		super();
 		form.add(new RestParam("userID", userID));
 		form.add(new RestParam("userPass", userPass));
 		check.setupRestTest(Method.PUT, query, form, path);
 		check.setRemoveParam("token");
 	}
-
-	public void start() {
-		check.doRestTest();
-		System.out.println(check.getResults());
-	}
 }