diff --git a/tests/class/SC_SessionTest.php b/tests/class/SC_SessionTest.php
new file mode 100644
index 0000000000..897e043c9f
--- /dev/null
+++ b/tests/class/SC_SessionTest.php
@@ -0,0 +1,107 @@
+<?php
+
+class SC_SessionTest extends Common_TestCase
+{
+    /**
+     * @var SC_Session
+     */
+    protected $objSession;
+
+    protected function setUp()
+    {
+        parent::setUp();
+        $_SESSION['cert'] = CERT_STRING;
+        $_SESSION['login_id'] = 'admin';
+        $_SESSION['authority'] = 0;
+        $_SESSION['member_id'] = 1;
+        $_SESSION['uniq_id'] = 'uniqid'; // XXX コンストラクタで使用している未使用変数
+        $this->objSession = new SC_Session_Ex();
+    }
+
+    public function testGetInstance()
+    {
+        $this->assertInstanceOf('SC_Session', $this->objSession);
+        $this->assertNotNull($this->objSession->uniqid, 'コンストラクタで使用している未使用変数');
+    }
+
+    public function testIsSuccess()
+    {
+        $_SERVER['SCRIPT_FILENAME'] = __DIR__.'/../../html/admin/system/index.php';
+        $this->expected = SUCCESS;
+        $this->actual = $this->objSession->IsSuccess();
+        $this->verify();
+    }
+
+    public function testIsSuccessWithAccessError()
+    {
+        $_SESSION['cert'] = 'bad';
+        $this->objSession = new SC_Session_Ex();
+        $this->expected = ACCESS_ERROR;
+        $this->actual = $this->objSession->IsSuccess();
+        $this->verify();
+    }
+
+    public function testIsSuccessWithPermissionError()
+    {
+        $_SERVER['SCRIPT_FILENAME'] = __DIR__.'/../../html/admin/system/index.php';
+        $_SESSION['authority'] = 1;
+        $this->objSession = new SC_Session_Ex();
+        $this->expected = ACCESS_ERROR;
+        $this->actual = $this->objSession->IsSuccess();
+        $this->verify();
+    }
+
+    public function testSetSession()
+    {
+        $this->objSession->SetSession('test', 'value');
+        $this->assertEquals($_SESSION['test'], $this->objSession->GetSession('test'));
+    }
+
+    public function testGetSID()
+    {
+        $this->expected = session_id();
+        $this->actual = $this->objSession->GetSID();
+        $this->assertNotNull($this->actual);
+        $this->verify();
+    }
+
+    public function testGetUniqId()
+    {
+        $_SESSION['uniqid'] = 'uniqid';
+        $this->expected = 'uniqid';
+        $this->actual = $this->objSession->getUniqId();
+        $this->verify();
+    }
+
+    public function testGetUniqIdWithGenerate()
+    {
+        $this->actual = $this->objSession->getUniqId();
+        $this->expected = $_SESSION['uniqid'];
+        $this->verify();
+    }
+
+    public function testLogout()
+    {
+        $this->objSession->logout();
+        $this->assertNull($_SESSION[TRANSACTION_ID_NAME]);
+        $this->assertNull($_SESSION['cert']);
+        $this->assertNull($_SESSION['login_id']);
+        $this->assertNull($_SESSION['authority']);
+        $this->assertNull($_SESSION['member_id']);
+        $this->assertNull($_SESSION['uniqid']);
+    }
+
+    public function testRegenerateSID()
+    {
+        $this->expected = session_id();
+        $result = $this->objSession->regenerateSID();
+        $this->actual = session_id();
+
+        if ($result === false) {
+            $this->markTestSkipped('Can not regenerateSID');
+            $this->assertEquals($this->expected, $this->actual);
+        } else {
+            $this->assertNotEquals($this->expected, $this->actual);
+        }
+    }
+}