diff --git a/plugins/bc-installer/src/Service/Admin/InstallationsAdminService.php b/plugins/bc-installer/src/Service/Admin/InstallationsAdminService.php
index f99fd77b71..5745e49e2e 100644
--- a/plugins/bc-installer/src/Service/Admin/InstallationsAdminService.php
+++ b/plugins/bc-installer/src/Service/Admin/InstallationsAdminService.php
@@ -317,6 +317,7 @@ public function connectDb(ServerRequest $request): \Cake\Datasource\ConnectionIn
      * @return void
      * @checked
      * @noTodo
+     * @unitTest
      */
     public function login(ServerRequest $request, Response $response): void
     {
diff --git a/plugins/bc-installer/tests/TestCase/Service/Admin/InstallationsAdminServiceTest.php b/plugins/bc-installer/tests/TestCase/Service/Admin/InstallationsAdminServiceTest.php
index 0b771023c0..bae0b3be87 100644
--- a/plugins/bc-installer/tests/TestCase/Service/Admin/InstallationsAdminServiceTest.php
+++ b/plugins/bc-installer/tests/TestCase/Service/Admin/InstallationsAdminServiceTest.php
@@ -22,6 +22,7 @@
 use BcInstaller\Service\Admin\InstallationsAdminService;
 use BcInstaller\Service\Admin\InstallationsAdminServiceInterface;
 use Cake\Core\Configure;
+use Cake\Http\Response;
 use Cake\Http\ServerRequest;
 use Cake\Http\Session;
 use Cake\ORM\Exception\PersistenceFailedException;
@@ -538,7 +539,15 @@ public function test_connectDb()
      */
     public function test_login()
     {
-        $this->markTestIncomplete('このテストは、まだ実装されていません。');
+        //準備
+        $this->loadFixtureScenario(InitAppScenario::class);
+        $request = $this->getRequest('/baser/admin/baser-core/users/index');
+        $request->getSession()->write('Installation.id', 1);
+        $response = new Response();
+        //テストを実行
+        $this->Installations->login($request, $response);
+        //ログインできるか確認
+        $this->assertEquals(1, $request->getSession()->read('AuthAdmin')->id);
     }
 
     /**