diff --git a/test/system/users_test.rb b/test/system/users_test.rb
--- a/test/system/users_test.rb
+++ b/test/system/users_test.rb
@@ -41,6 +41,58 @@
     assert_text 'section 2'
   end
 
+  test "add multiple users" do
+    login 'admin', 'admin'
+    within 'header' do
+      click_on 'Manage'
+      click_on 'Users', match: :first
+    end
+
+    click_on 'New list of users', match: :first
+    find(:css, 'textarea').fill_in with:"abc1,Boaty McBoatface,abcdef,alias1,remark1,\nabc2,Boaty2 McSecond,acbdef123,aias2,remark2"
+    click_on 'create users'
+
+    assert_text('remark1')
+    assert_text('remark2')
+  end
+
+  test "grant admin right" do
+    login 'admin', 'admin'
+    within 'header' do
+      click_on 'Manage'
+      click_on 'Users', match: :first
+    end
+
+    click_on "View administrator"
+    fill_in 'login', with: 'john'
+    click_on "Grant"
+
+    visit logout_main_path
+    login 'john','hello'
+    within 'header' do
+      click_on 'Manage'
+      click_on 'Problem', match: :first
+    end
+    assert_text "Turn off all problems"
+  end
+
+  test "try using admin from normal user" do
+    login 'admin','admin'
+    visit  bulk_manage_user_admin_index_path
+    assert_current_path bulk_manage_user_admin_index_path
+    visit logout_main_path
+
+    login 'jack','morning'
+    visit  bulk_manage_user_admin_index_path
+    assert_current_path root_path
+    assert_text 'You are not authorized'
+
+    login 'james','morning'
+    visit  new_list_user_admin_index_path
+    assert_current_path root_path
+    assert_text 'You are not authorized'
+  end
+
   def login(username,password)
     visit root_path
     fill_in "Login", with: username