diff --git a/test/integration/login_test.rb b/test/integration/login_test.rb
new file mode 100644
--- /dev/null
+++ b/test/integration/login_test.rb
@@ -0,0 +1,40 @@
+require 'test_helper'
+
+class LoginTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+
+  test "login with invalid information" do
+    get root_path
+    assert_response :success
+    post login_login_path, login: "root", password: "hahaha"
+    assert_redirected_to root_path
+  end
+
+  test "normal user login" do
+    get root_path
+    assert_response :success
+    post login_login_path, {login: "john", password: "hello" }
+    assert_redirected_to main_list_path
+  end
+
+  test "normal user login in single_user mode" do
+    GraderConfiguration.find_by(key: GraderConfiguration::SINGLE_USER_KEY).update_attributes(value: 'true')
+    GraderConfiguration.reload
+    get root_path
+    assert_response :success
+    post login_login_path, {login: "john", password: "hello" }
+    follow_redirect!
+    assert_redirected_to root_path
+  end
+
+  test "root login in in single_user mode" do
+    GraderConfiguration.find_by(key: GraderConfiguration::SINGLE_USER_KEY).update_attributes(value: 'true')
+    GraderConfiguration.reload
+    get root_path
+    assert_response :success
+    post login_login_path, {login: "admin", password: "admin" }
+    assert_redirected_to main_list_path
+  end
+end