diff --git a/spec/controllers/login_controller_spec.rb b/spec/controllers/login_controller_spec.rb
new file mode 100644
index 00000000..0e795893
--- /dev/null
+++ b/spec/controllers/login_controller_spec.rb
@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe LoginController, type: :controller do
+  let(:invite) { create :invite }
+
+  describe 'GET accept_invitation' do
+    let(:expired_invite) { create :expired_invite }
+
+    describe 'with valid token' do
+      it 'accepts invitation' do
+        get :accept_invitation, params: { foodcoop: FoodsoftConfig[:default_scope], token: invite.token }
+        expect(response).to have_http_status(:success)
+        expect(response).to render_template('login/accept_invitation')
+      end
+    end
+
+    describe 'with invalid token' do
+      it 'redirects to login' do
+        get :accept_invitation, params: { foodcoop: FoodsoftConfig[:default_scope], token: invite.token + 'XX' }
+        expect(response).to have_http_status(:redirect)
+        expect(response).to redirect_to(login_url)
+        expect(flash[:alert]).to match(I18n.t('login.controller.error_invite_invalid'))
+      end
+    end
+
+    describe 'with timed out token' do
+      it 'redirects to login' do
+        get :accept_invitation, params: { foodcoop: FoodsoftConfig[:default_scope], token: expired_invite.token }
+        expect(response).to have_http_status(:redirect)
+        expect(response).to redirect_to(login_url)
+        expect(flash[:alert]).to match(I18n.t('login.controller.error_invite_invalid'))
+      end
+    end
+
+    describe 'without group' do
+      it 'redirects to login' do
+        invite.group.destroy
+        get :accept_invitation, params: { foodcoop: FoodsoftConfig[:default_scope], token: invite.token }
+        expect(response).to have_http_status(:redirect)
+        expect(response).to redirect_to(login_url)
+        expect(flash[:alert]).to match(I18n.t('login.controller.error_group_invalid'))
+      end
+    end
+  end
+
+  describe 'POST accept_invitation' do
+    describe 'with invalid parameters' do
+      it 'renders accept_invitation view' do
+        post :accept_invitation, params: { foodcoop: FoodsoftConfig[:default_scope], token: invite.token, user: invite.user.slice('first_name') }
+        expect(response).to have_http_status(:success)
+        expect(response).to render_template('login/accept_invitation')
+        expect(assigns(:user).errors.present?).to be true
+      end
+    end
+
+    describe 'with valid parameters' do
+      it 'redirects to login' do
+        post :accept_invitation, params: { foodcoop: FoodsoftConfig[:default_scope], token: invite.token, user: invite.user.slice('first_name', 'password') }
+        expect(response).to have_http_status(:redirect)
+        expect(response).to redirect_to(login_url)
+        expect(flash[:notice]).to match(I18n.t('login.controller.accept_invitation.notice'))
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/spec/factories/invite.rb b/spec/factories/invite.rb
new file mode 100644
index 00000000..51d48840
--- /dev/null
+++ b/spec/factories/invite.rb
@@ -0,0 +1,15 @@
+require 'factory_bot'
+
+FactoryBot.define do
+  factory :invite do
+    user { create :user }
+    group { create :group }
+    email { Faker::Internet.email }
+
+    factory :expired_invite do
+      after :create do |invite|
+        invite.update_column(:expires_at, Time.now.yesterday)
+      end
+    end
+  end
+end