Add option to admin area to sign in as a specific user

Closes #2291

2 files changed, 31 insertions, 0 deletions

diff --git a/spec/controllers/admin/users_controller_spec.rb b/spec/controllers/admin/users_controller_spec.rb
index c40b2c2a583..e4c32cd2a14 100644
--- a/spec/controllers/admin/users_controller_spec.rb
+++ b/spec/controllers/admin/users_controller_spec.rb
@@ -7,6 +7,21 @@ describe Admin::UsersController do
     sign_in(admin)
   end
 
+  describe 'PUT login_as' do
+    let(:user) { create(:user) }
+
+    it 'logs admin as another user' do
+      expect(warden.authenticate(scope: :user)).not_to eq(user)
+      put :login_as, id: user.username
+      expect(warden.authenticate(scope: :user)).to eq(user)
+    end
+
+    it 'redirects user to homepage' do
+      put :login_as, id: user.username
+      expect(response).to redirect_to(root_path)
+    end
+  end
+
   describe 'DELETE #user with projects' do
     let(:user) { create(:user) }
     let(:project) { create(:project, namespace: user.namespace) }
diff --git a/spec/features/admin/admin_users_spec.rb b/spec/features/admin/admin_users_spec.rb
index 86717761582..870a82d0ee0 100644
--- a/spec/features/admin/admin_users_spec.rb
+++ b/spec/features/admin/admin_users_spec.rb
@@ -166,4 +166,20 @@ describe "Admin::Users", feature: true  do
       end
     end
   end
+
+  it 'should be able to log in as another user' do
+    another_user = create(:user)
+
+    visit admin_users_path
+
+    page.within ".user-#{another_user.id}" do
+      click_link 'Log in'
+    end
+
+    expect(page).to have_content("Logged in as #{another_user.username}")
+
+    page.within '.sidebar-user .username' do
+      expect(page).to have_content(another_user.username)
+    end
+  end
 end