Account deletion (#3728)

* Add form for account deletion

* If avatar or header are gone from source, remove them

* Add option to have SuspendAccountService remove user record, add tests

* Exclude suspended accounts from search

spec/controllers/settings/deletes_controller_spec.rb

@@ -0,0 +1,72 @@
+require 'rails_helper'
+
+describe Settings::DeletesController do
+  render_views
+
+  describe 'GET #show' do
+    context 'when signed in' do
+      let(:user) { Fabricate(:user) }
+
+      before do
+        sign_in user, scope: :user
+      end
+
+      it 'renders confirmation page' do
+        get :show
+        expect(response).to have_http_status(:success)
+      end
+    end
+
+    context 'when not signed in' do
+      it 'redirects' do
+        get :show
+        expect(response).to redirect_to '/auth/sign_in'
+      end
+    end
+  end
+
+  describe 'DELETE #destroy' do
+    context 'when signed in' do
+      let(:user) { Fabricate(:user, password: 'petsmoldoggos') }
+
+      before do
+        sign_in user, scope: :user
+      end
+
+      context 'with correct password' do
+        before do
+          delete :destroy, params: { password: 'petsmoldoggos' }
+        end
+
+        it 'redirects to sign in page' do
+          expect(response).to redirect_to '/auth/sign_in'
+        end
+
+        it 'removes user record' do
+          expect(User.find_by(id: user.id)).to be_nil
+        end
+
+        it 'marks account as suspended' do
+          expect(user.account.reload).to be_suspended
+        end
+      end
+
+      context 'with incorrect password' do
+        before do
+          delete :destroy, params: { password: 'blaze420' }
+        end
+
+        it 'redirects back to confirmation page' do
+          expect(response).to redirect_to settings_delete_path
+        end
+      end
+    end
+
+    context 'when not signed in' do
+      it 'redirects' do
+        delete :destroy
+        expect(response).to redirect_to '/auth/sign_in'
+      end
+    end
+  end
+end