Fix 500 Error: Create Account with Suspended User Email Using "+" sign

app/views/sign_up/emails/show.html.erb

@@ -35,7 +35,7 @@
   </p>
   <p><%= t('devise.registrations.close_window') %></p>
 
-  <% if FeatureManagement.enable_load_testing_mode? %>
+  <% if FeatureManagement.enable_load_testing_mode? && EmailAddress.find_with_email(email) %>
     <%= link_to(
           'CONFIRM NOW',
           sign_up_create_email_confirmation_url(confirmation_token: EmailAddress.find_with_email(email).confirmation_token),

app/views/users/emails/verify.html.erb

@@ -25,7 +25,7 @@
 <p><%= t('notices.use_diff_email.text_html', link_html: link_to(t('notices.use_diff_email.link'), add_email_path)) %></p>
 <p><%= t('devise.registrations.close_window') %></p>
 
-<% if FeatureManagement.enable_load_testing_mode? %>
+<% if FeatureManagement.enable_load_testing_mode? && EmailAddress.find_with_email(email) %>
   <%= link_to(
         'CONFIRM NOW',
         sign_up_create_email_confirmation_url(confirmation_token: EmailAddress.find_with_email(email).confirmation_token),

spec/views/sign_up/emails/show.html.erb_spec.rb

@@ -1,8 +1,9 @@
 require 'rails_helper'
 
 RSpec.describe 'sign_up/emails/show.html.erb' do
+  let(:email) { 'foo@bar.com' }
   before do
-    allow(view).to receive(:email).and_return('foo@bar.com')
+    allow(view).to receive(:email).and_return(email)
     @resend_email_confirmation_form = ResendEmailConfirmationForm.new
   end
 
@@ -23,4 +24,45 @@
 
     expect(rendered).to have_button(t('links.resend'))
   end
+
+  context 'when enable_load_testing_mode? is true and email address found' do
+    before do
+      allow(FeatureManagement).to receive(:enable_load_testing_mode?).and_return(true)
+      create(:email_address, confirmation_token: 'some_token', email: email)
+
+      render
+    end
+
+    it 'generates the correct link' do
+      expect(rendered).to have_link(
+        'CONFIRM NOW',
+        href: sign_up_create_email_confirmation_url(confirmation_token: 'some_token'),
+        id: 'confirm-now',
+      )
+    end
+  end
+
+  context 'when enable_load_testing_mode? is false' do
+    before do
+      allow(FeatureManagement).to receive(:enable_load_testing_mode?).and_return(false)
+
+      render
+    end
+
+    it 'does not generate the link' do
+      expect(rendered).not_to have_link('CONFIRM NOW', href: sign_up_create_email_confirmation_url)
+    end
+  end
+
+  context 'when email address not found' do
+    before do
+      allow(FeatureManagement).to receive(:enable_load_testing_mode?).and_return(true)
+
+      render
+    end
+
+    it 'does not generate the link' do
+      expect(rendered).not_to have_link('CONFIRM NOW', href: sign_up_create_email_confirmation_url)
+    end
+  end
 end

spec/views/users/emails/verify.html.erb_spec.rb

@@ -0,0 +1,68 @@
+require 'rails_helper'
+
+RSpec.describe 'users/emails/verify.html.erb' do
+  let(:email) { 'foo@bar.com' }
+  before do
+    allow(view).to receive(:email).and_return(email)
+    @resend_email_confirmation_form = ResendEmailConfirmationForm.new
+  end
+
+  it 'has a localized title' do
+    expect(view).to receive(:title).with(t('titles.verify_email'))
+
+    render
+  end
+
+  it 'has a localized header' do
+    render
+
+    expect(rendered).to have_selector('h1', text: t('headings.verify_email'))
+  end
+
+  it 'contains link to resend confirmation page' do
+    render
+
+    expect(rendered).to have_button(t('links.resend'))
+  end
+
+  context 'when enable_load_testing_mode? is true and email address found' do
+    before do
+      allow(FeatureManagement).to receive(:enable_load_testing_mode?).and_return(true)
+      create(:email_address, confirmation_token: 'some_token', email: email)
+
+      render
+    end
+
+    it 'generates the correct link' do
+      expect(rendered).to have_link(
+        'CONFIRM NOW',
+        href: sign_up_create_email_confirmation_url(confirmation_token: 'some_token'),
+        id: 'confirm-now',
+      )
+    end
+  end
+
+  context 'when enable_load_testing_mode? is false' do
+    before do
+      allow(FeatureManagement).to receive(:enable_load_testing_mode?).and_return(false)
+
+      render
+    end
+
+    it 'does not generate the link' do
+      expect(rendered).not_to have_link('CONFIRM NOW', href: sign_up_create_email_confirmation_url)
+    end
+  end
+
+  context 'when email address not found' do
+    before do
+      allow(FeatureManagement).to receive(:enable_load_testing_mode?).and_return(true)
+
+      render
+    end
+
+    it 'does not generate the link' do
+      expect(rendered).not_to have_link('CONFIRM NOW', href: sign_up_create_email_confirmation_url)
+    end
+  end
+end