Reference constants from account validation specs (#30634)

spec/models/account_spec.rb

@@ -768,20 +768,20 @@ RSpec.describe Account do
         expect(account).to model_have_error_on_field(:username)
       end
 
-      it 'is invalid if the username is longer than 30 characters' do
-        account = Fabricate.build(:account, username: Faker::Lorem.characters(number: 31))
+      it 'is invalid if the username is longer than the character limit' do
+        account = Fabricate.build(:account, username: username_over_limit)
         account.valid?
         expect(account).to model_have_error_on_field(:username)
       end
 
-      it 'is invalid if the display name is longer than 30 characters' do
-        account = Fabricate.build(:account, display_name: Faker::Lorem.characters(number: 31))
+      it 'is invalid if the display name is longer than the character limit' do
+        account = Fabricate.build(:account, display_name: username_over_limit)
         account.valid?
         expect(account).to model_have_error_on_field(:display_name)
       end
 
-      it 'is invalid if the note is longer than 500 characters' do
-        account = Fabricate.build(:account, note: Faker::Lorem.characters(number: 501))
+      it 'is invalid if the note is longer than the character limit' do
+        account = Fabricate.build(:account, note: account_note_over_limit)
         account.valid?
         expect(account).to model_have_error_on_field(:note)
       end
@@ -814,24 +814,32 @@ RSpec.describe Account do
         expect(account).to model_have_error_on_field(:username)
       end
 
-      it 'is valid even if the username is longer than 30 characters' do
-        account = Fabricate.build(:account, domain: 'domain', username: Faker::Lorem.characters(number: 31))
+      it 'is valid even if the username is longer than the character limit' do
+        account = Fabricate.build(:account, domain: 'domain', username: username_over_limit)
         account.valid?
         expect(account).to_not model_have_error_on_field(:username)
       end
 
-      it 'is valid even if the display name is longer than 30 characters' do
-        account = Fabricate.build(:account, domain: 'domain', display_name: Faker::Lorem.characters(number: 31))
+      it 'is valid even if the display name is longer than the character limit' do
+        account = Fabricate.build(:account, domain: 'domain', display_name: username_over_limit)
         account.valid?
         expect(account).to_not model_have_error_on_field(:display_name)
       end
 
-      it 'is valid even if the note is longer than 500 characters' do
-        account = Fabricate.build(:account, domain: 'domain', note: Faker::Lorem.characters(number: 501))
+      it 'is valid even if the note is longer than the character limit' do
+        account = Fabricate.build(:account, domain: 'domain', note: account_note_over_limit)
         account.valid?
         expect(account).to_not model_have_error_on_field(:note)
       end
     end
+
+    def username_over_limit
+      'a' * described_class::USERNAME_LENGTH_LIMIT * 2
+    end
+
+    def account_note_over_limit
+      'a' * described_class::NOTE_LENGTH_LIMIT * 2
+    end
   end
 
   describe 'scopes' do