Improve specs by defining anonymous instead of named classes

Signed-off-by: Rémy Coutable <remy@rymai.me>

spec/models/concerns/safe_url_spec.rb

@@ -4,7 +4,8 @@ require 'spec_helper'
 
 describe SafeUrl do
   describe '#safe_url' do
-    class SafeUrlTestClass
+    let(:safe_url_test_class) do
+      Class.new do
         include SafeUrl
 
         attr_reader :url
@@ -13,8 +14,9 @@ describe SafeUrl do
           @url = url
         end
       end
+    end
 
-    let(:test_class) { SafeUrlTestClass.new(url) }
+    let(:test_class) { safe_url_test_class.new(url) }
     let(:url) { 'http://example.com' }
 
     subject { test_class.safe_url }

spec/validators/qualified_domain_array_validator_spec.rb

@@ -3,7 +3,8 @@
 require 'spec_helper'
 
 describe QualifiedDomainArrayValidator do
-  class QualifiedDomainArrayValidatorTestClass
+  let(:qualified_domain_array_validator_test_class) do
+    Class.new do
       include ActiveModel::Validations
 
       attr_accessor :domain_array
@@ -12,9 +13,9 @@ describe QualifiedDomainArrayValidator do
         self.domain_array = domain_array
       end
     end
-
+  end
   let!(:record) do
-    QualifiedDomainArrayValidatorTestClass.new(['gitlab.com'])
+    qualified_domain_array_validator_test_class.new(['gitlab.com'])
   end
 
   subject { validator.validate(record) }