Add RedirectRoute factory

spec/factories/redirect_routes.rb

+FactoryBot.define do
+  factory :redirect_route do
+    sequence(:path) { |n| "redirect#{n}" }
+    source factory: :group
+    permanent false
+
+    trait :permanent do
+      permanent true
+    end
+
+    trait :temporary do
+      permanent false
+    end
+  end
+end

spec/models/route_spec.rb

@@ -23,7 +23,7 @@ describe Route do
 
         context 'when permanent conflicting redirects exist' do
           it 'is invalid' do
-            redirect = RedirectRoute.new(path: 'foo/bar/baz', source: create(:group), permanent: true)
+            redirect = build(:redirect_route, :permanent, path: 'foo/bar/baz')
             redirect.save!(validate: false)
 
             expect(new_route.valid?).to be_falsey
@@ -45,7 +45,7 @@ describe Route do
 
         context 'when permanent conflicting redirects exist' do
           it 'is invalid' do
-            redirect = RedirectRoute.new(path: 'foo/bar/baz', source: create(:group), permanent: true)
+            redirect = build(:redirect_route, :permanent, path: 'foo/bar/baz')
             redirect.save!(validate: false)
 
             expect(route.valid?).to be_falsey
@@ -63,7 +63,7 @@ describe Route do
       context 'when path has not changed' do
         context 'when permanent conflicting redirects exist' do
           it 'is valid' do
-            redirect = RedirectRoute.new(path: 'git_lab/foo/bar', source: create(:group), permanent: true)
+            redirect = build(:redirect_route, :permanent, path: 'git_lab/foo/bar')
             redirect.save!(validate: false)
 
             expect(route.valid?).to be_truthy