Merge branch 'mk-future-proof-migration-spec' into 'master'

Future proof migration spec from irrelevant failures

Closes #3102

See merge request !2635

spec/migrations/update_authorized_keys_file_spec.rb

@@ -11,13 +11,13 @@
         ActiveRecord::Base.connection.change_column_null :application_settings, :authorized_keys_enabled, true
         ActiveRecord::Base.connection.change_column :application_settings, :authorized_keys_enabled, :boolean, default: nil
 
-        ApplicationSetting.create!(authorized_keys_enabled: nil, mirror_max_delay: 300)
+        described_class::ApplicationSetting.create!(authorized_keys_enabled: nil)
       end
 
       it 'sets authorized_keys_enabled to true' do
         migration.up
 
-        expect(ApplicationSetting.last.authorized_keys_enabled).to be_truthy
+        expect(described_class::ApplicationSetting.last.authorized_keys_enabled).to be_truthy
       end
 
       context 'there are keys created before and after the cutoff datetime' do
@@ -83,11 +83,11 @@
       end
 
       context 'when is a record in application_settings table' do
-        before do
-          ApplicationSetting.create!(authorized_keys_enabled: true, mirror_max_delay: 300)
-        end
-
         context 'when authorized_keys_enabled is true' do
+          before do
+            described_class::ApplicationSetting.create!(authorized_keys_enabled: true)
+          end
+
           it { is_expected.to be_truthy }
         end
 
@@ -97,7 +97,7 @@
             ActiveRecord::Base.connection.change_column_null :application_settings, :authorized_keys_enabled, true
             ActiveRecord::Base.connection.change_column :application_settings, :authorized_keys_enabled, :boolean, default: nil
 
-            ApplicationSetting.first.update(authorized_keys_enabled: nil, mirror_max_delay: 300)
+            described_class::ApplicationSetting.create!(authorized_keys_enabled: nil)
           end
 
           it { is_expected.to be_truthy }
@@ -105,7 +105,7 @@
 
         context 'when authorized_keys_enabled is explicitly false' do
           before do
-            ApplicationSetting.first.update!(authorized_keys_enabled: false, mirror_max_delay: 300)
+            described_class::ApplicationSetting.create!(authorized_keys_enabled: false)
           end
 
           it { is_expected.to be_falsey }
@@ -118,7 +118,7 @@
 
       context 'when there is no record in application_settings table' do
         before do
-          expect(ApplicationSetting.count).to eq(0)
+          expect(described_class::ApplicationSetting.count).to eq(0)
         end
 
         it { is_expected.to be_falsey }