Add column 'service_binding_k8s_enabled' to apps table

Author: svkrieger

db/migrations/20250225132929_add_apps_service_binding_k8s_enabled_column.rb

@@ -0,0 +1,5 @@
+Sequel.migration do
+  change do
+    add_column :apps, :service_binding_k8s_enabled, :boolean, default: false, null: false
+  end
+end

spec/migrations/20250225132929_add_apps_service_binding_k8s_enabled_column_spec.rb

@@ -0,0 +1,35 @@
+require 'spec_helper'
+require 'migrations/helpers/migration_shared_context'
+
+RSpec.describe 'migration to add service_binding_k8s_enabled column to apps table', isolation: :truncation, type: :migration do
+  include_context 'migration' do
+    let(:migration_filename) { '20250225132929_add_apps_service_binding_k8s_enabled_column.rb' }
+  end
+
+  describe 'apps table' do
+    subject(:run_migration) { Sequel::Migrator.run(db, migrations_path, target: current_migration_index, allow_missing_migration_files: true) }
+
+    it 'adds a column `service_binding_k8s_enabled`' do
+      expect(db[:apps].columns).not_to include(:service_binding_k8s_enabled)
+      run_migration
+      expect(db[:apps].columns).to include(:service_binding_k8s_enabled)
+    end
+
+    it 'sets the default value of existing entries to false' do
+      db[:apps].insert(guid: 'existing_app_guid')
+      run_migration
+      expect(db[:apps].first(guid: 'existing_app_guid')[:service_binding_k8s_enabled]).to be(false)
+    end
+
+    it 'sets the default value of new entries to false' do
+      run_migration
+      db[:apps].insert(guid: 'new_app_guid')
+      expect(db[:apps].first(guid: 'new_app_guid')[:service_binding_k8s_enabled]).to be(false)
+    end
+
+    it 'forbids null values' do
+      run_migration
+      expect { db[:apps].insert(guid: 'app_guid__nil', service_binding_k8s_enabled: nil) }.to raise_error(Sequel::NotNullConstraintViolation)
+    end
+  end
+end