RSpec Matcher for ActsAsParanoid / Paranoia Active Record Model Specs

rspec_soft_delete_shared_example.rb

# Shared specs for models with the `acts_as_paranoid` features.
RSpec.shared_examples :soft_delete_model do

  it { is_expected.to have_db_column(:deleted_at) }

  it 'has a scope to select soft-deleted records' do
    expect(described_class).to respond_to(:only_deleted)
  end

  it 'has a scope to select both not-deleted and soft-deleted records' do
    expect(described_class).to respond_to(:with_deleted)
  end

  context 'deleting an instance' do

    it 'only soft-deletes the model when deleted' do
      subject.destroy

      expect(subject.deleted_at).not_to be_nil
    end

  end

end

This is for simply expressing soft delete as a requirement for data models, when using gems like acts_as_paranoid or paranoia.