seeds_spec.rb

seeds_spec.rb

require 'rails_helper'

describe "seeds.rb script" do
  def count_all_tables
    ActiveRecord::Base.descendants
      .sort_by(&:to_s).map(&:count)
  end

  it "is idempotent" do
    load Rails.root.join("db", "seeds.rb")

    counts = count_all_tables

    load Rails.root.join("db", "seeds.rb")

    expect(count_all_tables).to eq(counts)
  end
end