thoughtbot--factory_bot/spec/acceptance/sequence_resetting_spec.rb

describe "FactoryBot.rewind_sequences" do
  include FactoryBot::Syntax::Methods

  it "resets all sequences back to their starting values" do
    FactoryBot.define do
      sequence(:email) { |n| "somebody#{n}@example.com" }
      sequence(:name, %w[Joe Josh].to_enum)
    end

    2.times do
      generate(:email)
      generate(:name)
    end

    FactoryBot.rewind_sequences

    email = generate(:email)
    name = generate(:name)

    expect(email).to eq "somebody1@example.com"
    expect(name).to eq "Joe"
  end

  it "resets inline sequences back to their starting value" do
    class User
      attr_accessor :email
    end

    FactoryBot.define do
      factory :user do
        sequence(:email) { |n| "somebody#{n}@example.com" }
      end
    end

    build_list(:user, 2)

    FactoryBot.rewind_sequences

    user = build(:user)

    expect(user.email).to eq "somebody1@example.com"
  end

  it "does not collide with globally registered factories" do
    class User
      attr_accessor :email
    end

    FactoryBot.define do
      sequence(:email) { |n| "global-somebody#{n}@example.com" }

      factory :user do
        sequence(:email) { |n| "local-somebody#{n}@example.com" }
      end
    end

    2.times do
      generate(:email)
    end

    build_list(:user, 2)

    FactoryBot.rewind_sequences

    user = build(:user)
    email = generate(:email)

    expect(user.email).to eq "local-somebody1@example.com"
    expect(email).to eq "global-somebody1@example.com"
  end

  it "still allows global sequences prefixed with a factory name" do
    class User
      attr_accessor :email
    end

    FactoryBot.define do
      sequence(:user_email) { |n| "global-somebody#{n}@example.com" }

      factory :user do
        sequence(:email) { |n| "local-somebody#{n}@example.com" }
      end
    end

    2.times do
      generate(:user_email)
    end

    build_list(:user, 2)

    FactoryBot.rewind_sequences

    user = build(:user)
    email = generate(:user_email)

    expect(user.email).to eq "local-somebody1@example.com"
    expect(email).to eq "global-somebody1@example.com"
  end
end