seccomp-validate-samples.rb

# models de exemplo
rails g model product name:string description:text price:decimal
rails g model location lease_at:date return_at:date status:boolean

# application.rb
config.autoload_paths += %W["#{config.root}/app/validators/"]

# date_validator.rb
class DateValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    valid = value.to_date rescue false
    record.errors[attribute] << (options[:message] || "invalid date") unless valid
  end
end

# validações no model
validates :lease_at, presence: true
validates :status, inclusion: [true, false]
validates :name, uniqueness: true
validates :price, numericality: { greater_than: 0 }
validates :lease_at, date: true
validates :password, presence: true, confirmation: true,
                     length: { within: 5..15 },
                     on: :update, if: :password_required?

def password_required?
  (password.present? || password_confirmation.present?)
end

# exemplos de validações
it 'presence' do
  product.price = nil
  product.valid?
  expect(product.errors[:price].any?).to be_truthy
end

it 'uniqueness' do
  dup = product.dup
  dup.save
  product.valid?
  expect(product.errors[:name].any?).to be_truthy
end

it 'numericality' do
  product.price = 'abcde'
  product.valid?
  expect(product.errors[:price].any?).to be_truthy
end

it 'greater_than 0' do
  [0, -1, -100].each do |p|
    product.price = p
    product.valid?
    expect(product.errors[:price].any?).to be_truthy
  end
end

it 'date' do
  ['abcd', 2000].each do |d|
    location.return_at = d
    location.valid?
    expect(location.errors[:return_at].any?).to be_truthy
  end
end

it 'inclusion' do
  location.status = nil
  location.valid?
  expect(location.errors[:status].any?).to be_truthy
end