class ViewModel::Schemas

def self.verify_schema!(schema, value)
  valid, errors = schema.validate(value)
  unless valid
    error_list = errors.map { |e| "#{e.pointer}: #{e.message}" }.join("\n")
    errors     = 'Error'.pluralize(errors.length)
    raise ViewModel::DeserializationError::InvalidSyntax.new("#{errors} parsing #{schema.description}:\n#{error_list}")
  end
end