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Contents
require 'spec_helper'
require 'rom/memory'
RSpec.describe 'Mappers / Attributes value' do
include_context 'container'
before do
configuration.relation(:users)
end
it 'allows to manipulate attribute value' do
class Test::UserMapper < ROM::Mapper
relation :users
attribute :id
attribute :name, from: :first_name do
'John'
end
attribute :age do
9+9
end
attribute :weight do |t|
t+15
end
end
configuration.register_mapper(Test::UserMapper)
container.relations.users << {
id: 123,
first_name: 'Jane',
weight: 75
}
jane = container.relation(:users).as(:users).first
expect(jane).to eql(id: 123, name: 'John', weight: 90, age: 18)
end
it 'raise ArgumentError if type and block used at the same time' do
expect {
class Test::UserMapper < ROM::Mapper
relation :users
attribute :name, type: :string do
'John'
end
end
}.to raise_error(ArgumentError, "can't specify type and block at the same time")
end
end
Version data entries
18 entries across 18 versions & 1 rubygems