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Contents
require 'spec_helper'
RSpec.describe ROM::Relation::Loaded do
include_context 'no container'
include_context 'users and tasks'
subject(:users) { ROM::Relation::Loaded.new(users_relation) }
describe '#each' do
it 'yields tuples from relation' do
result = []
users.each do |tuple|
result << tuple
end
expect(result).to match_array([
{ name: 'Jane', email: 'jane@doe.org' },
{ name: 'Joe', email: 'joe@doe.org' }
])
end
it 'returns enumerator when block is not provided' do
expect(users.each.to_a).to eql(users.collection.to_a)
end
end
describe '#to_ary' do
it 'coerces to an array' do
expect(users.to_ary).to match_array([
{ name: 'Jane', email: 'jane@doe.org' },
{ name: 'Joe', email: 'joe@doe.org' }
])
end
end
describe '#pluck' do
it 'returns a list of values under provided key' do
expect(users.pluck(:email)).to eql(%w(joe@doe.org jane@doe.org))
end
end
describe '#primary_keys' do
it 'returns a list of primary key values' do
expect(users.source).to receive(:primary_key).and_return(:name)
expect(users.primary_keys).to eql(%w(Joe Jane))
end
end
it_behaves_like 'a relation that returns one tuple' do
let(:relation) { users }
end
end
Version data entries
18 entries across 18 versions & 1 rubygems