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Contents
require "spec_helper"
describe Mongoid::Shardable do
describe ".included" do
let(:klass) do
Class.new do
include Mongoid::Shardable
end
end
it "adds an shard_key_fields accessor" do
expect(klass).to respond_to(:shard_key_fields)
end
it "defaults shard_key_fields to an empty array" do
expect(klass.shard_key_fields).to be_empty
end
end
describe ".shard_key" do
let(:klass) do
Band
end
before do
Band.shard_key(:name)
end
it "specifies a shard key on the collection" do
expect(klass.shard_key_fields).to eq([:name])
end
context 'when a relation is used as the shard key' do
let(:klass) do
Game
end
before do
Game.shard_key(:person)
end
it "converts the shard key to the foreign key field" do
expect(klass.shard_key_fields).to eq([:person_id])
end
end
end
describe '#shard_key_selector' do
subject { instance.shard_key_selector }
let(:klass) { Band }
let(:value) { 'a-brand-name' }
before { klass.shard_key(:name) }
context 'when record is new' do
let(:instance) { klass.new(name: value) }
it { is_expected.to eq({ 'name' => value }) }
context 'changing shard key value' do
let(:new_value) { 'a-new-value' }
before do
instance.name = new_value
end
it { is_expected.to eq({ 'name' => new_value }) }
end
end
context 'when record is persisted' do
let(:instance) { klass.create(name: value) }
it { is_expected.to eq({ 'name' => value }) }
context 'changing shard key value' do
let(:new_value) { 'a-new-value' }
before do
instance.name = new_value
end
it { is_expected.to eq({ 'name' => value }) }
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems