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|
# frozen_string_literal: true
# rubocop:todo all
require 'spec_helper'
describe Mongo::CachingCursor do
around do |spec|
Mongo::QueryCache.clear
Mongo::QueryCache.cache { spec.run }
end
let(:authorized_collection) do
authorized_client['caching_cursor']
end
before do
authorized_collection.drop
end
let(:server) do
view.send(:server_selector).select_server(authorized_client.cluster)
end
let(:reply) do
view.send(:send_initial_query, server, Mongo::Operation::Context.new(client: authorized_client))
end
let(:cursor) do
described_class.new(view, reply, server)
end
let(:view) do
Mongo::Collection::View.new(authorized_collection)
end
before do
authorized_collection.delete_many
3.times { |i| authorized_collection.insert_one(_id: i) }
end
describe '#cached_docs' do
context 'when no query has been performed' do
it 'returns nil' do
expect(cursor.cached_docs).to be_nil
end
end
context 'when a query has been performed' do
it 'returns the number of documents' do
cursor.to_a
expect(cursor.cached_docs.length).to eq(3)
expect(cursor.cached_docs).to eq([{ '_id' => 0 }, { '_id' => 1 }, { '_id' => 2 }])
end
end
end
describe '#try_next' do
it 'fetches the next document' do
expect(cursor.try_next).to eq('_id' => 0)
expect(cursor.try_next).to eq('_id' => 1)
expect(cursor.try_next).to eq('_id' => 2)
end
end
describe '#each' do
it 'iterates the cursor' do
result = cursor.each.to_a
expect(result.length).to eq(3)
expect(result).to eq([{ '_id' => 0 }, { '_id' => 1 }, { '_id' => 2 }])
end
end
end
|
