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#
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require 'spec_helper'

describe Elasticsearch::Persistence::Repository::Find do
  after do
    begin; repository.delete_index!; rescue; end
  end

  let(:repository) do
    DEFAULT_REPOSITORY
  end

  describe '#exists?' do
    context 'when the document exists' do
      let(:id) do
        repository.save(a: 1)['_id']
      end

      it 'returns true' do
        expect(repository.exists?(id)).to be(true)
      end
    end

    context 'when the document does not exist' do
      it 'returns false' do
        expect(repository.exists?('1')).to be(false)
      end
    end
  end

  describe '#find' do
    context 'when options are not provided' do
      context 'when a single id is provided' do
        let!(:id) do
          repository.save(a: 1)['_id']
        end

        it 'retrieves the document' do
          expect(repository.find(id)).to eq('a' => 1)
        end
      end

      context 'when an array of ids is provided' do
        let!(:ids) do
          3.times.collect do |i|
            repository.save(a: i)['_id']
          end
        end

        it 'retrieves the documents' do
          expect(repository.find(ids)).to eq([
                                               { 'a' =>0 },
                                               { 'a' => 1 },
                                               { 'a' => 2 }
                                             ])
        end

        context 'when some documents are found and some are not' do
          before do
            ids[1] = 22
            ids
          end

          it 'returns nil in the result list for the documents not found' do
            expect(repository.find(ids)).to eq([
                                                 { 'a' =>0 },
                                                 nil,
                                                 { 'a' => 2 }
                                               ])
          end
        end
      end

      context 'when multiple ids are provided' do
        let!(:ids) do
          3.times.collect do |i|
            repository.save(a: i)['_id']
          end
        end

        it 'retrieves the documents' do
          expect(repository.find(*ids)).to eq([
                                                { 'a' =>0 },
                                                { 'a' => 1 },
                                                { 'a' => 2 }
                                              ])
        end
      end

      context 'when the document cannot be found' do
        before do
          begin; repository.create_index!; rescue; end
        end

        it 'raises a DocumentNotFound exception' do
          expect {
            repository.find(1)
          }.to raise_exception(Elasticsearch::Persistence::Repository::DocumentNotFound)
        end
      end
    end
  end
end