require 'spec_helper'

describe Gitlab::GithubImport do
  let(:project) { double(:project) }

  describe '.new_client_for' do
    it 'returns a new Client with a custom token' do
      expect(described_class::Client)
        .to receive(:new)
        .with('123', parallel: true)

      described_class.new_client_for(project, token: '123')
    end

    it 'returns a new Client with a token stored in the import data' do
      import_data = double(:import_data, credentials: { user: '123' })

      expect(project)
        .to receive(:import_data)
        .and_return(import_data)

      expect(described_class::Client)
        .to receive(:new)
        .with('123', parallel: true)

      described_class.new_client_for(project)
    end
  end

  describe '.insert_and_return_id' do
    let(:attributes) { { iid: 1, title: 'foo' } }
    let(:project) { create(:project) }

    context 'on PostgreSQL' do
      it 'returns the ID returned by the query' do
        expect(Gitlab::Database)
          .to receive(:bulk_insert)
          .with(Issue.table_name, [attributes], return_ids: true)
          .and_return([10])

        id = described_class.insert_and_return_id(attributes, project.issues)

        expect(id).to eq(10)
      end
    end

    context 'on MySQL' do
      it 'uses a separate query to retrieve the ID' do
        issue = create(:issue, project: project, iid: attributes[:iid])

        expect(Gitlab::Database)
          .to receive(:bulk_insert)
          .with(Issue.table_name, [attributes], return_ids: true)
          .and_return([])

        id = described_class.insert_and_return_id(attributes, project.issues)

        expect(id).to eq(issue.id)
      end
    end
  end

  describe '.ghost_user_id', :clean_gitlab_redis_cache do
    it 'returns the ID of the ghost user' do
      expect(described_class.ghost_user_id).to eq(User.ghost.id)
    end

    it 'caches the ghost user ID' do
      expect(Gitlab::GithubImport::Caching)
        .to receive(:write)
        .once
        .and_call_original

      2.times do
        described_class.ghost_user_id
      end
    end
  end
end