require 'spec_helper'

describe SequelRails::Storage::Sqlite, :sqlite do
  let(:config) do
    {
      'adapter' => 'sqlite3',
      'database' => database,
    }
  end
  subject { described_class.new config }

  context 'when database is not in memory' do
    let(:database) { 'test_database.sqlite' }
    let(:database_path) { "#{Combustion::Application.root}/#{database}" }

    describe '#_create' do
      it 'defer to Sequel' do
        path = double(:path)
        allow(subject).to receive(:path).and_return path
        expect(::Sequel).to receive(:connect).with({
          'adapter' => 'sqlite3',
          'database' => path
        })
        subject._create
      end
    end

    describe '#_drop' do
      it 'delete the database file' do
        path = double(:path, :file? => true)
        allow(subject).to receive(:path).and_return path
        expect(path).to receive :unlink
        subject._drop
      end
    end

    describe '#_dump' do
      let(:dump_file_name) { 'dump.sql' }
      it 'uses the sqlite3 command' do
        expect(subject).to receive(:`).with(
          "sqlite3 #{database_path} .schema > #{dump_file_name}"
        )
        subject._dump dump_file_name
      end
    end

    describe '#_load' do
      let(:dump_file_name) { 'dump.sql' }
      it 'uses the sqlite3 command' do
        expect(subject).to receive(:`).with(
          "sqlite3 #{database_path} < #{dump_file_name}"
        )
        subject._load dump_file_name
      end
    end
  end

  context 'when database is in memory' do
    let(:database) { ':memory:' }

    describe '#_create' do
      it "don't do anything" do
        expect(::Sequel).to_not receive(:connect)
        subject._create
      end
    end

    describe '#_drop' do
      it 'do not try to delete the database file' do
        path = double(:path, :file? => true)
        allow(subject).to receive(:path).and_return path
        expect(path).to_not receive :unlink
        subject._drop
      end
    end

    describe '#_dump' do
      it 'do not dump anything' do
        expect(subject).to_not receive(:`)
        subject._dump 'dump.sql'
      end
    end

    describe '#_load' do
      it 'do not load anything' do
        expect(subject).to_not receive(:`)
        subject._load 'dump.sql'
      end
    end
  end
end