require 'spec_helper'

describe Crono::Job do
  let(:period) { Crono::Period.new(2.day) }
  let(:job) { Crono::Job.new(TestJob, period) }
  let(:failing_job) { Crono::Job.new(TestFailingJob, period) }

  it 'should contain performer and period' do
    expect(job.performer).to be TestJob
    expect(job.period).to be period
  end

  describe '#perform' do
    after { job.send(:model).destroy }

    it 'should run performer in separate thread' do
      expect(job).to receive(:save)
      thread = job.perform.join
      expect(thread).to be_stop
    end

    it 'should save performin errors to log' do
      thread = failing_job.perform.join
      expect(thread).to be_stop
      saved_log = Crono::CronoJob.find_by(job_id: failing_job.job_id).log
      expect(saved_log).to include 'Some error'
    end

    xit 'should set Job#healthy to true if perform ok' do
      class TestJob
        def perform
          @_crono_job
        end
      end
      job.perform.join
    end

    it 'should set Job#healthy to false if perform with error' do
      failing_job.perform.join
      expect(failing_job.healthy).to be false
    end

    it 'should set @_crono_job variable to instance' do
      job.perform
    end
  end

  describe '#description' do
    it 'should return job identificator' do
      expect(job.description).to be_eql('Perform TestJob every 2 days')
    end
  end

  describe '#save' do
    it 'should save new job to DB' do
      expect(Crono::CronoJob.where(job_id: job.job_id)).to_not exist
      job.save
      expect(Crono::CronoJob.where(job_id: job.job_id)).to exist
    end

    it 'should update saved job' do
      job.last_performed_at = Time.now
      job.healthy = true
      job.save
      @crono_job = Crono::CronoJob.find_by(job_id: job.job_id)
      expect(@crono_job.last_performed_at.utc.to_s).to be_eql job.last_performed_at.utc.to_s
      expect(@crono_job.healthy).to be true
    end

    it 'should save and truncate job log' do
      message = 'test message'
      job.send(:log, message)
      job.save
      expect(job.send(:model).reload.log).to include message
      expect(job.job_log.string).to be_empty
    end
  end

  describe '#load' do
    before do
      @saved_last_performed_at = job.last_performed_at = Time.now
      job.save
    end

    it 'should load last_performed_at from DB' do
      @job = Crono::Job.new(TestJob, period)
      @job.load
      expect(@job.last_performed_at.utc.to_s).to be_eql @saved_last_performed_at.utc.to_s
    end
  end

  describe '#log' do
    it 'should write log messages to both common and job log' do
      message = 'Test message'
      expect(job.logger).to receive(:log).with(Logger::INFO, message)
      expect(job.job_logger).to receive(:log).with(Logger::INFO, message)
      job.send(:log, message)
    end

    it 'should write job log to Job#job_log' do
      message = 'Test message'
      job.send(:log, message)
      expect(job.job_log.string).to include(message)
    end
  end

  describe '#log_error' do
    it 'should call log with ERROR severity' do
      message = 'Test message'
      expect(job).to receive(:log).with(message, Logger::ERROR)
      job.send(:log_error, message)
    end
  end
end