require 'spec_helper'
require 'getoptions'

describe Igp::Base::Format do
  describe '#duration' do
    it 'should return nil for nil duration' do
      expect(subject.duration(nil)).to be_nil
    end
    it 'should return string to 6 decimal places for non-nil duration' do
      result = subject.duration(1.0)
      expect(result).to match(/^\d+\.\d{6}$/)
      expect(result.to_f).to eql(1.0)
    end
    it 'should handle integer parameter' do
      result = subject.duration(1)
      expect(result).to match(/^\d+\.\d{6}$/)
      expect(result.to_f).to eql(1.0)
    end
  end

  describe '#header' do
    it 'should output a blank line for nil parameters' do
      result = capture(:stderr) { subject.header(nil) }
      expect(result).to eql("\n")
    end
    it 'should convert an arbitrary array of strings and numbers to a space-delimited output to stderr' do
      result = capture(:stderr) { subject.header('string', 1.0, 'another string', 2.0) }
      expect(result).to eql("string 1.0 another string 2.0\n")
    end
  end

  describe '#log' do
    it 'should output time only for nil parameters' do
      result = capture(:stdout) { subject.log(nil) }
      expect(result).to match(/^.+Z,$/)
    end
    it 'should log successful message (boolean,float,nil) to stdout' do
      result = capture(:stdout) { subject.log(true, 1.0, nil) }
      expect(result).to match(/^.+Z,true,1.0,$/)
    end
    it 'should log unsuccessful message (boolean,nil,string) to stdout' do
      result = capture(:stdout) { subject.log(false, nil, 'message') }
      expect(result).to match(/^.+Z,false,,message$/)
    end
  end
end