require 'spec_helper'

module Wicoris::Postman
  describe FaxMachine do
    let(:job) { double('job') }
    let(:fax) { FaxMachine.new(job) }

    before do
      fax.stub(:system)
    end

    describe '#run' do
      let(:logger) { double('logger') }

      it 'faxes the document' do
        fax.stub(:command).and_return('chunky bacon')
        fax.should_receive(:system).with('chunky bacon')
        fax.run
      end

      context 'with noop' do
        let(:fax) { FaxMachine.new(job, :noop => true) }

        it 'does not fax the job' do
          fax.stub(:command).and_return('chunky bacon')
          fax.should_not_receive(:system)
          fax.run
        end
      end
    end

    describe '#command' do
      it 'should return the command-line for sending a fax' do
        fax.stub(:validated_phone).and_return('042')
        job.stub(:letter).and_return('/tmp/foo.pdf')
        expect(fax.send(:command)).to eq(
          "lp -d Fax -o phone=042 '/tmp/foo.pdf'")
      end
    end

    describe '#phone' do
      it 'adds the dial-out prefix' do
        job.stub(:phone).and_return('0123456789')
        expect(fax.validated_phone).to eq '00123456789'
      end

      it 'removes all whitespaces and dashes from the number' do
        job.stub(:phone).and_return("\t012-345 6789 \n")
        expect(fax.validated_phone).to eq '00123456789'
      end

      it 'raises when phone is missing' do
        job.stub(:phone).and_return(nil)
        expect{ fax.validated_phone }.to raise_error ArgumentError
      end

      it 'raises when one leading zero is missing' do
        job.stub(:phone).and_return('1234567890')
        expect{ fax.validated_phone }.to raise_error ArgumentError
      end

      it 'raises when begins with more then one zero' do
        job.stub(:phone).and_return('00123456789')
        expect{ fax.validated_phone }.to raise_error ArgumentError
      end

      it 'raises when shorter then 9 digits' do
        job.stub(:phone).and_return('01234567')
        expect{ fax.validated_phone }.to raise_error ArgumentError
      end

      it 'raises when number contains invalid chars' do
        job.stub(:phone).and_return('01234hello')
        expect{ fax.validated_phone }.to raise_error ArgumentError
      end

      it 'includes the phone number in the exception' do
        job.stub(:phone).and_return('42')
        expect{ fax.validated_phone }.to raise_error /42/
      end
    end
  end
end