require 'rails_helper'

module MnoEnterprise
  describe ImageHelper do

    let(:folder) { '/app/assets/images/mno_enterprise' }
    let(:root) {"#{Rails.root}#{folder}"}
    let(:path_engine_main_logo) { "#{MnoEnterprise::Engine.root}#{folder}/main-logo.png" }    
    let(:path_main_logo) { "#{root}/main-logo.png" }
    let(:path_main_logo_white) { "#{root}/main-logo-whitebg.png" }

    describe '#main_logo_white_bg_path' do
    
      context 'when no logos exist'  do

        it 'returns the engine main-logo filename' do
          expect(helper.main_logo_white_bg_path).to match('mno_enterprise/main-logo.png')
        end

        it 'returns the engine main-logo full path'  do
          expect(helper.main_logo_white_bg_path(true)).to match(path_engine_main_logo)
        end
      end

      context 'when main-logo.png exists and main-logo-whitebg.png do not exist'  do
        before { allow(File).to receive(:exists?).with(path_main_logo_white).and_return(false) }
        before { allow(File).to receive(:exists?).with(path_main_logo).and_return(true) }
        
        it 'returns the main-logo filename' do
          expect(helper.main_logo_white_bg_path).to match('mno_enterprise/main-logo.png')
        end

        it 'returns the main-logo full path'  do
          expect(helper.main_logo_white_bg_path(true)).to match(path_main_logo)
        end
      end

      context 'when main-logo-whitebg.png exists'  do
        before { allow(File).to receive(:exists?).with(path_main_logo_white).and_return(true) }
        
        it 'returns the filename' do
          expect(helper.main_logo_white_bg_path).to match('mno_enterprise/main-logo-whitebg.png')
        end

        it 'returns the full path'  do
          expect(helper.main_logo_white_bg_path(true)).to match(path_main_logo_white)
        end
      end
    end
    
    describe '#main_logo_path' do

      context 'when there are no logos' do

        it 'returns the engines main-logo' do
          expect(helper.main_logo_path).to match(path_engine_main_logo)
        end
      end

      context 'when main-logo.png exists'  do
        before { allow(File).to receive(:exists?).with(path_main_logo).and_return(true) }

        it 'returns the full path'  do
          expect(helper.main_logo_path).to match(path_main_logo)
        end
      end
    end

    describe '#fit_image' do

      it 'returns the style' do
        expect(helper.fit_image).to match('max-width: 150px; max-height: 150px;')
      end
    end
  end
end