require 'rails_helper'

describe ApplicationHelper do
  describe '#code_tag' do
    context 'with code' do
      it "builds a 'pre' tag" do
        code = 'puts 42'
        expect(code_tag(code)).to eq("<pre><code>#{code}</code></pre>")
      end
    end

    context 'without code' do
      it 'calls #empty' do
        expect(code_tag('')).to eq(empty)
      end
    end
  end

  describe '#empty' do
    it "builds an 'i' tag" do
      expect(empty).to eq('<i class="empty fa fa-minus"></i>')
    end
  end

  describe '#label_column' do
    it 'translates the label' do
      expect(I18n).to receive(:translate).at_least(:once)
      label_column('foo')
    end
  end

  describe '#no' do
    it "builds an 'i' tag" do
      expect(no).to eq('<i class="glyphicon glyphicon-remove"></i>')
    end
  end

  describe '#progress_bar' do
    let(:html) { progress_bar(value) }
    let(:value) { 42 }

    it "builds nested 'div' tags" do
      expect(html).to have_css('div.progress div.progress-bar')
    end

    it 'assigns the correct text' do
      expect(html).to have_text("#{value}%")
    end

    it 'uses the correct width' do
      expect(html).to have_css("div.progress-bar[style='width: 42%;']")
    end
  end

  describe '#row' do
    let(:html) { row(label: 'foo', value: 42) }

    it "builds nested 'div' tags" do
      expect(html.scan(/<\/div>/).length).to eq(3)
    end
  end

  describe '#value_column' do
    context 'without a value' do
      let(:html) { value_column('') }

      it "builds a 'div' tag" do
        expect(html).to start_with('<div')
      end

      it 'calls #empty' do
        expect(html).to include(empty)
      end
    end

    context "with a 'false' value" do
      let(:html) { value_column(false) }

      it "builds a 'div' tag" do
        expect(html).to start_with('<div')
      end

      it 'calls #no' do
        expect(html).to include(no)
      end
    end

    context "with a 'true' value" do
      let(:html) { value_column(true) }

      it "builds a 'div' tag" do
        expect(html).to start_with('<div')
      end

      it 'calls #yes' do
        expect(html).to include(yes)
      end
    end

    context 'with a non-boolean value' do
      let(:html) { value_column(value) }
      let(:value) { [42] }

      it "builds a 'div' tag" do
        expect(html).to start_with('<div')
      end

      it "uses the value's string representation" do
        expect(value).to receive(:to_s)
        html
      end
    end
  end

  describe '#yes' do
    it "builds an 'i' tag" do
      expect(yes).to eq('<i class="glyphicon glyphicon-ok"></i>')
    end
  end
end