1 files changed, 169 insertions, 0 deletions
diff --git a/spec/components/pajamas/banner_component_spec.rb b/spec/components/pajamas/banner_component_spec.rb
new file mode 100644
index 00000000000..5969f06dbad
--- /dev/null
+++ b/spec/components/pajamas/banner_component_spec.rb
@@ -0,0 +1,169 @@
+# frozen_string_literal: true
+require "spec_helper"
+
+RSpec.describe Pajamas::BannerComponent, type: :component do
+  subject do
+    described_class.new(**options)
+  end
+
+  let(:title) { "Banner title" }
+  let(:content) { "Banner content"}
+  let(:options) { {} }
+
+  describe 'basic usage' do
+    before do
+      render_inline(subject) do |c|
+        c.title { title }
+        content
+      end
+    end
+
+    it 'renders its content' do
+      expect(rendered_component).to have_text content
+    end
+
+    it 'renders its title' do
+      expect(rendered_component).to have_css "h1[class='gl-banner-title']", text: title
+    end
+
+    it 'renders a close button' do
+      expect(rendered_component).to have_css "button.gl-banner-close"
+    end
+
+    describe 'button_text and button_link' do
+      let(:options) { { button_text: 'Learn more', button_link: '/learn-more' } }
+
+      it 'define the primary action' do
+        expect(rendered_component).to have_css "a.btn-confirm.gl-button[href='/learn-more']", text: 'Learn more'
+      end
+    end
+
+    describe 'banner_options' do
+      let(:options) { { banner_options: { class: "baz", data: { foo: "bar" } } } }
+
+      it 'are on the banner' do
+        expect(rendered_component).to have_css ".gl-banner.baz[data-foo='bar']"
+      end
+
+      context 'with custom classes' do
+        let(:options) { { variant: :introduction, banner_options: { class: 'extra special' } } }
+
+        it 'don\'t conflict with internal banner_classes' do
+          expect(rendered_component).to have_css '.extra.special.gl-banner-introduction.gl-banner'
+        end
+      end
+    end
+
+    describe 'close_options' do
+      let(:options) { { close_options: { class: "js-foo", data: { uid: "123" } } } }
+
+      it 'are on the close button' do
+        expect(rendered_component).to have_css "button.gl-banner-close.js-foo[data-uid='123']"
+      end
+    end
+
+    describe 'embedded' do
+      context 'by default (false)' do
+        it 'keeps the banner\'s borders' do
+          expect(rendered_component).not_to have_css ".gl-banner.gl-border-none"
+        end
+      end
+
+      context 'when set to true' do
+        let(:options) { { embedded: true } }
+
+        it 'removes the banner\'s borders' do
+          expect(rendered_component).to have_css ".gl-banner.gl-border-none"
+        end
+      end
+    end
+
+    describe 'variant' do
+      context 'by default (promotion)' do
+        it 'applies no variant class' do
+          expect(rendered_component).to have_css "[class='gl-banner']"
+        end
+      end
+
+      context 'when set to introduction' do
+        let(:options) { { variant: :introduction } }
+
+        it "applies the introduction class to the banner" do
+          expect(rendered_component).to have_css ".gl-banner.gl-banner-introduction"
+        end
+
+        it "applies the confirm class to the close button" do
+          expect(rendered_component).to have_css ".gl-banner-close.btn-confirm.btn-confirm-tertiary"
+        end
+      end
+
+      context 'when set to unknown variant' do
+        let(:options) { { variant: :foobar } }
+
+        it 'ignores the unknown variant' do
+          expect(rendered_component).to have_css "[class='gl-banner']"
+        end
+      end
+    end
+
+    describe 'illustration' do
+      it 'has none by default' do
+        expect(rendered_component).not_to have_css ".gl-banner-illustration"
+      end
+
+      context 'with svg_path' do
+        let(:options) { { svg_path: 'logo.svg' } }
+
+        it 'renders an image as illustration' do
+          expect(rendered_component).to have_css ".gl-banner-illustration img"
+        end
+      end
+    end
+  end
+
+  context 'with illustration slot' do
+    before do
+      render_inline(subject) do |c|
+        c.title { title }
+        c.illustration { "<svg></svg>".html_safe }
+        content
+      end
+    end
+
+    it 'renders the slot content as illustration' do
+      expect(rendered_component).to have_css ".gl-banner-illustration svg"
+    end
+
+    context 'and conflicting svg_path' do
+      let(:options) { { svg_path: 'logo.svg' } }
+
+      it 'uses the slot content' do
+        expect(rendered_component).to have_css ".gl-banner-illustration svg"
+        expect(rendered_component).not_to have_css ".gl-banner-illustration img"
+      end
+    end
+  end
+
+  context 'with primary_action slot' do
+    before do
+      render_inline(subject) do |c|
+        c.title { title }
+        c.primary_action { "<a class='special' href='#'>Special</a>".html_safe }
+        content
+      end
+    end
+
+    it 'renders the slot content as the primary action' do
+      expect(rendered_component).to have_css "a.special", text: 'Special'
+    end
+
+    context 'and conflicting button_text and button_link' do
+      let(:options) { { button_text: 'Not special', button_link: '/' } }
+
+      it 'uses the slot content' do
+        expect(rendered_component).to have_css "a.special[href='#']", text: 'Special'
+        expect(rendered_component).not_to have_css "a.btn[href='/']"
+      end
+    end
+  end
+end