Tests for meta_tags (WIP)

spec/system/meta_tags_spec.rb

@@ -0,0 +1,62 @@
+RSpec.describe "Meta Tags" do
+  before do
+    case_study = GovukSchemas::RandomExample.for_schema(frontend_schema: "take_part") do |random|
+      random.merge!(
+        "title" => "Zhe title",
+        "withdrawn_notice" => {},
+        "locale" => "en",
+      )
+    end
+
+    stub_content_store_has_item("/government/get-involved/take-part/some-page", case_study.to_json)
+  end
+
+  it "renders the correct meta tags for pages" do
+    visit "/government/get-involved/take-part/some-page"
+
+    expect(page).to have_css("meta[property='og:title'][content='Zhe title']", visible: false)
+  end
+
+  context "for pages without images" do
+    before do
+      case_study = GovukSchemas::RandomExample.for_schema(frontend_schema: "news_article") do |random|
+        random["details"].delete("image")
+        random["locale"] = "en"
+        random
+      end
+      stub_content_store_has_item("/government/get-involved/take-part/some-page", case_study.to_json)
+    end
+
+    it "does not render image tags" do
+      visit "/government/get-involved/take-part/some-page"
+
+      expect(page).to have_css("meta[name='twitter:card'][content='summary']", visible: false)
+      expect(page).not_to have_css("meta[name='twitter:image']")
+      expect(page).not_to have_css("meta[name='og:image']")
+    end
+  end
+
+  context "for pages with images" do
+    before do
+      case_study = GovukSchemas::RandomExample.for_schema(frontend_schema: "news_article") do |random|
+        random["details"] = random["details"].merge(
+          "image" => {
+            "url" => "https://example.org/image.jpg",
+            "alt_text" => "An accessible alt text",
+          },
+        )
+        random["locale"] = "en"
+        random
+      end
+      stub_content_store_has_item("/government/get-involved/take-part/some-page", case_study.to_json)
+    end
+
+    it "renders image tags" do
+      visit "/government/get-involved/take-part/some-page"
+
+      expect(page).to have_css("meta[name='twitter:card'][content='summary_large_image']", visible: false)
+      expect(page).to have_css("meta[name='twitter:image'][content='https://example.org/image.jpg']", visible: false)
+      expect(page).to have_css("meta[property='og:image'][content='https://example.org/image.jpg']", visible: false)
+    end
+  end
+end