Add HTML validation for Nunjucks page template

alphagov · Nov 2, 2023 · 1ebf862 · 1ebf862
1 parent 5529af2
commit 1ebf862
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/packages/govuk-frontend/src/govuk/template.test.js b/packages/govuk-frontend/src/govuk/template.test.js
@@ -1,5 +1,7 @@
 const crypto = require('crypto')
 
+require('html-validate/jest')
+
 const { renderTemplate } = require('@govuk-frontend/helpers/nunjucks')
 const { nunjucksEnv } = require('@govuk-frontend/lib/components')
 
@@ -53,6 +55,16 @@ describe('Template', () => {
 
       expect($('html').hasClass('my-custom-class')).toBeTruthy()
     })
+
+    it('renders valid HTML', () => {
+      expect(renderTemplate('govuk/template.njk').html()).toHTMLValidate({
+        extends: ['html-validate:document'],
+        rules: {
+          // Allow optional subresource integrity (SRI)
+          'require-sri': 'off'
+        }
+      })
+    })
   })
 
   describe('<head>', () => {