From b3e92a4800c4d6dd388cb7a7b7539a01ea1a8350 Mon Sep 17 00:00:00 2001
From: Oliver Byford <oliver.byford@digital.cabinet-office.gov.uk>
Date: Fri, 8 Jan 2021 15:08:41 +0000
Subject: [PATCH] Test for display attribute on header fallback png

---
 src/govuk/components/header/template.test.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/govuk/components/header/template.test.js b/src/govuk/components/header/template.test.js
index fcd2d219180..3f66458b86b 100644
--- a/src/govuk/components/header/template.test.js
+++ b/src/govuk/components/header/template.test.js
@@ -226,6 +226,10 @@ describe('header', () => {
         // Cheerio converts xhref to href - https://github.com/cheeriojs/cheerio/issues/1101
         expect($fallbackImage.attr('href')).toEqual('data:,')
       })
+
+      it('hides the image when SVG is supported by using the SVG display attribute', () => {
+        expect($fallbackImage.attr('display')).toEqual('none')
+      })
     })
   })
 })