Fix codecoverage

Author: eps1lon

src/__tests__/role.js

@@ -164,7 +164,7 @@ test('considers the computed visibility style not the parent', () => {
   // the following markup. This behavior might change depending on how
   // https://github.com/w3c/aria/issues/1055 is resolved.
   const {getByRole} = render(
-    '<div style="visibility: hidden;"><ul style="visibility: visible;" /></div>',
+    '<div style="visibility: hidden;"><main style="visibility: visible;"><ul /></main></div>',
   )
 
   expect(getByRole('list')).not.toBeNull()

src/role-helpers.js

@@ -132,7 +132,7 @@ function getRoles(container, {hidden = false} = {}) {
     }, {})
 }
 
-function prettyRoles(dom, {hidden = false} = {}) {
+function prettyRoles(dom, {hidden}) {
   const roles = getRoles(dom, {hidden})
 
   return Object.entries(roles)