.../EntityResource/Block/BlockResourceTestBase.php | 42 +++++++++-------------
 1 file changed, 16 insertions(+), 26 deletions(-)

diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Block/BlockResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/Block/BlockResourceTestBase.php
index 8c692b6..5ef4512 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/Block/BlockResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Block/BlockResourceTestBase.php
@@ -23,7 +23,14 @@
    * {@inheritdoc}
    */
   protected function setUpAuthorization($method) {
-    $this->grantPermissionsToTestedRole(['administer blocks']);
+    switch ($method) {
+      case 'GET':
+        $this->entity->setVisibilityConfig('user_role', [])->save();
+        break;
+      case 'POST':
+        $this->grantPermissionsToTestedRole(['administer blocks']);
+        break;
+    }
   }
 
   /**
@@ -44,18 +51,14 @@ protected function createEntity() {
     // "render on a page" and 'view' as in "read the configuration".
     // This prevents that.
     // @todo Investigate further.
-    if ($this->account) {
-      $block->setVisibilityConfig('user_role', [
-        'id' => 'user_role',
-        'roles' => [
-          'authenticated' => 'authenticated',
-        ],
-        'negate' => FALSE,
-        'context_mapping' => [
-          'user' => '@user.current_user_context:current_user',
-        ],
-      ]);
-    }
+    $block->setVisibilityConfig('user_role', [
+      'id' => 'user_role',
+      'roles' => ['non-existing-role' => 'non-existing-role'],
+      'negate' => FALSE,
+      'context_mapping' => [
+        'user' => '@user.current_user_context:current_user',
+      ],
+    ]);
     $block->save();
 
     return $block;
@@ -86,19 +89,6 @@ protected function getExpectedNormalizedEntity() {
       ],
       'visibility' => [],
     ];
-    if ($this->account) {
-      $normalization['dependencies']['module'][] = 'user';
-      $normalization['visibility']['user_role'] = [
-        'id' => 'user_role',
-        'roles' => [
-          'authenticated' => 'authenticated',
-        ],
-        'negate' => FALSE,
-        'context_mapping' => [
-          'user' => '@user.current_user_context:current_user',
-        ],
-      ];
-    }
 
     return $normalization;
   }