.../EntityResource/Comment/CommentHalJsonAnonTest.php |  2 +-
 .../EntityResource/Comment/CommentHalJsonTestBase.php | 19 +++++++++++++++++++
 .../EntityResource/Node/NodeHalJsonAnonTest.php       | 13 +++++++++++++
 3 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonAnonTest.php b/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonAnonTest.php
index 9b0cee2..3edd9b1 100644
--- a/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonAnonTest.php
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonAnonTest.php
@@ -25,11 +25,11 @@ class CommentHalJsonAnonTest extends CommentHalJsonTestBase {
    * @see ::setUpAuthorization
    */
   protected static $patchProtectedFieldNames = [
-    'entity_id',
     'changed',
     'thread',
     'entity_type',
     'field_name',
+    'entity_id',
   ];
 
 }
diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonTestBase.php b/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonTestBase.php
index 3deb0ea..1939e04 100644
--- a/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonTestBase.php
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Comment/CommentHalJsonTestBase.php
@@ -26,6 +26,25 @@
    */
   protected static $mimeType = 'application/hal+json';
 
+  /**
+   * {@inheritdoc}
+   *
+   * The HAL+JSON format causes different PATCH-protected fields. For some
+   * reason, the 'pid' and 'homepage' fields are NOT PATCH-protected, even
+   * though they are for non-HAL+JSON serializations.
+   *
+   * @todo fix in https://www.drupal.org/node/2824271
+   */
+  protected static $patchProtectedFieldNames = [
+    'status',
+    'created',
+    'changed',
+    'thread',
+    'entity_type',
+    'field_name',
+    'entity_id',
+    'uid',
+  ];
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php b/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php
index 2de6539..e218a73 100644
--- a/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php
@@ -33,6 +33,19 @@ class NodeHalJsonAnonTest extends NodeResourceTestBase {
   /**
    * {@inheritdoc}
    */
+  protected static $patchProtectedFieldNames = [
+    'revision_timestamp',
+    'created',
+    'changed',
+    'promote',
+    'sticky',
+    'path',
+    'revision_uid',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
   protected function getExpectedNormalizedEntity() {
     $default_normalization = parent::getExpectedNormalizedEntity();