.../layout_builder/tests/src/Functional/LayoutSectionTest.php | 11 ++++++-----
 core/profiles/standard/tests/src/Functional/StandardTest.php  |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/core/modules/layout_builder/tests/src/Functional/LayoutSectionTest.php b/core/modules/layout_builder/tests/src/Functional/LayoutSectionTest.php
index d5e0c75..7f9ce7c 100644
--- a/core/modules/layout_builder/tests/src/Functional/LayoutSectionTest.php
+++ b/core/modules/layout_builder/tests/src/Functional/LayoutSectionTest.php
@@ -79,7 +79,7 @@ public function providerTestLayoutSectionFormatter() {
       ],
       'user',
       'user:2',
-      'UNCACHEABLE',
+      'UNCACHEABLE (poor cacheability)',
     ];
     $data['block_with_entity_context'] = [
       [
@@ -173,7 +173,7 @@ public function testLayoutSectionFormatter($layout_data, $expected_selector, $ex
     $this->assertLayoutSection($expected_selector, $expected_content, $expected_cache_contexts, $expected_cache_tags, $expected_dynamic_cache);
 
     $this->drupalGet($canonical_url->toString() . '/layout');
-    $this->assertLayoutSection($expected_selector, $expected_content, $expected_cache_contexts, $expected_cache_tags, 'UNCACHEABLE');
+    $this->assertLayoutSection($expected_selector, $expected_content, $expected_cache_contexts, $expected_cache_tags, 'UNCACHEABLE (poor cacheability)');
   }
 
   /**
@@ -194,14 +194,14 @@ public function testLayoutSectionFormatterAccess() {
     $this->container->get('state')->set('test_block_access', FALSE);
 
     $this->drupalGet($node->toUrl('canonical'));
-    $this->assertLayoutSection('.layout--onecol', NULL, '', '', 'UNCACHEABLE');
+    $this->assertLayoutSection('.layout--onecol', NULL, '', '', 'UNCACHEABLE (poor cacheability)');
     // Ensure the block was not rendered.
     $this->assertSession()->pageTextNotContains('Hello test world');
 
     // Grant access to the block, and ensure it was rendered.
     $this->container->get('state')->set('test_block_access', TRUE);
     $this->drupalGet($node->toUrl('canonical'));
-    $this->assertLayoutSection('.layout--onecol', 'Hello test world', '', '', 'UNCACHEABLE');
+    $this->assertLayoutSection('.layout--onecol', 'Hello test world', '', '', 'UNCACHEABLE (poor cacheability)');
   }
 
   /**
@@ -331,7 +331,8 @@ public function testLayoutDeletingBundle() {
    * @param string $expected_cache_tags
    *   A string of cache tags to be found in the header.
    * @param string $expected_dynamic_cache
-   *   The expected dynamic cache header. Either 'HIT', 'MISS' or 'UNCACHEABLE'.
+   *   The expected dynamic cache header. Either 'HIT', 'MISS' or
+   *   'UNCACHEABLE (poor cacheability)'.
    */
   protected function assertLayoutSection($expected_selector, $expected_content, $expected_cache_contexts = '', $expected_cache_tags = '', $expected_dynamic_cache = 'MISS') {
     $assert_session = $this->assertSession();
diff --git a/core/profiles/standard/tests/src/Functional/StandardTest.php b/core/profiles/standard/tests/src/Functional/StandardTest.php
index f449c10..a2c9329 100644
--- a/core/profiles/standard/tests/src/Functional/StandardTest.php
+++ b/core/profiles/standard/tests/src/Functional/StandardTest.php
@@ -181,7 +181,7 @@ public function testStandard() {
     $this->drupalLogin($this->adminUser);
     $url = Url::fromRoute('contact.site_page');
     $this->drupalGet($url);
-    $this->assertEqual('UNCACHEABLE', $this->drupalGetHeader(DynamicPageCacheSubscriber::HEADER), 'Site-wide contact page cannot be cached by Dynamic Page Cache.');
+    $this->assertEqual('UNCACHEABLE (poor cacheability)', $this->drupalGetHeader(DynamicPageCacheSubscriber::HEADER), 'Site-wide contact page cannot be cached by Dynamic Page Cache.');
 
     $url = Url::fromRoute('<front>');
     $this->drupalGet($url);