diff -u b/core/modules/block_content/tests/src/Kernel/BlockContentPermissionsTest.php b/core/modules/block_content/tests/src/Kernel/BlockContentPermissionsTest.php
--- b/core/modules/block_content/tests/src/Kernel/BlockContentPermissionsTest.php
+++ b/core/modules/block_content/tests/src/Kernel/BlockContentPermissionsTest.php
@@ -70,15 +70,15 @@
 
     $permissions = $this->permissionHandler->getPermissions();
 
-    // Assert the basic permissions has been created.
-    $this->assertArrayHasKey('edit any basic block', $permissions, 'The per-block dynamic permission exists.');
+    // Assert the basic permission has been created.
+    $this->assertArrayHasKey('edit any basic block', $permissions, 'The per-block-type permission exists.');
     $this->assertEquals(
       '<em class="placeholder">A basic block type</em>: Edit any content',
       $permissions['edit any basic block']['title']->render()
     );
 
-    // Assert the square permissions has been created.
-    $this->assertArrayHasKey('edit any square block', $permissions, 'The per-block dynamic permission exists.');
+    // Assert the square permission has been created.
+    $this->assertArrayHasKey('edit any square block', $permissions, 'The per-block-type permission exists.');
     $this->assertEquals(
       '<em class="placeholder">A square block type</em>: Edit any content',
       $permissions['edit any square block']['title']->render()