diff --git a/core/modules/rest/src/Tests/CreateTest.php b/core/modules/rest/src/Tests/CreateTest.php
index d125f1ba2356e732519d8552be7513fd4c8af043..98b944a4611a6d77177bdc0e786fcf09d1e14ab3 100644
--- a/core/modules/rest/src/Tests/CreateTest.php
+++ b/core/modules/rest/src/Tests/CreateTest.php
@@ -100,13 +100,13 @@ public function testCreateWithoutPermission() {
   }
 
   /**
-   * Tests several valid and invalid create requests for 'entity_test' entity type.
+   * Tests valid and invalid create requests for 'entity_test' entity type.
    */
   public function testCreateEntityTest() {
     $entity_type = 'entity_test';
     // Enables the REST service for 'entity_test' entity type.
     $this->enableService('entity:' . $entity_type, 'POST');
-    // Create two accounts that have the required permissions to create resources.
+    // Create two accounts with the required permissions to create resources.
     // The second one has administrative permissions.
     $accounts = $this->createAccountPerEntity($entity_type);
 
@@ -122,7 +122,8 @@ public function testCreateEntityTest() {
 
       // Create the entity over the REST API.
       $this->assertCreateEntityOverRestApi($entity_type, $serialized);
-      // Get the entity ID from the location header and try to read it from the database.
+      // Get the entity ID from the location header and try to read it from the
+      // database.
       $this->assertReadEntityIdFromHeaderAndDb($entity_type, $entity, $entity_values);
 
       // Try to create an entity with an access protected field.
@@ -139,7 +140,8 @@ public function testCreateEntityTest() {
 
       $serialized = $this->serializer->serialize($entity, $this->defaultFormat, ['account' => $account]);
       $this->httpRequest('entity/' . $entity_type, 'POST', $serialized, $this->defaultMimeType);
-      // The value selected is not a valid choice because the format must be 'plain_txt'.
+      // The value selected is not a valid choice because the format must be
+      // 'plain_txt'.
       $this->assertResponse(422);
       $this->assertFalse(EntityTest::loadMultiple(), 'No entity has been created in the database.');
 
@@ -153,7 +155,8 @@ public function testCreateEntityTest() {
       // Try to send no data at all, which does not make sense on POST requests.
       $this->assertCreateEntityNoData($entity_type);
 
-      // Try to send invalid data to trigger the entity validation constraints. Send a UUID that is too long.
+      // Try to send invalid data to trigger the entity validation constraints.
+      // Send a UUID that is too long.
       $this->assertCreateEntityInvalidSerialized($entity, $entity_type);
 
       // Try to create an entity without proper permissions.
@@ -170,8 +173,8 @@ public function testCreateNode() {
     $entity_type = 'node';
     // Enables the REST service for 'node' entity type.
     $this->enableService('entity:' . $entity_type, 'POST');
-    // Create two accounts that have the required permissions to create resources.
-    // The second one has administrative permissions.
+    // Create two accounts that have the required permissions to create
+    // resources. The second one has administrative permissions.
     $accounts = $this->createAccountPerEntity($entity_type);
 
     // Verify create requests per user.
@@ -181,7 +184,8 @@ public function testCreateNode() {
       $entity_values = $this->entityValues($entity_type);
       $entity = Node::create($entity_values);
 
-      // Verify that user cannot create content when trying to write to fields where it is not possible.
+      // Verify that user cannot create content when trying to write to fields
+      // where it is not possible.
       if (!$account->hasPermission('administer nodes')) {
         $serialized = $this->serializer->serialize($entity, $this->defaultFormat, ['account' => $account]);
         $this->httpRequest('entity/' . $entity_type, 'POST', $serialized, $this->defaultMimeType);
@@ -200,7 +204,8 @@ public function testCreateNode() {
       // Create the entity over the REST API.
       $this->assertCreateEntityOverRestApi($entity_type, $serialized);
 
-      // Get the new entity ID from the location header and try to read it from the database.
+      // Get the new entity ID from the location header and try to read it from
+      // the database.
       $this->assertReadEntityIdFromHeaderAndDb($entity_type, $entity, $entity_values);
 
       // Try to send invalid data that cannot be correctly deserialized.
@@ -226,8 +231,8 @@ public function testCreateUser() {
     $entity_type = 'user';
     // Enables the REST service for 'user' entity type.
     $this->enableService('entity:' . $entity_type, 'POST');
-    // Create two accounts that have the required permissions to create resources.
-    // The second one has administrative permissions.
+    // Create two accounts that have the required permissions to create
+    // resources. The second one has administrative permissions.
     $accounts = $this->createAccountPerEntity($entity_type);
 
     foreach ($accounts as $key => $account) {
@@ -251,7 +256,8 @@ public function testCreateUser() {
       // Create the entity over the REST API.
       $this->assertCreateEntityOverRestApi($entity_type, $serialized);
 
-      // Get the new entity ID from the location header and try to read it from the database.
+      // Get the new entity ID from the location header and try to read it from
+      // the database.
       $this->assertReadEntityIdFromHeaderAndDb($entity_type, $entity, $entity_values);
 
       // Try to send invalid data that cannot be correctly deserialized.
@@ -268,8 +274,8 @@ public function testCreateUser() {
   }
 
   /**
-   * Creates user accounts that have the required permissions to create resources via the REST API.
-   * The second one has administrative permissions.
+   * Creates user accounts that have the required permissions to create
+   * resources via the REST API. The second one has administrative permissions.
    *
    * @param string $entity_type
    *   Entity type needed to apply user permissions.
@@ -307,7 +313,8 @@ public function assertCreateEntityOverRestApi($entity_type, $serialized = NULL)
   }
 
   /**
-   * Get the new entity ID from the location header and try to read it from the database.
+   * Gets the new entity ID from the location header and tries to read it from
+   * the database.
    *
    * @param string $entity_type
    *   Entity type we need to load the entity from DB.