diff --git a/core/tests/Drupal/KernelTests/Core/Database/MergeTest.php b/core/tests/Drupal/KernelTests/Core/Database/MergeTest.php
index 9a5688c..f76fd7c 100644
--- a/core/tests/Drupal/KernelTests/Core/Database/MergeTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Database/MergeTest.php
@@ -9,11 +9,14 @@
  * Tests the MERGE query builder.
  *
  * @group Database
+ * @group legacy
  */
 class MergeTest extends DatabaseTestBase {
 
   /**
    * Confirms that we can merge-insert a record successfully.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeInsert() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -39,6 +42,8 @@ public function testMergeInsert() {
 
   /**
    * Confirms that we can merge-update a record successfully.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeUpdate() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -67,6 +72,8 @@ public function testMergeUpdate() {
    *
    * This test varies from the previous test because it manually defines which
    * fields are inserted, and which fields are updated.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeUpdateExcept() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -88,6 +95,8 @@ public function testMergeUpdateExcept() {
 
   /**
    * Confirms that we can merge-update a record, with alternate replacement.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeUpdateExplicit() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -114,6 +123,8 @@ public function testMergeUpdateExplicit() {
 
   /**
    * Confirms that we can merge-update a record successfully, with expressions.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeUpdateExpression() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -143,6 +154,8 @@ public function testMergeUpdateExpression() {
 
   /**
    * Tests that we can merge-insert without any update fields.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeInsertWithoutUpdate() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -162,6 +175,8 @@ public function testMergeInsertWithoutUpdate() {
 
   /**
    * Confirms that we can merge-update without any update fields.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testMergeUpdateWithoutUpdate() {
     $num_records_before = db_query('SELECT COUNT(*) FROM {test_people}')->fetchField();
@@ -194,6 +209,8 @@ public function testMergeUpdateWithoutUpdate() {
 
   /**
    * Tests that an invalid merge query throws an exception.
+   *
+   * @expectedDeprecation Deprecated as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call merge() on it. For example, $injected_database->merge($table, $options);
    */
   public function testInvalidMerge() {
     try {