Brad Jones
--- a/core/tests/Drupal/KernelTests/Core/Entity/EntityKernelTestBaseTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Entity/EntityKernelTestBaseTest.php
    $this->assertSame($account->id(), $current_user->id());
  }

+  /**
+   * Ensure that calls to enable or disable modules result in our getting
--- a/core/tests/Drupal/KernelTests/Core/Entity/EntityKernelTestBaseTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Entity/EntityKernelTestBaseTest.php
    $this->assertSame($account->id(), $current_user->id());
  }

+  /**
+   * Ensure references to DI objects are kept in sync.
+   */
+  public function testEnsureContainerIntegrity() {
+    $storage = new \SplObjectStorage();
+    $this->disableModules(['user']);
+    $storage->attach($this->entityTypeManager);
+    $this->assertTrue($storage->contains(\Drupal::entityTypeManager()));