diff --git a/core/tests/Drupal/Tests/Core/Config/ExtensionInstallStorageTest.php b/core/tests/Drupal/Tests/Core/Config/ExtensionInstallStorageTest.php
new file mode 100644
index 0000000000..65762f91b9
--- /dev/null
+++ b/core/tests/Drupal/Tests/Core/Config/ExtensionInstallStorageTest.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Drupal\Tests\Core\Config;
+
+use Drupal\Core\Config\ExtensionInstallStorage;
+use Drupal\Core\Config\StorageInterface;
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\Tests\Traits\ExpectDeprecationTrait;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * Tests the Config.
+ *
+ * @coversDefaultClass \Drupal\Core\Config\ExtensionInstallStorage
+ *
+ * @group Config
+ *
+ * @see \Drupal\Core\Config\Config
+ */
+class ExtensionInstallStorageTest extends UnitTestCase {
+  use ExpectDeprecationTrait;
+
+  /**
+   * @covers ::__construct
+   * @group legacy
+   * @dataProvider providerTestProfileDeprecation
+   */
+  public function testProfileDeprecation($profile, $container_profile, $deprecation = FALSE) {
+    if ($deprecation) {
+      $this->expectedDeprecations(['Install profile will be a mandatory parameter in Drupal 9.0.']);
+    }
+    $config_storage = $this->prophesize(StorageInterface::class)->reveal();
+    $container = new ContainerBuilder();
+    $container->setParameter('install_profile', $container_profile);
+    \Drupal::setContainer($container);
+    new ExtensionInstallStorage($config_storage, ExtensionInstallStorage::CONFIG_INSTALL_DIRECTORY, ExtensionInstallStorage::DEFAULT_COLLECTION, TRUE, $profile);
+    $this->addToAssertionCount(1);
+  }
+
+  /**
+   * Data provider for ::testProfileDeprecation
+   */
+  public function providerTestProfileDeprecation() {
+    return [
+      'both null' => [NULL, NULL],
+      'constructor null' => [NULL, 'test', TRUE],
+      'constructor null' => ['test', 'test'],
+    ];
+  }
+
+}