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diff --git a/web/core/tests/Drupal/Tests/Core/Cache/DatabaseBackendFactoryTest.php b/web/core/tests/Drupal/Tests/Core/Cache/DatabaseBackendFactoryTest.php
new file mode 100644
index 000000000..9d5ac4bdf
--- /dev/null
+++ b/web/core/tests/Drupal/Tests/Core/Cache/DatabaseBackendFactoryTest.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Drupal\Tests\Core\Cache;
+
+use Drupal\Core\Cache\CacheTagsChecksumInterface;
+use Drupal\Core\Cache\DatabaseBackend;
+use Drupal\Core\Cache\DatabaseBackendFactory;
+use Drupal\Core\Database\Connection;
+use Drupal\Core\Site\Settings;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * @coversDefaultClass \Drupal\Core\Cache\DatabaseBackendFactory
+ * @group Cache
+ */
+class DatabaseBackendFactoryTest extends UnitTestCase {
+
+  /**
+   * @covers ::__construct
+   * @covers ::get
+   * @dataProvider getProvider
+   */
+  public function testGet(array $settings, $expected_max_rows_foo, $expected_max_rows_bar) {
+    $database_backend_factory = new DatabaseBackendFactory(
+      $this->prophesize(Connection::class)->reveal(),
+      $this->prophesize(CacheTagsChecksumInterface::class)->reveal(),
+      new Settings($settings)
+    );
+
+    $this->assertSame($expected_max_rows_foo, $database_backend_factory->get('foo')->getMaxRows());
+    $this->assertSame($expected_max_rows_bar, $database_backend_factory->get('bar')->getMaxRows());
+  }
+
+  public function getProvider() {
+    return [
+      'default' => [
+        [],
+        DatabaseBackend::DEFAULT_MAX_ROWS,
+        DatabaseBackend::DEFAULT_MAX_ROWS,
+      ],
+      'default overridden' => [
+        [
+          'database_cache_max_rows' => [
+            'default' => 99,
+          ],
+        ],
+        99,
+        99,
+      ],
+      'default + foo bin overridden' => [
+        [
+          'database_cache_max_rows' => [
+            'bins' => [
+              'foo' => 13,
+            ],
+          ],
+        ],
+        13,
+        DatabaseBackend::DEFAULT_MAX_ROWS,
+      ],
+      'default + bar bin overridden' => [
+        [
+          'database_cache_max_rows' => [
+            'bins' => [
+              'bar' => 13,
+            ],
+          ],
+        ],
+        DatabaseBackend::DEFAULT_MAX_ROWS,
+        13,
+      ],
+      'default overridden + bar bin overridden' => [
+        [
+          'database_cache_max_rows' => [
+            'default' => 99,
+            'bins' => [
+              'bar' => 13,
+            ],
+          ],
+        ],
+        99,
+        13,
+      ],
+      'default + both bins overridden' => [
+        [
+          'database_cache_max_rows' => [
+            'bins' => [
+              'foo' => 13,
+              'bar' => 31,
+            ],
+          ],
+        ],
+        13,
+        31,
+      ],
+      'default overridden + both bins overridden' => [
+        [
+          'database_cache_max_rows' => [
+            'default' => 99,
+            'bins' => [
+              'foo' => 13,
+              'bar' => 31,
+            ],
+          ],
+        ],
+        13,
+        31,
+      ],
+    ];
+  }
+
+}