diff --git a/core/tests/Drupal/FunctionalTests/Routing/CaseInsensitivePathTest.php b/core/tests/Drupal/FunctionalTests/Routing/CaseInsensitivePathTest.php
new file mode 100644
index 0000000..83c58b5
--- /dev/null
+++ b/core/tests/Drupal/FunctionalTests/Routing/CaseInsensitivePathTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Drupal\FunctionalTests\Routing;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests url generation and routing for route paths with encoded characters.
+ *
+ * @group routing
+ */
+class CaseInsensitivePathTest extends BrowserTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['system', 'views', 'node'];
+
+  public function testInternalPath() {
+    $this->drupalGet('user/login');
+    $this->assertEquals($this->getSession()->getStatusCode(), 200);
+    $this->drupalGet('User/Login');
+    $this->assertEquals($this->getSession()->getStatusCode(), 200);
+  }
+
+  public function testViewsPath() {
+    $admin = $this->drupalCreateUser(['access administration pages', 'administer nodes', 'access content overview']);
+    $this->drupalLogin($admin);
+
+    $this->drupalGet('admin/content');
+    $this->assertEquals($this->getSession()->getStatusCode(), 200);
+    $this->drupalGet('Admin/Content');
+    $this->assertEquals($this->getSession()->getStatusCode(), 200);
+  }
+
+}