diff --git a/core/tests/Drupal/Tests/Core/Render/Element/RadioTest.php b/core/tests/Drupal/Tests/Core/Render/Element/RadioTest.php
new file mode 100644
index 0000000..7381cfa
--- /dev/null
+++ b/core/tests/Drupal/Tests/Core/Render/Element/RadioTest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Drupal\Tests\Core\Render\Element;
+
+use Drupal\Core\Render\Element\Radio;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * @coversDefaultClass \Drupal\Core\Render\Element\Radio
+ * @group Render
+ */
+class RadioTest extends UnitTestCase {
+
+  /**
+   * @covers ::preRenderRadio
+   */
+  public function testPreRenderRadio() {
+    $element = [
+      '#return_value' => 0,
+      '#value' => 'All',
+      '#attributes' => [],
+    ];
+
+    $element = Radio::preRenderRadio($element);
+
+    $this->assertArrayNotHasKey('checked', $element['#attributes']);
+  }
+
+}