tests/src/Functional/ClaroTest.php | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/src/Functional/ClaroTest.php b/tests/src/Functional/ClaroTest.php
index 7431362..4edebf1 100644
--- a/tests/src/Functional/ClaroTest.php
+++ b/tests/src/Functional/ClaroTest.php
@@ -56,7 +56,20 @@ class ClaroTest extends BrowserTestBase {
 
     $this->drupalGet('admin/modules');
     $this->assertSession()->elementExists('css', '#block-claro-help');
+  }
+
+  /**
+   * Tests that the Claro theme can be uninstalled, despite being experimental.
+   *
+   * @todo Remove in https://www.drupal.org/project/drupal/issues/3066007
+   */
+  public function testIsUninstallable() {
+    $this->drupalLogin($this->drupalCreateUser(['access administration pages', 'administer themes']));
 
+    $this->drupalGet('admin/appearance');
+    $this->cssSelect('a[title="Install Seven as default theme"]')[0]->click();
+    $this->cssSelect('a[title="Uninstall Claro theme"]')[0]->click();
+    $this->assertText('The Claro theme has been uninstalled.');
   }
 
 }