--- /dev/null
+<?php
+
+namespace Drupal\Tests\workspaces\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests uninstalling the Workspaces module.
+ *
+ * @group workspaces
+ */
+class WorkspacesUninstallTest extends BrowserTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected $profile = 'standard';
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['workspaces'];
+
+ /**
+ * Tests deleting workspace entities and uninstalling Workspaces module.
+ */
+ public function testUninstallingWorkspace() {
+ $this->drupalLogin($this->rootUser);
+ $this->drupalGet('/admin/modules/uninstall');
+ $session = $this->assertSession();
+ $session->linkExists('Remove workspaces');
+ $this->clickLink('Remove workspaces');
+ $session->pageTextContains('Are you sure you want to delete all workspaces?');
+ $this->drupalPostForm('/admin/modules/uninstall/entity/workspace', [], 'Delete all workspaces');
+ $this->drupalPostForm('admin/modules/uninstall', ['uninstall[workspaces]' => TRUE], 'Uninstall');
+ $this->drupalPostForm(NULL, [], 'Uninstall');
+ $session->pageTextContains('The selected modules have been uninstalled.');
+ $session->pageTextNotContains('Workspaces');
+ }
+
+}