ISTWCMS-3812: Test that BigPipe is not enabled

tests/src/Functional/UwWcmsBasicTest.php

@@ -37,6 +37,9 @@ class UwWcmsBasicTest extends BrowserTestBase {
     $this->drupalGet('');
     $this->assertSession()->statusCodeEquals(200);
     $this->assertSession()->pageTextContains('200 University Avenue West');
+
+    $big_pipe_enabled = \Drupal::moduleHandler()->moduleExists('big_pipe');
+    $this->assertFalse($big_pipe_enabled, 'BigPipe module is not enabled.');
   }
 
 }