Issue #578400 by aaronschachter, melsi, Gábor Hojtsy, valthebald, idflood,...

Issue #578400 by aaronschachter, melsi, Gábor Hojtsy, valthebald, idflood, sign, Damien Tournoud: Fixed Display the page title, even if 0.

core/modules/node/src/Tests/NodeTitleTest.php

@@ -66,5 +66,17 @@ function testNodeTitle() {
     // Test node title is clickable on teaser list (/node).
     $this->drupalGet('node');
     $this->clickLink($node->label());
+
+    // Test edge case where node title is set to 0.
+    $settings = array(
+      'title' => 0,
+    );
+    $node = $this->drupalCreateNode($settings);
+    // Test that 0 appears as <title>.
+    $this->drupalGet('node/' . $node->id());
+    $this->assertTitle(0 . ' | Drupal', 'Page title is equal to 0.', 'Node');
+    // Test that 0 appears in the template <h1>.
+    $xpath = '//h1';
+    $this->assertEqual(current($this->xpath($xpath)), 0, 'Node title is displayed as 0.', 'Node');
   }
 }