assertNotEmpty($html, 'wiki:syntax must render to non-empty HTML'); // DOMWrap needs a single root; wrap in a container. $doc = (new Document())->html('

' . $html . '

'); // Top-level heading from the page source: "====== Formatting Syntax ======" $h1 = $doc->find('h1'); $this->assertSame(1, $h1->count(), 'page must have exactly one h1'); $this->assertSame('Formatting Syntax', trim($h1->text())); // Headers of various levels — page has dozens of sections. $this->assertGreaterThan(10, $doc->find('h2')->count(), 'page must have many h2 sections'); $this->assertGreaterThan(0, $doc->find('h3')->count()); $this->assertGreaterThan(0, $doc->find('h4')->count()); // Section edit markers — verifies finalize/Block ran. $this->assertGreaterThan( 5, substr_count($html, '