getMessage() . "\n");
}
}
private function get(string $page): \CodeIgniter\Test\TestResponse
{
return $this->call('get', $page);
}
public function testToolPageRendersFullSeoContract(): void
{
$response = $this->get('/youtube-to-mp3');
$response->assertStatus(200);
$html = (string) $response->getBody();
// canonical, title, description, OG
$this->assertMatchesRegularExpression('##', $html);
$this->assertMatchesRegularExpression('/[^<]+<\/title>/', $html);
$this->assertStringContainsString('name="description"', $html);
$this->assertStringContainsString('property="og:title"', $html);
$this->assertStringContainsString('name="twitter:card" content="summary_large_image"', $html);
// structured data: FAQPage + BreadcrumbList + WebApplication
$jsonLd = '';
if (preg_match('/<script type="application\/ld\+json">(.*?)<\/script>/s', $html, $m)) {
$jsonLd = $m[1];
}
$this->assertNotSame('', $jsonLd, 'JSON-LD block missing');
foreach (['BreadcrumbList', 'WebApplication', 'FAQPage'] as $type) {
$this->assertStringContainsString('"' . $type . '"', $jsonLd, "{$type} missing from JSON-LD");
}
// content in first response: H1, how-to steps, FAQ questions visible
$this->assertStringContainsString('<h1>', $html);
$this->assertStringContainsString('Frequently asked questions', $html);
$this->assertStringContainsString('Related tools', $html);
$this->assertStringContainsString('breadcrumbs', $html);
// robots meta allows indexing
$this->assertStringContainsString('content="index, follow', $html);
}
public function testCategoryAndHomepageAreIndexable(): void
{
foreach (['/', '/youtube-tools', '/tools'] as $page) {
$html = (string) $this->get($page)->getBody();
$this->assertStringContainsString('rel="canonical"', $html, "canonical missing on {$page}");
$this->assertStringContainsString('index, follow', $html, "robots meta wrong on {$page}");
}
}
public function testSearchIsNoindexed(): void
{
$html = (string) $this->get('/search?q=mp3')->getBody();
$this->assertStringContainsString('noindex', $html);
}
public function testSitemapsContainOnlyCanonicalUrls(): void
{
$index = (string) $this->get('/sitemap.xml')->getBody();
$this->assertStringContainsString('sitemapindex', $index);
$this->assertStringContainsString('sitemap-tools-1.xml', $index);
$this->assertStringContainsString('sitemap-guides.xml', $index);
$tools = (string) $this->get('/sitemap-tools-1.xml')->getBody();
$this->assertStringContainsString('/youtube-to-mp3</loc>', $tools);
$this->assertDoesNotMatchRegularExpression('#<loc>[^<]*/(api/|admin|download/|search\?)#', $tools, 'Non-indexable URL leaked into sitemap');
$categories = (string) $this->get('/sitemap-categories.xml')->getBody();
$this->assertStringContainsString('/youtube-tools</loc>', $categories);
}
public function testRobotsTxtBlocksProcessingEndpoints(): void
{
$body = (string) $this->get('/robots.txt')->getBody();
$this->assertStringContainsString('Disallow: /api/', $body);
$this->assertStringContainsString('Disallow: /download/', $body);
$this->assertStringContainsString('Disallow: /admin', $body);
$this->assertStringContainsString('Sitemap:', $body);
}
public function testUppercaseUrl301RedirectsToCanonical(): void
{
$this->get('/YouTube-To-MP3')->assertStatus(301);
}
public function testUnknownSlugReturnsUseful404(): void
{
$result = $this->get('/this-tool-does-not-exist');
$result->assertStatus(404);
$html = (string) $result->getBody();
$this->assertStringContainsString('Tool not found', $html);
$this->assertStringContainsString('Popular tools', $html, '404 page must link popular tools');
}
}