class PhpRequirementTest

class PhpRequirementTest extends BrowserTestBase {
    use RequirementsPageTrait;
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $admin_user = $this->drupalCreateUser([
            'administer site configuration',
            'access site reports',
        ]);
        $this->drupalLogin($admin_user);
        // By default, Drupal installation (and BrowserTestBase) do not configure
        // trusted host patterns, which leads to an error on the status report.
        // Configure them so that the site is properly configured and so that we
        // can cleanly test the errors related to PHP versions.
        $settings['settings']['trusted_host_patterns'] = (object) [
            'value' => [
                '^' . preg_quote(\Drupal::request()->getHost()) . '$',
            ],
            'required' => TRUE,
        ];
        $this->writeSettings($settings);
    }
    
    /**
     * Tests status report messages regarding the PHP version.
     */
    public function testStatusPage() {
        $minimum_php_version = PhpRequirements::getMinimumSupportedPhp();
        // Go to Administration.
        $this->drupalGet('admin/reports/status');
        $this->assertSession()
            ->statusCodeEquals(200);
        $phpversion = phpversion();
        // Verify that the PHP version is shown on the page.
        $this->assertSession()
            ->pageTextContains($phpversion);
        // Verify that an error is displayed about the PHP version if it is below
        // the minimum supported PHP.
        if (version_compare($phpversion, $minimum_php_version) < 0) {
            $this->assertErrorSummaries([
                'PHP',
            ]);
            $this->assertSession()
                ->pageTextContains('Your PHP installation is too old. Drupal requires at least PHP ' . $minimum_php_version);
        }
        else {
            $this->assertSession()
                ->pageTextNotContains('Your PHP installation is too old. Drupal requires at least PHP ' . $minimum_php_version);
            $this->assertSession()
                ->pageTextNotContains('Errors found');
        }
        // There should be an informational message if the PHP version is below the
        // recommended version.
        if (version_compare($phpversion, \Drupal::RECOMMENDED_PHP) < 0) {
            // If running a PHP version affected by a known OPcache bug, warn about
            // that.
            // @todo Remove this when \Drupal::MINIMUM_PHP is at least 8.1.6 in
            //   https://www.drupal.org/i/3305726.
            if (version_compare($phpversion, '8.1.0', 'ge') && version_compare($phpversion, '8.1.6', 'lt')) {
                $this->assertSession()
                    ->pageTextContains("PHP {$phpversion} has an OPcache bug that can cause fatal errors with class autoloading. This can be fixed by upgrading to PHP 8.1.6 or later.");
                $this->assertSession()
                    ->linkExists('an OPcache bug that can cause fatal errors with class autoloading');
            }
            else {
                $this->assertSession()
                    ->pageTextContains('It is recommended to upgrade to PHP version ' . \Drupal::RECOMMENDED_PHP . ' or higher');
            }
        }
        else {
            $this->assertSession()
                ->pageTextNotContains('It is recommended to upgrade to PHP version ' . \Drupal::RECOMMENDED_PHP . ' or higher');
        }
    }

}