Sniffs not loaded when one-standard directories are being registered in installed_paths

src/Util/Standards.php

@@ -255,16 +255,26 @@ public static function isInstalledStandard($standard)
  * CodeSniffer/Standards directory. Valid coding standards
  * include a ruleset.xml file.
  *
- * @param string $standard The name of the coding standard.
+ * @param string|\SimpleXMLElement $standard The name of the coding standard.
  *
  * @return string|null
  */
  public static function getInstalledStandardPath($standard)
  {
  $installedPaths = self::getInstalledStandardPaths();
+ $standard = (string) $standard;
+
+ if (strpos($standard, '.') !== false) {
+ return null;
+ }
+
  foreach ($installedPaths as $installedPath) {
  $standardPath = $installedPath.DIRECTORY_SEPARATOR.$standard;
- if (file_exists($standardPath) === false && basename($installedPath) === $standard) {
+ if (file_exists($standardPath) === false) {
+ if (basename($installedPath) !== (string) $standard) {
+ continue;
+ }
+
  $standardPath = $installedPath;
  }
 
@@ -278,7 +288,7 @@ public static function getInstalledStandardPath($standard)
  return $path;
  }
  }
- }
+ }//end foreach
 
  return null;