[ErrorHandler] Fix strpos error when trying to call a method without a name

Author: Jérôme Deuchnord

FatalErrorHandler/UndefinedMethodFatalErrorHandler.php

@@ -40,7 +40,7 @@ public function handleError(array $error, FatalErrorException $exception)
 
  $message = sprintf('Attempted to call an undefined method named "%s" of class "%s".', $methodName, $className);
 
- if (!class_exists($className) || null === $methods = get_class_methods($className)) {
+ if ('' === $methodName || !class_exists($className) || null === $methods = get_class_methods($className)) {
  // failed to get the class or its methods on which an unknown method was called (for example on an anonymous class)
  return new UndefinedMethodException($message, $exception);
  }

Tests/FatalErrorHandler/UndefinedMethodFatalErrorHandlerTest.php

@@ -48,6 +48,15 @@ public function provideUndefinedMethodData()
  ],
  'Attempted to call an undefined method named "what" of class "SplObjectStorage".',
  ],
+ [
+ [
+ 'type' => 1,
+ 'line' => 12,
+ 'file' => 'foo.php',
+ 'message' => 'Call to undefined method SplObjectStorage::()',
+ ],
+ 'Attempted to call an undefined method named "" of class "SplObjectStorage".',
+ ],
  [
  [
  'type' => 1,