- Gracefully error out of obscure bug involving non-static autoloaders

- Test multiple autoloaders
- Remove local URL test; doesn't work for other people

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1565 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/PHPT/loading/error-auto-with-spl-nonstatic-autoload.phpt

@@ -0,0 +1,29 @@
+--TEST--
+Error when registering autoload with non-static autoload already on SPL stack
+--SKIPIF--
+<?php
+if (!function_exists('spl_autoload_register')) {
+    echo "skip - spl_autoload_register() not available";
+}
+--FILE--
+<?php
+class NotStatic
+{
+    public function autoload($class) {
+        echo "Autoloading... $class" . PHP_EOL;
+        eval("class $class {}");
+    }
+}
+
+$obj = new NotStatic();
+spl_autoload_register(array($obj, 'autoload'));
+
+try {
+    require '../library/HTMLPurifier.auto.php';
+} catch (Exception $e) {
+    echo 'Caught error gracefully';
+    assert('strpos($e->getMessage(), "44144") !== false');
+}
+
+--EXPECT--
+Caught error gracefully