store enabled exts in a config file, rather than moving directories around

lib/simpletest/compatibility.php

@@ -0,0 +1,166 @@
+<?php
+/**
+ *  base include file for SimpleTest
+ *  @package    SimpleTest
+ *  @version    $Id: compatibility.php 1900 2009-07-29 11:44:37Z lastcraft $
+ */
+
+/**
+ *  Static methods for compatibility between different
+ *  PHP versions.
+ *  @package    SimpleTest
+ */
+class SimpleTestCompatibility {
+
+    /**
+     *    Creates a copy whether in PHP5 or PHP4.
+     *    @param object $object     Thing to copy.
+     *    @return object            A copy.
+     *    @access public
+     */
+    static function copy($object) {
+        if (version_compare(phpversion(), '5') >= 0) {
+            eval('$copy = clone $object;');
+            return $copy;
+        }
+        return $object;
+    }
+
+    /**
+     *    Identity test. Drops back to equality + types for PHP5
+     *    objects as the === operator counts as the
+     *    stronger reference constraint.
+     *    @param mixed $first    Test subject.
+     *    @param mixed $second   Comparison object.
+     *    @return boolean        True if identical.
+     *    @access public
+     */
+    static function isIdentical($first, $second) {
+        if (version_compare(phpversion(), '5') >= 0) {
+            return SimpleTestCompatibility::isIdenticalType($first, $second);
+        }
+        if ($first != $second) {
+            return false;
+        }
+        return ($first === $second);
+    }
+
+    /**
+     *    Recursive type test.
+     *    @param mixed $first    Test subject.
+     *    @param mixed $second   Comparison object.
+     *    @return boolean        True if same type.
+     *    @access private
+     */
+    protected static function isIdenticalType($first, $second) {
+        if (gettype($first) != gettype($second)) {
+            return false;
+        }
+        if (is_object($first) && is_object($second)) {
+            if (get_class($first) != get_class($second)) {
+                return false;
+            }
+            return SimpleTestCompatibility::isArrayOfIdenticalTypes(
+                    (array) $first,
+                    (array) $second);
+        }
+        if (is_array($first) && is_array($second)) {
+            return SimpleTestCompatibility::isArrayOfIdenticalTypes($first, $second);
+        }
+        if ($first !== $second) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     *    Recursive type test for each element of an array.
+     *    @param mixed $first    Test subject.
+     *    @param mixed $second   Comparison object.
+     *    @return boolean        True if identical.
+     *    @access private
+     */
+    protected static function isArrayOfIdenticalTypes($first, $second) {
+        if (array_keys($first) != array_keys($second)) {
+            return false;
+        }
+        foreach (array_keys($first) as $key) {
+            $is_identical = SimpleTestCompatibility::isIdenticalType(
+                    $first[$key],
+                    $second[$key]);
+            if (! $is_identical) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     *    Test for two variables being aliases.
+     *    @param mixed $first    Test subject.
+     *    @param mixed $second   Comparison object.
+     *    @return boolean        True if same.
+     *    @access public
+     */
+    static function isReference(&$first, &$second) {
+        if (version_compare(phpversion(), '5', '>=') && is_object($first)) {
+            return ($first === $second);
+        }
+        if (is_object($first) && is_object($second)) {
+            $id = uniqid("test");
+            $first->$id = true;
+            $is_ref = isset($second->$id);
+            unset($first->$id);
+            return $is_ref;
+        }
+        $temp = $first;
+        $first = uniqid("test");
+        $is_ref = ($first === $second);
+        $first = $temp;
+        return $is_ref;
+    }
+
+    /**
+     *    Test to see if an object is a member of a
+     *    class hiearchy.
+     *    @param object $object    Object to test.
+     *    @param string $class     Root name of hiearchy.
+     *    @return boolean         True if class in hiearchy.
+     *    @access public
+     */
+    static function isA($object, $class) {
+        if (version_compare(phpversion(), '5') >= 0) {
+            if (! class_exists($class, false)) {
+                if (function_exists('interface_exists')) {
+                    if (! interface_exists($class, false))  {
+                        return false;
+                    }
+                }
+            }
+            eval("\$is_a = \$object instanceof $class;");
+            return $is_a;
+        }
+        if (function_exists('is_a')) {
+            return is_a($object, $class);
+        }
+        return ((strtolower($class) == get_class($object))
+                or (is_subclass_of($object, $class)));
+    }
+
+    /**
+     *    Sets a socket timeout for each chunk.
+     *    @param resource $handle    Socket handle.
+     *    @param integer $timeout    Limit in seconds.
+     *    @access public
+     */
+    static function setTimeout($handle, $timeout) {
+        if (function_exists('stream_set_timeout')) {
+            stream_set_timeout($handle, $timeout, 0);
+        } elseif (function_exists('socket_set_timeout')) {
+            socket_set_timeout($handle, $timeout, 0);
+        } elseif (function_exists('set_socket_timeout')) {
+            set_socket_timeout($handle, $timeout, 0);
+        }
+    }
+}
+?>