More SQL command (drop table, drop database)

delete, select & insert upgraded 
More utility function (node to array, arrayToNode)
XMLDB special move command
PHP Unit Test

simpletest/test/unit_tester_test.php

@@ -0,0 +1,55 @@
+<?php
+// $Id: unit_tester_test.php 1509 2007-05-08 22:11:49Z lastcraft $
+require_once(dirname(__FILE__) . '/../autorun.php');
+
+class ReferenceForTesting {
+}
+
+class TestOfUnitTester extends UnitTestCase {
+    
+    function testAssertTrueReturnsAssertionAsBoolean() {
+        $this->assertTrue($this->assertTrue(true));
+    }
+    
+    function testAssertFalseReturnsAssertionAsBoolean() {
+        $this->assertTrue($this->assertFalse(false));
+    }
+    
+    function testAssertEqualReturnsAssertionAsBoolean() {
+        $this->assertTrue($this->assertEqual(5, 5));
+    }
+    
+    function testAssertIdenticalReturnsAssertionAsBoolean() {
+        $this->assertTrue($this->assertIdentical(5, 5));
+    }
+    
+    function testCoreAssertionsDoNotThrowErrors() {
+        $this->assertIsA($this, 'UnitTestCase');
+        $this->assertNotA($this, 'WebTestCase');
+    }
+    
+    function testReferenceAssertionOnObjects() {
+        $a = &new ReferenceForTesting();
+        $b = &$a;
+        $this->assertReference($a, $b);
+    }
+    
+    function testReferenceAssertionOnScalars() {
+        $a = 25;
+        $b = &$a;
+        $this->assertReference($a, $b);
+    }
+    
+    function testCloneOnObjects() {
+        $a = &new ReferenceForTesting();
+        $b = &new ReferenceForTesting();
+        $this->assertClone($a, $b);
+    }
+    
+    function testCloneOnScalars() {
+        $a = 25;
+        $b = 25;
+        $this->assertClone($a, $b);
+    }
+}
+?>