[1.6.0] Implement width/height attribute transforms with Length.php

- Also, enabled 'height' CSS attribute

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@922 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/AttrTransform/LengthTest.php

@@ -0,0 +1,37 @@
+<?php
+
+require_once 'HTMLPurifier/AttrTransform/Length.php';
+require_once 'HTMLPurifier/AttrTransformHarness.php';
+
+class HTMLPurifier_AttrTransform_LengthTest extends HTMLPurifier_AttrTransformHarness
+{
+    
+    function setUp() {
+        parent::setUp();
+        $this->obj = new HTMLPurifier_AttrTransform_Length('width');
+    }
+    
+    function test() {
+        $this->assertResult( array() );
+        $this->assertResult(
+            array('width' => '10'),
+            array('style' => 'width:10px;')
+        );
+        $this->assertResult(
+            array('width' => '10%'),
+            array('style' => 'width:10%;')
+        );
+        $this->assertResult(
+            array('width' => '10%', 'style' => 'font-weight:bold'),
+            array('style' => 'width:10%;font-weight:bold')
+        );
+        // this behavior might change
+        $this->assertResult(
+            array('width' => 'asdf'),
+            array('style' => 'width:asdf;')
+        );
+    }
+    
+}
+
+?>