Refactor unit tests to have one logical assertion per method.

- Support executing a single unit tests using __only prefix
- Hook in Email classes to main code, even if they're unused


git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1373 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/AttrTransform/NameTest.php

@@ -11,12 +11,18 @@ class HTMLPurifier_AttrTransform_NameTest extends HTMLPurifier_AttrTransformHarn
         $this->obj = new HTMLPurifier_AttrTransform_Name();
     }
     
-    function test() {
+    function testEmpty() {
         $this->assertResult( array() );
+    }
+    
+    function testTransformNameToID() {
         $this->assertResult(
             array('name' => 'free'),
             array('id' => 'free')
         );
+    }
+    
+    function testExistingIDOverridesName() {
         $this->assertResult(
             array('name' => 'tryit', 'id' => 'tobad'),
             array('id' => 'tobad')