[1.2.0] Commit initial implementation of Context object, we will be migrating all systems over to it next commit.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@482 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/ContextTest.php

@@ -0,0 +1,58 @@
+<?php
+
+require_once 'HTMLPurifier/Context.php';
+
+// mocks
+require_once 'HTMLPurifier/IDAccumulator.php';
+
+class HTMLPurifier_ContextTest extends UnitTestCase
+{
+    
+    var $context;
+    
+    function setUp() {
+        $this->context = new HTMLPurifier_Context();
+    }
+    
+    function testStandardUsage() {
+        
+        generate_mock_once('HTMLPurifier_IDAccumulator');
+        
+        $accumulator =& new HTMLPurifier_IDAccumulatorMock($this);
+        $this->context->register('IDAccumulator', $accumulator);
+        // ...
+        $accumulator_2 =& $this->context->get('IDAccumulator');
+        $this->assertReference($accumulator, $accumulator_2);
+        
+        $this->context->destroy('IDAccumulator');
+        $accumulator_3 =& $this->context->get('IDAccumulator');
+        $this->assertError('Attempted to retrieve non-existent variable');
+        $this->assertNull($accumulator_3);
+        $this->swallowErrors();
+        
+        $this->context->destroy('IDAccumulator');
+        $this->assertError('Attempted to destroy non-existent variable');
+        $this->swallowErrors();
+        
+    }
+    
+    function testReRegister() {
+        
+        $var = true;
+        $this->context->register('OnceOnly', $var);
+        $this->assertNoErrors();
+        
+        $this->context->register('OnceOnly', $var);
+        $this->assertError('Name collision, cannot re-register');
+        $this->swallowErrors();
+        
+        // destroy it, now registration is okay
+        $this->context->destroy('OnceOnly');
+        $this->context->register('OnceOnly', $var);
+        $this->assertNoErrors();
+        
+    }
+    
+}
+
+?>