added deprecation notices for deprecated tests

lib/Twig/Extension/Core.php

@@ -233,11 +233,11 @@ class Twig_Extension_Core extends Twig_Extension
             new Twig_SimpleTest('even', null, array('node_class' => 'Twig_Node_Expression_Test_Even')),
             new Twig_SimpleTest('odd', null, array('node_class' => 'Twig_Node_Expression_Test_Odd')),
             new Twig_SimpleTest('defined', null, array('node_class' => 'Twig_Node_Expression_Test_Defined')),
-            new Twig_SimpleTest('sameas', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas')),
+            new Twig_SimpleTest('sameas', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas', 'deprecated' => true, 'alternative' => 'same as')),
             new Twig_SimpleTest('same as', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas')),
             new Twig_SimpleTest('none', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
             new Twig_SimpleTest('null', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
-            new Twig_SimpleTest('divisibleby', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby')),
+            new Twig_SimpleTest('divisibleby', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby', 'deprecated' => true, 'alternative' => 'divisible by')),
             new Twig_SimpleTest('divisible by', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby')),
             new Twig_SimpleTest('constant', null, array('node_class' => 'Twig_Node_Expression_Test_Constant')),
             new Twig_SimpleTest('empty', 'twig_test_empty'),
@@ -298,17 +298,28 @@ class Twig_Extension_Core extends Twig_Extension
     public function parseTestExpression(Twig_Parser $parser, Twig_NodeInterface $node)
     {
         $stream = $parser->getStream();
-        $name = $this->getTestName($parser, $node->getLine());
+        $test = $this->getTest($parser, $node->getLine());
-        $class = $this->getTestNodeClass($parser, $name);
+
+        if ($test instanceof Twig_SimpleTest && $test->isDeprecated()) {
+            $message = sprintf('Twig Test "%s" is deprecated', $test->getName());
+            if ($test->getAlternative()) {
+                $message .= sprintf('. Use "%s" instead', $test->getAlternative());
+            }
+            $message .= sprintf(' in %s at line %d.', $stream->getFilename(), $stream->getCurrent()->getLine());
+
+            @trigger_error($message, E_USER_DEPRECATED);
+        }
+
+        $class = $this->getTestNodeClass($parser, $test);
         $arguments = null;
         if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
             $arguments = $parser->getExpressionParser()->parseArguments(true);
         }
 
-        return new $class($node, $name, $arguments, $parser->getCurrentToken()->getLine());
+        return new $class($node, $test->getName(), $arguments, $parser->getCurrentToken()->getLine());
     }
 
-    protected function getTestName(Twig_Parser $parser, $line)
+    protected function getTest(Twig_Parser $parser, $line)
     {
         $stream = $parser->getStream();
         $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
@@ -316,7 +327,7 @@ class Twig_Extension_Core extends Twig_Extension
         $testMap = $env->getTests();
 
         if (isset($testMap[$name])) {
-            return $name;
+            return $testMap[$name];
         }
 
         if ($stream->test(Twig_Token::NAME_TYPE)) {
@@ -326,7 +337,7 @@ class Twig_Extension_Core extends Twig_Extension
             if (isset($testMap[$name])) {
                 $parser->getStream()->next();
 
-                return $name;
+                return $testMap[$name];
             }
         }
 
@@ -338,16 +349,13 @@ class Twig_Extension_Core extends Twig_Extension
         throw new Twig_Error_Syntax($message, $line, $parser->getFilename());
     }
 
-    protected function getTestNodeClass(Twig_Parser $parser, $name)
+    protected function getTestNodeClass(Twig_Parser $parser, $test)
     {
-        $env = $parser->getEnvironment();
+        if ($test instanceof Twig_SimpleTest) {
-        $testMap = $env->getTests();
+            return $test->getNodeClass();
-
-        if ($testMap[$name] instanceof Twig_SimpleTest) {
-            return $testMap[$name]->getNodeClass();
         }
 
-        return $testMap[$name] instanceof Twig_Test_Node ? $testMap[$name]->getClass() : 'Twig_Node_Expression_Test';
+        return $test instanceof Twig_Test_Node ? $test->getClass() : 'Twig_Node_Expression_Test';
     }
 
     /**

lib/Twig/SimpleTest.php

@@ -27,6 +27,8 @@ class Twig_SimpleTest
         $this->options = array_merge(array(
             'is_variadic' => false,
             'node_class' => 'Twig_Node_Expression_Test',
+            'deprecated' => false,
+            'alternative' => null,
         ), $options);
     }
 
@@ -49,4 +51,14 @@ class Twig_SimpleTest
     {
         return $this->options['is_variadic'];
     }
+
+    public function isDeprecated()
+    {
+        return $this->options['deprecated'];
+    }
+
+    public function getAlternative()
+    {
+        return $this->options['alternative'];
+    }
 }