Fixed Twig_Loader_Chain::exists for a loader which implements Twig_ExistsLoaderInterface

diff --git a/lib/Twig/Loader/Chain.php b/lib/Twig/Loader/Chain.php
index cd64b05..1f1cf06 100644 (file)
--- a/lib/Twig/Loader/Chain.php
+++ b/lib/Twig/Loader/Chain.php
@@ -76,8 +76,12 @@ class Twig_Loader_Chain implements Twig_LoaderInterface, Twig_ExistsLoaderInterf
         }
 
         foreach ($this->loaders as $loader) {
-            if ($loader instanceof Twig_ExistsLoaderInterface && $loader->exists($name)) {
-                return $this->hasSourceCache[$name] = true;
+            if ($loader instanceof Twig_ExistsLoaderInterface) {
+                if ($loader->exists($name)) {
+                    return $this->hasSourceCache[$name] = true;
+                }
+
+                continue;
             }
 
             try {

diff --git a/test/Twig/Tests/Loader/ChainTest.php b/test/Twig/Tests/Loader/ChainTest.php
index 580ae10..4fe0db9 100644 (file)
--- a/test/Twig/Tests/Loader/ChainTest.php
+++ b/test/Twig/Tests/Loader/ChainTest.php
@@ -60,4 +60,20 @@ class Twig_Tests_Loader_ChainTest extends PHPUnit_Framework_TestCase
 
         $this->assertEquals('bar', $loader->getSource('foo'));
     }
+
+    public function testExists()
+    {
+        $loader1 = $this->getMock('Twig_Loader_Array', array('exists', 'getSource'), array(), '', false);
+        $loader1->expects($this->once())->method('exists')->will($this->returnValue(false));
+        $loader1->expects($this->never())->method('getSource');
+
+        $loader2 = $this->getMock('Twig_LoaderInterface');
+        $loader2->expects($this->once())->method('getSource')->will($this->returnValue('content'));
+
+        $loader = new Twig_Loader_Chain();
+        $loader->addLoader($loader1);
+        $loader->addLoader($loader2);
+
+        $this->assertTrue($loader->exists('foo'));
+    }
 }