From 4bc443e834c9945de84fb42eb6ad756fe8cca5e3 Mon Sep 17 00:00:00 2001
From: majortom731 <majortom731@googlemail.com>
Date: Wed, 12 Mar 2014 19:34:15 +0100
Subject: [PATCH] Added testHelperSubexpressions()

---
 tests/Xamin/HandlebarsTest.php | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tests/Xamin/HandlebarsTest.php b/tests/Xamin/HandlebarsTest.php
index 6ad6644..75dc2ec 100644
--- a/tests/Xamin/HandlebarsTest.php
+++ b/tests/Xamin/HandlebarsTest.php
@@ -774,4 +774,27 @@ class HandlebarsTest extends \PHPUnit_Framework_TestCase
 
     }
 
+    /**
+     * Helper subexpressions test
+     */
+    public function testHelperSubexpressions()
+    {
+        $loader = new \Handlebars\Loader\StringLoader();
+        $engine = new \Handlebars\Handlebars(array('loader' => $loader));
+        $engine->addHelper('test', function ($template, $context, $arg) {
+            return $arg.'Test.';
+        });
+
+        // assert that nested syntax is accepted and sub-helper is run
+        $this->assertEquals('Test.Test.', $engine->render('{{test (test)}}', array()));
+
+        $engine->addHelper('add', function ($template, $context, $arg) {
+            $values = explode( " ", $arg );
+            return $values[0] + $values[1];
+        });
+
+        // assert that subexpression result is inserted correctly as argument to top level helper
+        $this->assertEquals('42', $engine->render('{{add 21 (add 10 (add 5 6))}}', array()));
+    }
+
 }
\ No newline at end of file