From c307d306c03a39de7643095f34b4e7d68e4cd72c Mon Sep 17 00:00:00 2001
From: Cyrus Najmabadi <cyrusn@microsoft.com>
Date: Tue, 9 Dec 2014 17:34:26 -0800
Subject: [PATCH] Add incremental test.

---
 tests/cases/unittests/incrementalParser.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/cases/unittests/incrementalParser.ts b/tests/cases/unittests/incrementalParser.ts
index 9f4dba5f9f7..7c81320678f 100644
--- a/tests/cases/unittests/incrementalParser.ts
+++ b/tests/cases/unittests/incrementalParser.ts
@@ -441,6 +441,16 @@ module ts {
             compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, 0);
         });
 
+        it('Arrow function to assertion',() => {
+            var source = "var v = <T>(a) => 1;";
+
+            var index = source.indexOf(' =>');
+            var oldText = ScriptSnapshot.fromString(source);
+            var newTextAndChange = withDelete(oldText, index, " => 1".length);
+
+            compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, 0);
+        });
+
         // Simulated typing tests.
 
         it('Type extends clause 1',() => {