From 197b62e92abb00113c482019cf7ee7c99b298b87 Mon Sep 17 00:00:00 2001
From: Cyrus Najmabadi <cyrusn@microsoft.com>
Date: Tue, 9 Dec 2014 18:13:09 -0800
Subject: [PATCH] Add incremental test.

---
 tests/cases/unittests/incrementalParser.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tests/cases/unittests/incrementalParser.ts b/tests/cases/unittests/incrementalParser.ts
index 98f100380f4..e0800c2c51d 100644
--- a/tests/cases/unittests/incrementalParser.ts
+++ b/tests/cases/unittests/incrementalParser.ts
@@ -563,6 +563,17 @@ module ts {
             compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, 0);
         });
 
+        it('Yield context 2',() => {
+            // We're changing from a generator to a non-genarator.  We can't reuse statement nodes.
+            var source = "function *foo() {\r\nyield(foo1);\r\n}";
+
+            var oldText = ScriptSnapshot.fromString(source);
+            var index = source.indexOf("*");
+            var newTextAndChange = withDelete(oldText, index, "*".length);
+
+            compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, 0);
+        });
+
         // Simulated typing tests.
 
         it('Type extends clause 1',() => {