From 6c5772977916a02381fcb7d03ebb49a1e5b6e4e8 Mon Sep 17 00:00:00 2001
From: Jason Turner <jason@emptycrate.com>
Date: Sat, 19 May 2012 21:42:02 -0600
Subject: [PATCH] Add unit test for pass_by_preference

---
 unittests/pass_by_reference.chai | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 unittests/pass_by_reference.chai

diff --git a/unittests/pass_by_reference.chai b/unittests/pass_by_reference.chai
new file mode 100644
index 0000000..89c7760
--- /dev/null
+++ b/unittests/pass_by_reference.chai
@@ -0,0 +1,19 @@
+def f(x) { x+= 2; }
+
+var i = 1;
+
+assert_equal(i, 1);
+
+f(i);
+
+assert_equal(i, 3);
+
+def g(x) { x+= " World"; }
+
+var s = "Hello";
+
+assert_equal(s, "Hello");
+
+g(s);
+
+assert_equal(s, "Hello World");