From 3a6b32f5b976a45583824cf1bbd4da29058a579f Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Sat, 6 Jul 2013 16:42:25 +0200
Subject: [PATCH] Add a two-part tests for chaining, plus lint.

---
 test/chaining.js | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/test/chaining.js b/test/chaining.js
index 16cf7bf57..6eeef0f87 100644
--- a/test/chaining.js
+++ b/test/chaining.js
@@ -17,15 +17,15 @@ $(document).ready(function() {
         hash[l]++;
         return hash;
     }, {}).value();
-    ok(counts['a'] == 16 && counts['e'] == 10, 'counted all the letters in the song');
+    ok(counts.a == 16 && counts.e == 10, 'counted all the letters in the song');
   });
 
   test("select/reject/sortBy", function() {
     var numbers = [1,2,3,4,5,6,7,8,9,10];
     numbers = _(numbers).chain().select(function(n) {
-      return n % 2 == 0;
+      return n % 2 === 0;
     }).reject(function(n) {
-      return n % 4 == 0;
+      return n % 4 === 0;
     }).sortBy(function(n) {
       return -n;
     }).value();
@@ -35,9 +35,9 @@ $(document).ready(function() {
   test("select/reject/sortBy in functional style", function() {
     var numbers = [1,2,3,4,5,6,7,8,9,10];
     numbers = _.chain(numbers).select(function(n) {
-      return n % 2 == 0;
+      return n % 2 === 0;
     }).reject(function(n) {
-      return n % 4 == 0;
+      return n % 4 === 0;
     }).sortBy(function(n) {
       return -n;
     }).value();
@@ -56,4 +56,10 @@ $(document).ready(function() {
     equal(numbers.join(', '), "34, 10, 8, 6, 4, 2, 10, 10", 'can chain together array functions.');
   });
 
+  test("chaining works in small stages", function() {
+    var o = _([1, 2, 3, 4]).chain();
+    deepEqual(o.filter(function(i) { return i < 3; }).value(), [1, 2]);
+    deepEqual(o.filter(function(i) { return i > 2; }).value(), [3, 4]);
+  });
+
 });