Fix broken standardfilter test

lib/liquid/standardfilters.rb

@@ -98,7 +98,7 @@ module Liquid
     # Sort elements of the array
     # provide optional property with which to sort an array of hashes or drops
     def sort(input, property = nil)
-      ary = InputIterator.new(input).to_a
+      ary = InputIterator.new(input)
       if property.nil?
         ary.sort
       elsif ary.first.respond_to?('[]'.freeze) and !ary.first[property].nil?

test/integration/standard_filter_test.rb

@@ -7,6 +7,8 @@ class Filters
 end
 
 class TestThing
+  attr_reader :foo
+
   def initialize
     @foo = 0
   end
@@ -149,7 +151,8 @@ class StandardFiltersTest < Test::Unit::TestCase
 
   def test_sort_calls_to_liquid
     t = TestThing.new
-    assert_template_result "woot: 1", '{{ foo | sort: "whatever" }}', "foo" => [t]
+    Liquid::Template.parse('{{ foo | sort: "whatever" }}').render("foo" => [t])
+    assert t.foo > 0
   end
 
   def test_map_over_proc