Merge branch 'master' of https://github.com/rails/rails into performance_test

1 files changed, 28 insertions, 0 deletions

diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 2304c20a5f..fc9df8c7a3 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -672,6 +672,34 @@ class RelationTest < ActiveRecord::TestCase
     assert_no_queries { assert_equal 9, best_posts.size }
   end
 
+  def test_size_with_limit
+    posts = Post.limit(10)
+
+    assert_queries(1) { assert_equal 10, posts.size }
+    assert ! posts.loaded?
+
+    best_posts = posts.where(:comments_count => 0)
+    best_posts.to_a # force load
+    assert_no_queries { assert_equal 9, best_posts.size }
+  end
+
+  def test_size_with_zero_limit
+    posts = Post.limit(0)
+
+    assert_no_queries { assert_equal 0, posts.size }
+    assert ! posts.loaded?
+
+    posts.to_a # force load
+    assert_no_queries { assert_equal 0, posts.size }
+  end
+
+  def test_empty_with_zero_limit
+    posts = Post.limit(0)
+
+    assert_no_queries { assert_equal true, posts.empty? }
+    assert ! posts.loaded?
+  end
+
   def test_count_complex_chained_relations
     posts = Post.select('comments_count').where('id is not null').group("author_id").where("comments_count > 0")