diff options
author | José Valim <jose.valim@gmail.com> | 2012-03-16 07:37:13 -0700 |
---|---|---|
committer | José Valim <jose.valim@gmail.com> | 2012-03-16 07:37:13 -0700 |
commit | 8d87d5c94708c2d93010083f97244748f96bb9dc (patch) | |
tree | 146b49ad042fc7dcd74434e5717d2e9c19bb16e6 /activerecord | |
parent | 5245eb30b144380d9c8c48538a978fb8facb71c0 (diff) | |
parent | 964ed6e802018005f6ffc9a95d13dea68f26fdb7 (diff) | |
download | rails-8d87d5c94708c2d93010083f97244748f96bb9dc.tar.gz rails-8d87d5c94708c2d93010083f97244748f96bb9dc.tar.bz2 rails-8d87d5c94708c2d93010083f97244748f96bb9dc.zip |
Merge pull request #5469 from yakko/master
tests for Relation .present? .blank?
Diffstat (limited to 'activerecord')
-rw-r--r-- | activerecord/test/cases/relations_test.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb index 91bc407d42..515f0b9d04 100644 --- a/activerecord/test/cases/relations_test.rb +++ b/activerecord/test/cases/relations_test.rb @@ -1234,4 +1234,23 @@ class RelationTest < ActiveRecord::TestCase scope = Post.order('foo(comments.body)') assert_equal [], scope.references_values end + + def test_presence + topics = Topic.scoped + + assert_queries(1) do + #checking if there are topics is used before you actually display them, + #thus it shouldn't invoke an extra count query + assert topics.present? + assert !topics.blank? + + #shows count of topics and loops after loading the query should not trigger extra queries either + assert_no_queries { topics.size } + assert_no_queries { topics.count } + assert_no_queries { topics.length } + assert_no_queries { topics.each } + end + + assert topics.loaded? + end end |