aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/associations
diff options
context:
space:
mode:
Diffstat (limited to 'activerecord/test/associations')
-rw-r--r--activerecord/test/associations/join_model_test.rb33
1 files changed, 33 insertions, 0 deletions
diff --git a/activerecord/test/associations/join_model_test.rb b/activerecord/test/associations/join_model_test.rb
index c67956fba3..7b77765d7a 100644
--- a/activerecord/test/associations/join_model_test.rb
+++ b/activerecord/test/associations/join_model_test.rb
@@ -418,6 +418,39 @@ class AssociationsJoinModelTest < Test::Unit::TestCase
assert_equal tags, posts(:thinking).tags.push(tags(:general))
end
+ def test_delete_associate_when_deleting_from_has_many_through
+ count = posts(:thinking).tags.count
+ tags_before = posts(:thinking).tags
+ tag = Tag.create!(:name => 'doomed')
+ post_thinking = posts(:thinking)
+ post_thinking.tags << tag
+ assert_equal(count + 1, post_thinking.tags(true).size)
+
+ assert_nothing_raised { post_thinking.tags.delete(tag) }
+ assert_equal(count, post_thinking.tags.size)
+ assert_equal(count, post_thinking.tags(true).size)
+ assert_equal(tags_before.sort, post_thinking.tags.sort)
+ end
+
+ def test_delete_associate_when_deleting_from_has_many_through_with_multiple_tags
+ count = posts(:thinking).tags.count
+ tags_before = posts(:thinking).tags
+ doomed = Tag.create!(:name => 'doomed')
+ doomed2 = Tag.create!(:name => 'doomed2')
+ quaked = Tag.create!(:name => 'quaked')
+ post_thinking = posts(:thinking)
+ post_thinking.tags << doomed << doomed2
+ assert_equal(count + 2, post_thinking.tags(true).size)
+
+ assert_nothing_raised { post_thinking.tags.delete(doomed, doomed2, quaked) }
+ assert_equal(count, post_thinking.tags.size)
+ assert_equal(count, post_thinking.tags(true).size)
+ assert_equal(tags_before.sort, post_thinking.tags.sort)
+ end
+
+ def test_deleting_junk_from_has_many_through_should_raise_type_mismatch
+ assert_raise(ActiveRecord::AssociationTypeMismatch) { posts(:thinking).tags.delete("Uhh what now?") }
+ end
def test_has_many_through_sum_uses_calculations
assert_nothing_raised { authors(:david).comments.sum(:post_id) }