1 files changed, 7 insertions, 7 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 4b146c11bc..88df997a2f 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -552,13 +552,6 @@ class RelationTest < ActiveRecord::TestCase
     end
   end
 
-  def test_deep_preload
-    post = Post.preload(author: :posts, comments: :post).first
-
-    assert_predicate post.author.association(:posts), :loaded?
-    assert_predicate post.comments.first.association(:post), :loaded?
-  end
-
   def test_preload_applies_to_all_chained_preloaded_scopes
     assert_queries(3) do
       post = Post.with_comments.with_tags.first
@@ -750,6 +743,13 @@ class RelationTest < ActiveRecord::TestCase
     assert_equal [], relation.to_a
   end
 
+  def test_typecasting_where_with_array
+    ids = Author.pluck(:id)
+    slugs = ids.map { |id| "#{id}-as-a-slug" }
+
+    assert_equal Author.all.to_a, Author.where(id: slugs).to_a
+  end
+
   def test_find_all_using_where_with_relation
     david = authors(:david)
     # switching the lines below would succeed in current rails