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-rw-r--r--activerecord/test/cases/relations_test.rb16
1 files changed, 16 insertions, 0 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 379c0c0758..8298d7534c 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -321,6 +321,22 @@ class RelationTest < ActiveRecord::TestCase
assert_equal 1, person_with_reader_and_post.size
end
+ def test_no_arguments_to_query_methods_raise_errors
+ assert_raises(ArgumentError) { Topic.references() }
+ assert_raises(ArgumentError) { Topic.includes() }
+ assert_raises(ArgumentError) { Topic.preload() }
+ assert_raises(ArgumentError) { Topic.group() }
+ assert_raises(ArgumentError) { Topic.reorder() }
+ end
+
+ def test_blank_like_arguments_to_query_methods_dont_raise_errors
+ assert_nothing_raised { Topic.references([]) }
+ assert_nothing_raised { Topic.includes([]) }
+ assert_nothing_raised { Topic.preload([]) }
+ assert_nothing_raised { Topic.group([]) }
+ assert_nothing_raised { Topic.reorder([]) }
+ end
+
def test_scoped_responds_to_delegated_methods
relation = Topic.all