diff options
Diffstat (limited to 'activesupport/test/core_ext/array/extract_options_test.rb')
-rw-r--r-- | activesupport/test/core_ext/array/extract_options_test.rb | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/array/extract_options_test.rb b/activesupport/test/core_ext/array/extract_options_test.rb new file mode 100644 index 0000000000..0481a507cf --- /dev/null +++ b/activesupport/test/core_ext/array/extract_options_test.rb @@ -0,0 +1,45 @@ +require 'abstract_unit' +require 'active_support/core_ext/array' +require 'active_support/core_ext/hash' + +class ExtractOptionsTest < ActiveSupport::TestCase + class HashSubclass < Hash + end + + class ExtractableHashSubclass < Hash + def extractable_options? + true + end + end + + def test_extract_options + assert_equal({}, [].extract_options!) + assert_equal({}, [1].extract_options!) + assert_equal({ a: :b }, [{ a: :b }].extract_options!) + assert_equal({ a: :b }, [1, { a: :b }].extract_options!) + end + + def test_extract_options_doesnt_extract_hash_subclasses + hash = HashSubclass.new + hash[:foo] = 1 + array = [hash] + options = array.extract_options! + assert_equal({}, options) + assert_equal([hash], array) + end + + def test_extract_options_extracts_extractable_subclass + hash = ExtractableHashSubclass.new + hash[:foo] = 1 + array = [hash] + options = array.extract_options! + assert_equal({ foo: 1 }, options) + assert_equal([], array) + end + + def test_extract_options_extracts_hash_with_indifferent_access + array = [{ foo: 1 }.with_indifferent_access] + options = array.extract_options! + assert_equal(1, options[:foo]) + end +end |