diff options
Diffstat (limited to 'activesupport/test/core_ext/enumerable_test.rb')
| -rw-r--r-- | activesupport/test/core_ext/enumerable_test.rb | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/activesupport/test/core_ext/enumerable_test.rb b/activesupport/test/core_ext/enumerable_test.rb index 3180755e5f..0590846b7b 100644 --- a/activesupport/test/core_ext/enumerable_test.rb +++ b/activesupport/test/core_ext/enumerable_test.rb @@ -44,7 +44,13 @@ class EnumerableTests < Test::Unit::TestCase assert_raise(TypeError) { payments.sum(&:price) } assert_equal 60, payments.sum { |p| p.price.to_i * 2 } end - + + def test_empty_sums + assert_equal 0, [].sum + assert_equal 0, [].sum { |i| i } + assert_equal Payment.new(0), [].sum(Payment.new(0)) + end + def test_index_by payments = [ Payment.new(5), Payment.new(15), Payment.new(10) ] assert_equal( |