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| author | David Heinemeier Hansson <david@loudthinking.com> | 2006-06-24 16:14:59 +0000 |
|---|---|---|
| committer | David Heinemeier Hansson <david@loudthinking.com> | 2006-06-24 16:14:59 +0000 |
| commit | fd0eaaa407fb8fd704967be2734c1b094ac630d9 (patch) | |
| tree | e6b8d271e1f70ab38a15faafde16f80abd6e1322 /activesupport/test/core_ext | |
| parent | 8b89bd779a1ddc78da63de295574b8519c3e94c8 (diff) | |
| download | rails-fd0eaaa407fb8fd704967be2734c1b094ac630d9.tar.gz rails-fd0eaaa407fb8fd704967be2734c1b094ac630d9.tar.bz2 rails-fd0eaaa407fb8fd704967be2734c1b094ac630d9.zip | |
Added Enumerable#sum for calculating a sum from the elements [DHH]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4489 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport/test/core_ext')
| -rw-r--r-- | activesupport/test/core_ext/enumerable_test.rb | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/activesupport/test/core_ext/enumerable_test.rb b/activesupport/test/core_ext/enumerable_test.rb index df14200e42..882111cd79 100644 --- a/activesupport/test/core_ext/enumerable_test.rb +++ b/activesupport/test/core_ext/enumerable_test.rb @@ -1,8 +1,9 @@ require 'test/unit' require File.dirname(__FILE__) + '/../../lib/active_support/core_ext/enumerable' +Payment = Struct.new(:price) + class EnumerableTests < Test::Unit::TestCase - def test_group_by names = %w(marcel sam david jeremy) klass = Class.new @@ -17,4 +18,10 @@ class EnumerableTests < Test::Unit::TestCase assert group.all? {|person| person.name == name} end end + + def test_sums + payments = [ Payment.new(5), Payment.new(15), Payment.new(10) ] + assert_equal 30, payments.sum(&:price) + assert_equal 60, payments.sum { |p| p.price * 2 } + end end |