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added Range#count? for Ruby 1.8

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Signed-off-by: Santiago Pastorino <santiago@wyeworks.com>
This commit is contained in:
Diego Carrion 2011-02-19 21:13:07 -02:00 committed by Santiago Pastorino
parent 289cc15f1a
commit b0da0dd834
3 changed files with 16 additions and 0 deletions
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1
activesupport/lib/active_support/core_ext/range.rb
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@ -2,3 +2,4 @@ require 'active_support/core_ext/range/blockless_step'
require 'active_support/core_ext/range/conversions'
require 'active_support/core_ext/range/include_range'
require 'active_support/core_ext/range/overlaps'
require 'active_support/core_ext/range/cover'

3
activesupport/lib/active_support/core_ext/range/cover.rb Normal file
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@ -0,0 +1,3 @@
class Range
alias_method(:cover?, :include?) unless instance_methods.include?(:cover?)
end

12
activesupport/test/core_ext/range_ext_test.rb
View file

@ -62,4 +62,16 @@ class RangeTest < Test::Unit::TestCase
(1..10).step(2) {|i| array << i }
assert_equal [1,3,5,7,9], array
end
if RUBY_VERSION < '1.9'
def test_cover
assert((1..3).cover?(2))
assert !(1..3).cover?(4)
end
else
def test_cover_is_not_override
range = (1..3)
assert range.method(:include?) != range.method(:cover?)
end
end
end