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Merged pull request #317 from jaredonline/master.

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Change Array#from to return consistent results
This commit is contained in:
David Heinemeier Hansson
2011-04-26 14:55:22 -07:00
parent 4ce14fb080 74634d452b
commit 344c7766a5
2 changed files with 3 additions and 3 deletions
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4
activesupport/lib/active_support/core_ext/array/access.rb
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@@ -3,10 +3,10 @@ class Array
#
# %w( a b c d ).from(0) # => %w( a b c d )
# %w( a b c d ).from(2) # => %w( c d )
# %w( a b c d ).from(10) # => nil
# %w( a b c d ).from(10) # => %w()
# %w().from(0) # => %w()
def from(position)
self[position..-1]
position > length ? [] : self[position..-1]
end
# Returns the beginning of the array up to +position+.

2
activesupport/test/core_ext/array_ext_test.rb
View File

@@ -10,7 +10,7 @@ class ArrayExtAccessTests < Test::Unit::TestCase
def test_from
assert_equal %w( a b c d ), %w( a b c d ).from(0)
assert_equal %w( c d ), %w( a b c d ).from(2)
assert_nil %w( a b c d ).from(10)
assert_equal %w(), %w( a b c d ).from(10)
end
def test_to