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ruby--ruby/spec/rubyspec/core/array/each_spec.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-07 12:04:49 +00:00

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Ruby

require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
require File.expand_path('../shared/enumeratorize', __FILE__)
require File.expand_path('../../enumerable/shared/enumeratorized', __FILE__)
# Modifying a collection while the contents are being iterated
# gives undefined behavior. See
# http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/23633
describe "Array#each" do
it "yields each element to the block" do
a = []
x = [1, 2, 3]
x.each { |item| a << item }.should equal(x)
a.should == [1, 2, 3]
end
it "yields each element to a block that takes multiple arguments" do
a = [[1, 2], :a, [3, 4]]
b = []
a.each { |x, y| b << x }
b.should == [1, :a, 3]
b = []
a.each { |x, y| b << y }
b.should == [2, nil, 4]
end
it_behaves_like :enumeratorize, :each
it_behaves_like :enumeratorized_with_origin_size, :each, [1,2,3]
end