1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
require_relative 'shared/enumeratorize'
require_relative '../enumerable/shared/enumeratorized'
# 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 "yields elements added to the end of the array by the block" do
a = [2]
iterated = []
a.each { |x| iterated << x; x.times { a << 0 } }
iterated.should == [2, 0, 0]
end
it "does not yield elements deleted from the end of the array" do
a = [2, 3, 1]
iterated = []
a.each { |x| iterated << x; a.delete_at(2) if x == 3 }
iterated.should == [2, 3]
end
it_behaves_like :enumeratorize, :each
it_behaves_like :enumeratorized_with_origin_size, :each, [1,2,3]
end
|
