Sha256: a4a7289ceb92b8f81f807780a714ca8220da9dbd0ed0f907a5551c4bca094cd5
Contents?: true
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Versions: 15
Compression:
Stored size: 1.32 KB
Contents
require 'helper'
class TestProduct < Test::Unit::TestCase
context "Enumerable objects" do
result = [[1, 1], [1, 2], [1, 3],
[2, 1], [2, 2], [2, 3],
[3, 1], [3, 2], [3, 3],
[4, 1], [4, 2], [4, 3],
[5, 1], [5, 2], [5, 3]]
should "have cartesian product iterator" do
p = []
(1..5).each_product_pair(1..3) do |pair|
p << pair
end
assert_equal result, p
p = []
(1..5).to_a.each_product_pair((1..3).to_a) do |pair|
p << pair
end
assert_equal result, p
p = []
(1..5).each_product_pair(1..3) do |x,y|
p << [x,y]
end
assert_equal result, p
end
should "have exernal cartesian product iterator" do
it = (1..5).each_product_pair(1..3)
p = []
it.each do |pair|
p << pair
end
assert_equal result, p
it = (1..5).to_a.each_product_pair((1..3).to_a)
p = []
it.each do |pair|
p << pair
end
assert_equal result, p
assert_equal result, (1..5).each_product_pair(1..3).to_a
assert_equal result, (1..5).to_a.each_product_pair(1..3).to_a
assert_equal result, (1..5).each_product_pair((1..3).to_a).to_a
assert_equal result, (1..5).to_a.each_product_pair((1..3).to_a).to_a
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems