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##
# Enumerable(Ext) Test
assert("Enumerable#drop") do
a = [1, 2, 3, 4, 5, 0]
assert_equal a.drop(3), [4, 5, 0]
assert_equal a.drop(6), []
end
assert("Enumerable#drop_while") do
a = [1, 2, 3, 4, 5, 0]
assert_equal a.drop_while {|i| i < 3 }, [3, 4, 5, 0]
end
assert("Enumerable#take") do
a = [1, 2, 3, 4, 5, 0]
assert_equal a.take(3), [1, 2, 3]
end
assert("Enumerable#take_while") do
a = [1, 2, 3, 4, 5, 0]
assert_equal a.take_while {|i| i < 3 }, [1, 2]
end
assert("Enumerable#each_cons") do
a = []
(1..5).each_cons(3){|e| a << e}
assert_equal a, [[1, 2, 3], [2, 3, 4], [3, 4, 5]]
end
assert("Enumerable#each_slice") do
a = []
(1..10).each_slice(3){|e| a << e}
assert_equal a, [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10]]
end
assert("Enumerable#group_by") do
r = (1..6).group_by {|i| i % 3 }
assert_equal r[0], [3, 6]
assert_equal r[1], [1, 4]
assert_equal r[2], [2, 5]
end
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