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Contents
require "#{File.dirname(__FILE__)}/../../test_helper"
class ArrayTest < Test::Unit::TestCase
def setup
@arr = %w(a b c d)
@hash_arr = [
{:name => "peter", :occupation => "computer scientist"},
{:name => "al", :occupation => "computer scientist"},
{:name => "matt", :occupation => "doctor"},
{:name => "jenna", :occupation => "lawyer"}
]
end
def test_have_collect_with_index
out = []
@arr.collect_with_index do |ele, i|
out << "#{ele}#{i+1}"
end
assert_equal ["a1", "b2", "c3", "d4"], out
end
def test_be_able_to_select_with_hash
assert_equal @hash_arr.select_with_hash(:name => "matt").first[:occupation], "doctor"
assert_equal @hash_arr.select_with_hash(:occupation => "computer scientist").first[:name], "peter"
assert @hash_arr.select_with_hash(:occupation => "matt").empty?
end
def test_should_be_able_to_wrap_with_the_next
assert_equal @arr.wrapping_next("a"), "b"
assert_equal @arr.wrapping_next("b"), "c"
assert_equal @arr.wrapping_next("c"), "d"
assert_equal @arr.wrapping_next("d"), "a"
end
def test_swap
assert_equal %w(a c b d), @arr.swap!(1,2)
assert_equal %w(d c b a), @arr.swap!(0,3)
assert_equal %w(d c a b), @arr.swap!(2,3)
end
def test_zip_offset
arr = %w(a b c d e f)
assert_equal [["a","b"],["b","c"],["c","d"],["d","e"],["e","f"]], arr.zip_offset(1)
assert_equal [["a","b"],["b","c"],["c","d"],["d","e"]], arr.zip_offset(2)
assert_equal [["a","b"]], arr.zip_offset(5)
end
def test_rotate
arr = %w(a b c d e)
assert_equal %w(b c d e a), arr.rotate
end
end
Version data entries
26 entries across 26 versions & 3 rubygems