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require 'test/unit'
$KCODE = 'none'
class TestHash < Test::Unit::TestCase
def test_hash
$x = {1=>2, 2=>4, 3=>6}
$y = {1, 2, 2, 4, 3, 6}
assert_equal($x[1], 2)
assert(begin
for k,v in $y
raise if k*2 != v
end
true
rescue
false
end)
assert_equal($x.length, 3)
assert($x.has_key?(1))
assert($x.has_value?(4))
assert_equal($x.values_at(2,3), [4,6])
assert_equal($x, {1=>2, 2=>4, 3=>6})
$z = $y.keys.join(":")
assert_equal($z, "1:2:3")
$z = $y.values.join(":")
assert_equal($z, "2:4:6")
assert_equal($x, $y)
$y.shift
assert_equal($y.length, 2)
$z = [1,2]
$y[$z] = 256
assert_equal($y[$z], 256)
$x = Hash.new(0)
$x[1] = 1
assert_equal($x[1], 1)
assert_equal($x[2], 0)
$x = Hash.new([])
assert_equal($x[22], [])
assert($x[22].equal?($x[22]))
$x = Hash.new{[]}
assert_equal($x[22], [])
assert(!$x[22].equal?($x[22]))
$x = Hash.new{|h,k| $z = k; h[k] = k*2}
$z = 0
assert_equal($x[22], 44)
assert_equal($z, 22)
$z = 0
assert_equal($x[22], 44)
assert_equal($z, 0)
$x.default = 5
assert_equal($x[23], 5)
$x = Hash.new
def $x.default(k)
$z = k
self[k] = k*2
end
$z = 0
assert_equal($x[22], 44)
assert_equal($z, 22)
$z = 0
assert_equal($x[22], 44)
assert_equal($z, 0)
end
end
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