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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(2, $x[1])
assert(begin
for k,v in $y
raise if k*2 != v
end
true
rescue
false
end)
assert_equal(3, $x.length)
assert($x.has_key?(1))
assert($x.has_value?(4))
assert_equal([4,6], $x.values_at(2,3))
assert_equal({1=>2, 2=>4, 3=>6}, $x)
$z = $y.keys.join(":")
assert_equal("1:2:3", $z)
$z = $y.values.join(":")
assert_equal("2:4:6", $z)
assert_equal($x, $y)
$y.shift
assert_equal(2, $y.length)
$z = [1,2]
$y[$z] = 256
assert_equal(256, $y[$z])
$x = Hash.new(0)
$x[1] = 1
assert_equal(1, $x[1])
assert_equal(0, $x[2])
$x = Hash.new([])
assert_equal([], $x[22])
assert_same($x[22], $x[22])
$x = Hash.new{[]}
assert_equal([], $x[22])
assert_not_same($x[22], $x[22])
$x = Hash.new{|h,k| $z = k; h[k] = k*2}
$z = 0
assert_equal(44, $x[22])
assert_equal(22, $z)
$z = 0
assert_equal(44, $x[22])
assert_equal(0, $z)
$x.default = 5
assert_equal(5, $x[23])
$x = Hash.new
def $x.default(k)
$z = k
self[k] = k*2
end
$z = 0
assert_equal(44, $x[22])
assert_equal(22, $z)
$z = 0
assert_equal(44, $x[22])
assert_equal(0, $z)
end
end
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