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require 'test/unit'
$KCODE = 'none'
class TestPack < Test::Unit::TestCase
def test_pack
$format = "c2x5CCxsdils_l_a6";
# Need the expression in here to force ary[5] to be numeric. This avoids
# test2 failing because ary2 goes str->numeric->str and ary does not.
ary = [1,-100,127,128,32767,987.654321098 / 100.0,12345,123456,-32767,-123456,"abcdef"]
$x = ary.pack($format)
ary2 = $x.unpack($format)
assert_equal(ary.length, ary2.length)
assert_equal(ary.join(':'), ary2.join(':'))
assert_match(/def/, $x)
$x = [-1073741825]
assert_equal($x, $x.pack("q").unpack("q"))
end
def test_pack_N
assert_equal "\000\000\000\000", [0].pack('N')
assert_equal "\000\000\000\001", [1].pack('N')
assert_equal "\000\000\000\002", [2].pack('N')
assert_equal "\000\000\000\003", [3].pack('N')
assert_equal "\377\377\377\376", [4294967294].pack('N')
assert_equal "\377\377\377\377", [4294967295].pack('N')
assert_equal "\000\000\000\001\000\000\000\001", [1,1].pack('N*')
assert_equal "\000\000\000\001\000\000\000\001\000\000\000\001", [1,1,1].pack('N*')
end
end
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