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require 'test/unit'
class TestEncodingConverter < Test::Unit::TestCase
def assert_econv(ret_expected, dst_expected, src_expected, to, from, src, opt={})
opt[:obuf_len] ||= 100
src = src.dup
ec = Encoding::Converter.new(from, to)
dst = ''
while true
ret = ec.primitive_convert(src, dst2="", opt[:obuf_len], 0)
dst << dst2
#p [ret, dst, src]
break if ret != :obuf_full
end
assert_equal([ret_expected, dst_expected, src_expected], [ret, dst, src])
end
def test_eucjp_to_utf8
assert_econv(:finished, "", "", "EUC-JP", "UTF-8", "")
assert_econv(:finished, "a", "", "EUC-JP", "UTF-8", "a")
end
def test_iso2022jp
assert_econv(:finished, "", "", "ISO-2022-JP", "Shift_JIS", "")
end
def test_invalid
assert_econv(:invalid_input, "", "", "EUC-JP", "UTF-8", "\x80")
assert_econv(:invalid_input, "a", "", "EUC-JP", "UTF-8", "a\x80")
assert_econv(:invalid_input, "a", "\x80", "EUC-JP", "UTF-8", "a\x80\x80")
assert_econv(:invalid_input, "abc", "def", "EUC-JP", "UTF-8", "abc\xFFdef")
assert_econv(:invalid_input, "abc", "def", "EUC-JP", "Shift_JIS", "abc\xFFdef")
assert_econv(:invalid_input, "abc", "def", "EUC-JP", "Shift_JIS", "abc\xFFdef", :obuf_len=>1)
assert_econv(:invalid_input, "abc", "def", "Shift_JIS", "ISO-2022-JP", "abc\xFFdef")
end
def test_errors
ec = Encoding::Converter.new("UTF-16BE", "EUC-JP")
src = "\xFF\xFE\x00A\xDC\x00"
ret = ec.primitive_convert(src, dst="", 10, 0)
assert_equal("", src)
assert_equal("", dst)
assert_equal(:undefined_conversion, ret) # \xFF\xFE is not representable in EUC-JP
ret = ec.primitive_convert(src, dst="", 10, 0)
assert_equal("", src)
assert_equal("A", dst)
assert_equal(:invalid_input, ret) # \xDC\x00 is invalid as UTF-16BE
ret = ec.primitive_convert(src, dst="", 10, 0)
assert_equal("", src)
assert_equal("", dst)
assert_equal(:finished, ret)
end
end
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