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require 'test/unit'
class TestEncodingConverter < Test::Unit::TestCase
def check_ec(edst, esrc, eres, dst, src, ec, off, len, flags=0)
res = ec.primitive_convert(src, dst, off, len, flags)
assert_equal([edst.dup.force_encoding("ASCII-8BIT"),
esrc.dup.force_encoding("ASCII-8BIT"),
eres],
[dst.dup.force_encoding("ASCII-8BIT"),
src.dup.force_encoding("ASCII-8BIT"),
res])
end
def assert_econv(converted, eres, obuf_bytesize, ec, consumed, rest, flags=0)
ec = Encoding::Converter.new(*ec) if Array === ec
i = consumed + rest
o = ""
ret = ec.primitive_convert(i, o, 0, obuf_bytesize, flags)
assert_equal([converted, eres, rest],
[o, ret, i])
end
def test_new
assert_kind_of(Encoding::Converter, Encoding::Converter.new("UTF-8", "EUC-JP"))
assert_kind_of(Encoding::Converter, Encoding::Converter.new(Encoding::UTF_8, Encoding::EUC_JP))
end
def test_get_encoding
ec = Encoding::Converter.new("UTF-8", "EUC-JP")
assert_equal(Encoding::UTF_8, ec.source_encoding)
assert_equal(Encoding::EUC_JP, ec.destination_encoding)
end
def test_output_region
ec = Encoding::Converter.new("UTF-8", "EUC-JP")
ec.primitive_convert(src="a", dst="b", nil, 1, Encoding::Converter::PARTIAL_INPUT)
assert_equal("ba", dst)
ec.primitive_convert(src="a", dst="b", 0, 1, Encoding::Converter::PARTIAL_INPUT)
assert_equal("a", dst)
ec.primitive_convert(src="a", dst="b", 1, 1, Encoding::Converter::PARTIAL_INPUT)
assert_equal("ba", dst)
assert_raise(ArgumentError) {
ec.primitive_convert(src="a", dst="b", 2, 1, Encoding::Converter::PARTIAL_INPUT)
}
assert_raise(ArgumentError) {
ec.primitive_convert(src="a", dst="b", -1, 1, Encoding::Converter::PARTIAL_INPUT)
}
assert_raise(ArgumentError) {
ec.primitive_convert(src="a", dst="b", 1, -1, Encoding::Converter::PARTIAL_INPUT)
}
end
def test_partial_input
ec = Encoding::Converter.new("UTF-8", "EUC-JP")
ret = ec.primitive_convert(src="", dst="", nil, 10, Encoding::Converter::PARTIAL_INPUT)
assert_equal(:source_buffer_empty, ret)
ret = ec.primitive_convert(src="", dst="", nil, 10)
assert_equal(:finished, ret)
end
def test_accumulate_dst1
ec = Encoding::Converter.new("UTF-8", "EUC-JP")
a = ["", "abc\u{3042}def", ec, nil, 1]
check_ec("a", "c\u{3042}def", :destination_buffer_full, *a)
check_ec("ab", "\u{3042}def", :destination_buffer_full, *a)
check_ec("abc", "def", :destination_buffer_full, *a)
check_ec("abc\xA4", "def", :destination_buffer_full, *a)
check_ec("abc\xA4\xA2", "ef", :destination_buffer_full, *a)
check_ec("abc\xA4\xA2d", "f", :destination_buffer_full, *a)
check_ec("abc\xA4\xA2de", "", :destination_buffer_full, *a)
check_ec("abc\xA4\xA2def", "", :finished, *a)
end
def test_accumulate_dst2
ec = Encoding::Converter.new("UTF-8", "EUC-JP")
a = ["", "abc\u{3042}def", ec, nil, 2]
check_ec("ab", "\u{3042}def", :destination_buffer_full, *a)
check_ec("abc\xA4", "def", :destination_buffer_full, *a)
check_ec("abc\xA4\xA2d", "f", :destination_buffer_full, *a)
check_ec("abc\xA4\xA2def", "", :finished, *a)
end
def test_eucjp_to_utf8
assert_econv("", :finished, 100, ["UTF-8", "EUC-JP"], "", "")
assert_econv("a", :finished, 100, ["UTF-8", "EUC-JP"], "a", "")
end
def test_iso2022jp
assert_econv("", :finished, 100, ["Shift_JIS", "ISO-2022-JP"], "", "")
end
def test_iso2022jp_outstream
ec = Encoding::Converter.new("EUC-JP", "ISO-2022-JP")
a = ["", src="", ec, nil, 50, Encoding::Converter::PARTIAL_INPUT]
src << "a"; check_ec("a", "", :source_buffer_empty, *a)
src << "\xA2"; check_ec("a", "", :source_buffer_empty, *a)
src << "\xA4"; check_ec("a\e$B\"$", "", :source_buffer_empty, *a)
src << "\xA1"; check_ec("a\e$B\"$", "", :source_buffer_empty, *a)
src << "\xA2"; check_ec("a\e$B\"$!\"", "", :source_buffer_empty, *a)
src << "b"; check_ec("a\e$B\"$!\"\e(Bb", "", :source_buffer_empty, *a)
src << "\xA2\xA6"; check_ec("a\e$B\"$!\"\e(Bb\e$B\"&", "", :source_buffer_empty, *a)
a[-1] = 0; check_ec("a\e$B\"$!\"\e(Bb\e$B\"&\e(B", "", :finished, *a)
end
def test_invalid
assert_econv("", :invalid_byte_sequence, 100, ["UTF-8", "EUC-JP"], "\x80", "")
assert_econv("a", :invalid_byte_sequence, 100, ["UTF-8", "EUC-JP"], "a\x80", "")
assert_econv("a", :invalid_byte_sequence, 100, ["UTF-8", "EUC-JP"], "a\x80", "\x80")
assert_econv("abc", :invalid_byte_sequence, 100, ["UTF-8", "EUC-JP"], "abc\xFF", "def")
assert_econv("abc", :invalid_byte_sequence, 100, ["Shift_JIS", "EUC-JP"], "abc\xFF", "def")
assert_econv("abc", :invalid_byte_sequence, 100, ["ISO-2022-JP", "EUC-JP"], "abc\xFF", "def")
end
def test_invalid2
ec = Encoding::Converter.new("Shift_JIS", "EUC-JP")
a = ["", "abc\xFFdef", ec, nil, 1]
check_ec("a", "c\xFFdef", :destination_buffer_full, *a)
check_ec("ab", "\xFFdef", :destination_buffer_full, *a)
check_ec("abc", "def", :invalid_byte_sequence, *a)
check_ec("abcd", "f", :destination_buffer_full, *a)
check_ec("abcde", "", :destination_buffer_full, *a)
check_ec("abcdef", "", :finished, *a)
end
def test_invalid3
ec = Encoding::Converter.new("Shift_JIS", "EUC-JP")
a = ["", "abc\xFFdef", ec, nil, 10]
check_ec("abc", "def", :invalid_byte_sequence, *a)
check_ec("abcdef", "", :finished, *a)
end
def test_invalid4
ec = Encoding::Converter.new("Shift_JIS", "EUC-JP")
a = ["", "abc\xFFdef", ec, nil, 10, Encoding::Converter::OUTPUT_FOLLOWED_BY_INPUT]
check_ec("a", "bc\xFFdef", :output_followed_by_input, *a)
check_ec("ab", "c\xFFdef", :output_followed_by_input, *a)
check_ec("abc", "\xFFdef", :output_followed_by_input, *a)
check_ec("abc", "def", :invalid_byte_sequence, *a)
check_ec("abcd", "ef", :output_followed_by_input, *a)
check_ec("abcde", "f", :output_followed_by_input, *a)
check_ec("abcdef", "", :output_followed_by_input, *a)
check_ec("abcdef", "", :finished, *a)
end
def test_errors
ec = Encoding::Converter.new("UTF-16BE", "EUC-JP")
a = ["", "\xFF\xFE\x00A\xDC\x00\x00B", ec, nil, 10]
check_ec("", "\x00A\xDC\x00\x00B", :undefined_conversion, *a)
check_ec("A", "\x00B", :invalid_byte_sequence, *a) # \xDC\x00 is invalid as UTF-16BE
check_ec("AB", "", :finished, *a)
end
def test_errors2
ec = Encoding::Converter.new("UTF-16BE", "EUC-JP")
a = ["", "\xFF\xFE\x00A\xDC\x00\x00B", ec, nil, 10, Encoding::Converter::OUTPUT_FOLLOWED_BY_INPUT]
check_ec("", "\x00A\xDC\x00\x00B", :undefined_conversion, *a)
check_ec("A", "\xDC\x00\x00B", :output_followed_by_input, *a)
check_ec("A", "\x00B", :invalid_byte_sequence, *a)
check_ec("AB", "", :output_followed_by_input, *a)
check_ec("AB", "", :finished, *a)
end
def test_universal_newline
ec = Encoding::Converter.new("UTF-8", "EUC-JP", Encoding::Converter::UNIVERSAL_NEWLINE_DECODER)
a = ["", src="", ec, nil, 50, Encoding::Converter::PARTIAL_INPUT]
src << "abc\r\ndef"; check_ec("abc\ndef", "", :source_buffer_empty, *a)
src << "ghi\njkl"; check_ec("abc\ndefghi\njkl", "", :source_buffer_empty, *a)
src << "mno\rpqr"; check_ec("abc\ndefghi\njklmno\npqr", "", :source_buffer_empty, *a)
src << "stu\r"; check_ec("abc\ndefghi\njklmno\npqrstu\n", "", :source_buffer_empty, *a)
src << "\nvwx"; check_ec("abc\ndefghi\njklmno\npqrstu\nvwx", "", :source_buffer_empty, *a)
src << "\nyz"; check_ec("abc\ndefghi\njklmno\npqrstu\nvwx\nyz", "", :source_buffer_empty, *a)
end
def test_crlf_newline
ec = Encoding::Converter.new("UTF-8", "EUC-JP", Encoding::Converter::CRLF_NEWLINE_ENCODER)
assert_econv("abc\r\ndef", :finished, 50, ec, "abc\ndef", "")
end
def test_cr_newline
ec = Encoding::Converter.new("UTF-8", "EUC-JP", Encoding::Converter::CR_NEWLINE_ENCODER)
assert_econv("abc\rdef", :finished, 50, ec, "abc\ndef", "")
end
def test_output_followed_by_input
ec = Encoding::Converter.new("UTF-8", "EUC-JP")
a = ["", "abc\u{3042}def", ec, nil, 100, Encoding::Converter::OUTPUT_FOLLOWED_BY_INPUT]
check_ec("a", "bc\u{3042}def", :output_followed_by_input, *a)
check_ec("ab", "c\u{3042}def", :output_followed_by_input, *a)
check_ec("abc", "\u{3042}def", :output_followed_by_input, *a)
check_ec("abc\xA4\xA2", "def", :output_followed_by_input, *a)
check_ec("abc\xA4\xA2d", "ef", :output_followed_by_input, *a)
check_ec("abc\xA4\xA2de", "f", :output_followed_by_input, *a)
check_ec("abc\xA4\xA2def", "", :output_followed_by_input, *a)
check_ec("abc\xA4\xA2def", "", :finished, *a)
end
end
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