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require 'test/unit'
class TestM17N < Test::Unit::TestCase
def assert_encoding(encname, actual, message=nil)
assert_equal(Encoding.find(encname), actual, message)
end
def a(str) str.force_encoding("ASCII-8BIT") end
def e(str) str.force_encoding("EUC-JP") end
def s(str) str.force_encoding("Shift_JIS") end
def u(str) str.force_encoding("UTF-8") end
def test_string_ascii_literal
assert_encoding("ASCII-8BIT", eval(a(%{""})).encoding)
assert_encoding("ASCII-8BIT", eval(a(%{"a"})).encoding)
end
def test_string_euc_literal
assert_encoding("ASCII-8BIT", eval(e(%{""})).encoding)
assert_encoding("ASCII-8BIT", eval(e(%{"a"})).encoding)
assert_encoding("EUC-JP", eval(e(%{"\xa1\xa1"})).encoding)
assert_encoding("EUC-JP", eval(e(%{"\\xa1\\xa1"})).encoding)
assert_encoding("ASCII-8BIT", eval(e(%{"\\x20"})).encoding)
assert_encoding("ASCII-8BIT", eval(e(%{"\\n"})).encoding)
assert_encoding("EUC-JP", eval(e(%{"\\x80"})).encoding)
end
def test_regexp_too_short_multibyte_character
assert_raise(SyntaxError) { eval('/\xfe/e') }
assert_raise(SyntaxError) { eval('/\x8e/e') }
assert_raise(SyntaxError) { eval('/\x8f/e') }
assert_raise(SyntaxError) { eval('/\x8f\xa1/e') }
assert_raise(SyntaxError) { eval('/\xef/s') }
assert_raise(SyntaxError) { eval('/\xc0/u') }
assert_raise(SyntaxError) { eval('/\xe0\x80/u') }
assert_raise(SyntaxError) { eval('/\xf0\x80\x80/u') }
assert_raise(SyntaxError) { eval('/\xf8\x80\x80\x80/u') }
assert_raise(SyntaxError) { eval('/\xfc\x80\x80\x80\x80/u') }
# raw 8bit
#assert_raise(SyntaxError) { eval("/\xfe/e") }
#assert_raise(SyntaxError) { eval("/\xc0/u") }
# invalid suffix
#assert_raise(SyntaxError) { eval('/\xc0\xff/u') }
#assert_raise(SyntaxError) { eval('/\xc0\x20/u') }
end
def test_regexp_generic
r = /a/
assert_encoding("ASCII-8BIT", r.encoding)
assert_equal(0, r =~ a("a"))
assert_equal(0, r =~ e("a"))
assert_equal(0, r =~ s("a"))
assert_equal(0, r =~ u("a"))
# "\xc0\xa1" is a valid sequence for ASCII-8BIT, EUC-JP, Shift_JIS and UTF-8.
assert_equal(nil, r =~ a("\xc0\xa1"))
assert_equal(nil, r =~ e("\xc0\xa1"))
assert_equal(nil, r =~ s("\xc0\xa1"))
assert_equal(nil, r =~ u("\xc0\xa1"))
r = eval(a(%{/\xc0\xa1/}))
assert_encoding("ASCII-8BIT", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_equal(0, r =~ a("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ e("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
# xxx: /\xc0\xa1/ should be restricted only for ASCII-8BIT?
# r = /\xc0\xa1/
# assert_encoding("ASCII-8BIT", r.encoding)
# assert_equal(nil, r =~ a("a"))
# assert_equal(nil, r =~ e("a"))
# assert_equal(nil, r =~ s("a"))
# assert_equal(nil, r =~ u("a"))
# assert_equal(0, r =~ a("\xc0\xa1"))
# assert_equal(0, r =~ e("\xc0\xa1")) # xxx
# assert_equal(0, r =~ s("\xc0\xa1")) # xxx
# assert_equal(0, r =~ u("\xc0\xa1")) # xxx
end
def test_regexp_ascii
r = /a/n
assert_encoding("ASCII-8BIT", r.encoding)
assert_equal(0, r =~ a("a"))
assert_equal(0, r =~ e("a"))
assert_equal(0, r =~ s("a"))
assert_equal(0, r =~ u("a"))
assert_equal(nil, r =~ a("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ e("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
r = /\xc0\xa1/n
assert_encoding("ASCII-8BIT", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_equal(0, r =~ a("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ e("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
r = eval(%{/\xc0\xa1/n}.force_encoding("ASCII-8BIT"))
assert_encoding("ASCII-8BIT", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_equal(0, r =~ a("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ e("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
r = eval(%q{/\xc0\xa1/}.force_encoding("ASCII-8BIT"))
assert_encoding("ASCII-8BIT", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_equal(0, r =~ a("\xc0\xa1"))
# assert_raise(ArgumentError) { r =~ e("\xc0\xa1") }
# assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
# assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
end
def test_regexp_euc
r = /a/e
assert_encoding("EUC-JP", r.encoding)
assert_equal(0, r =~ a("a"))
assert_equal(0, r =~ e("a"))
assert_equal(0, r =~ s("a"))
assert_equal(0, r =~ u("a"))
assert_raise(ArgumentError) { r =~ a("\xc0\xa1") }
assert_equal(nil, r =~ e("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
r = /\xc0\xa1/e
assert_encoding("EUC-JP", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_raise(ArgumentError) { r =~ a("\xc0\xa1") }
assert_equal(0, r =~ e("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
r = eval(%{/\xc0\xa1/}.force_encoding("EUC-JP"))
assert_encoding("EUC-JP", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_raise(ArgumentError) { r =~ a("\xc0\xa1") }
assert_equal(0, r =~ e("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
r = eval(%q{/\xc0\xa1/}.force_encoding("EUC-JP"))
assert_encoding("EUC-JP", r.encoding)
assert_equal(nil, r =~ a("a"))
assert_equal(nil, r =~ e("a"))
assert_equal(nil, r =~ s("a"))
assert_equal(nil, r =~ u("a"))
assert_raise(ArgumentError) { r =~ a("\xc0\xa1") }
assert_equal(0, r =~ e("\xc0\xa1"))
assert_raise(ArgumentError) { r =~ s("\xc0\xa1") }
assert_raise(ArgumentError) { r =~ u("\xc0\xa1") }
end
def test_begin_end_offset
str = e("\244\242\244\244\244\246\244\250\244\252a")
assert(/(a)/ =~ str)
assert_equal("a", $&)
assert_equal(5, $~.begin(0))
assert_equal(6, $~.end(0))
assert_equal([5,6], $~.offset(0))
assert_equal(5, $~.begin(1))
assert_equal(6, $~.end(1))
assert_equal([5,6], $~.offset(1))
end
def test_begin_end_offset_sjis
str = s("\x81@@")
assert(/@/ =~ str)
assert_equal(s("\x81@"), $`)
assert_equal("@", $&)
assert_equal("", $')
assert_equal([1,2], $~.offset(0))
end
end
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