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require 'test/unit'
require 'tmpdir'
class TestIO_M17N < Test::Unit::TestCase
ENCS = [
Encoding::ASCII_8BIT,
Encoding::EUC_JP,
Encoding::Shift_JIS,
Encoding::UTF_8
]
def with_tmpdir
Dir.mktmpdir {|dir|
Dir.chdir(dir) {
yield dir
}
}
end
def with_pipe(enc=nil)
r, w = IO.pipe(enc)
begin
yield r, w
ensure
r.close if !r.closed?
w.close if !w.closed?
end
end
def generate_file(path, content)
open(path, "wb") {|f| f.write content }
end
def encdump(str)
"#{str.dump}.force_encoding(#{str.encoding.name.dump})"
end
def assert_str_equal(expected, actual, message=nil)
full_message = build_message(message, <<EOT)
#{encdump expected} expected but not equal to
#{encdump actual}.
EOT
assert_block(full_message) { expected == actual }
end
def test_terminator_conversion
with_tmpdir {
generate_file('tmp', "before \u00FF after")
s = open("tmp", "r:utf-8:iso-8859-1") {|f|
f.gets("\xFF".force_encoding("iso-8859-1"))
}
assert_equal(Encoding.find("iso-8859-1"), s.encoding)
assert_str_equal("before \xFF".force_encoding("iso-8859-1"), s, '[ruby-core:14288]')
}
end
def test_terminator_conversion2
with_tmpdir {
generate_file('tmp', "before \xA1\xA2\xA2\xA3 after")
s = open("tmp", "r:euc-jp:utf-8") {|f|
f.gets("\xA2\xA2".force_encoding("euc-jp").encode("utf-8"))
}
assert_equal(Encoding.find("euc-jp"), s.encoding)
assert_str_equal("before \xA1\xA2\xA2\xA3 after".force_encoding("iso-8859-1"), s, '[ruby-core:14319]')
}
end
def test_open_ascii
with_tmpdir {
src = "abc\n"
generate_file('tmp', "abc\n")
ENCS.each {|enc|
s = open('tmp', "r:#{enc}") {|f| f.gets }
assert_equal(enc, s.encoding)
assert_str_equal(src, s)
}
}
end
def test_open_nonascii
with_tmpdir {
src = "\xc2\xa1\n"
generate_file('tmp', src)
ENCS.each {|enc|
content = src.dup.force_encoding(enc)
s = open('tmp', "r:#{enc}") {|f| f.gets }
assert_equal(enc, s.encoding)
assert_str_equal(content, s)
}
}
end
def test_read_encoding
with_tmpdir {
src = "\xc2\xa1\n".force_encoding("ASCII-8BIT")
generate_file('tmp', "\xc2\xa1\n")
ENCS.each {|enc|
content = src.dup.force_encoding(enc)
open('tmp', "r:#{enc}") {|f|
s = f.getc
assert_equal(enc, s.encoding)
assert_str_equal(content[0], s)
}
open('tmp', "r:#{enc}") {|f|
s = f.readchar
assert_equal(enc, s.encoding)
assert_str_equal(content[0], s)
}
open('tmp', "r:#{enc}") {|f|
s = f.gets
assert_equal(enc, s.encoding)
assert_str_equal(content, s)
}
open('tmp', "r:#{enc}") {|f|
s = f.readline
assert_equal(enc, s.encoding)
assert_str_equal(content, s)
}
open('tmp', "r:#{enc}") {|f|
lines = f.readlines
assert_equal(1, lines.length)
s = lines[0]
assert_equal(enc, s.encoding)
assert_str_equal(content, s)
}
open('tmp', "r:#{enc}") {|f|
f.each_line {|s|
assert_equal(enc, s.encoding)
assert_str_equal(content, s)
}
}
open('tmp', "r:#{enc}") {|f|
s = f.read
assert_equal(enc, s.encoding)
assert_str_equal(content, s)
}
open('tmp', "r:#{enc}") {|f|
s = f.read(1)
assert_equal(Encoding::ASCII_8BIT, s.encoding)
assert_str_equal(src[0], s)
}
open('tmp', "r:#{enc}") {|f|
s = f.readpartial(1)
assert_equal(Encoding::ASCII_8BIT, s.encoding)
assert_str_equal(src[0], s)
}
open('tmp', "r:#{enc}") {|f|
s = f.sysread(1)
assert_equal(Encoding::ASCII_8BIT, s.encoding)
assert_str_equal(src[0], s)
}
}
}
end
def test_write_noenc
src = "\xc2\xa1\n"
with_tmpdir {
open('tmp', "w") {|f|
ENCS.each {|enc|
f.write src.dup.force_encoding(enc)
}
}
open('tmp', 'rb') {|f|
assert_equal(src*ENCS.length, f.read)
}
}
end
def test_write_conversion
utf8 = "\u6666"
eucjp = "\xb3\xa2".force_encoding("EUC-JP")
with_tmpdir {
open('tmp', "w:EUC-JP") {|f|
assert_equal(Encoding::EUC_JP, f.external_encoding)
assert_equal(nil, f.internal_encoding)
f.print utf8
}
assert_equal(eucjp, File.read('tmp').force_encoding("EUC-JP"))
open('tmp', 'r:EUC-JP:UTF-8') {|f|
assert_equal(Encoding::EUC_JP, f.external_encoding)
assert_equal(Encoding::UTF_8, f.internal_encoding)
assert_equal(utf8, f.read)
}
}
end
def test_pipe
utf8 = "\u6666"
eucjp = "\xb3\xa2".force_encoding("EUC-JP")
with_pipe {|r,w|
assert_equal(Encoding.default_external, r.external_encoding)
assert_equal(nil, r.internal_encoding)
w << utf8
w.close
s = r.read
assert_equal(Encoding.default_external, s.encoding)
puts encdump(s)
puts encdump(utf8)
assert_str_equal(utf8, s)
}
with_pipe("EUC-JP") {|r,w|
assert_equal(Encoding::EUC_JP, r.external_encoding)
assert_equal(nil, r.internal_encoding)
w << eucjp
w.close
assert_equal(eucjp, r.read)
}
with_pipe("UTF-8:EUC-JP") {|r,w|
assert_equal(Encoding::UTF_8, r.external_encoding)
assert_equal(Encoding::EUC_JP, r.internal_encoding)
w << utf8
w.close
assert_equal(eucjp, r.read)
}
ENCS.each {|enc|
with_pipe(enc) {|r, w|
w << "\xc2\xa1"
w.close
s = r.getc
assert_equal(enc, s.encoding)
}
}
end
end
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