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import std/encodings
import std/assertions
var fromGBK = open("utf-8", "gbk")
var toGBK = open("gbk", "utf-8")
var fromGB2312 = open("utf-8", "gb2312")
var toGB2312 = open("gb2312", "utf-8")
block:
let data = "\215\237\186\243\178\187\214\170\204\236\212\218\203\174\163\172\194\250\180\178\208\199\195\206\209\185\208\199\186\211"
doAssert fromGBK.convert(data) == "醉后不知天在水，满床星梦压星河"
block:
let data = "万两黄金容易得，知心一个也难求"
doAssert toGBK.convert(data) == "\205\242\193\189\187\198\189\240\200\221\210\215\181\195\163\172\214\170\208\196\210\187\184\246\210\178\196\209\199\243"
block:
let data = "\215\212\208\197\200\203\201\250\182\254\176\217\196\234\163\172\187\225\181\177\203\174\187\247\200\253\199\167\192\239"
doAssert fromGB2312.convert(data) == "自信人生二百年，会当水击三千里"
block:
let data = "谁怕？一蓑烟雨任平生"
doAssert toGB2312.convert(data) == "\203\173\197\194\163\191\210\187\203\242\209\204\211\234\200\206\198\189\201\250"
when defined(windows):
block should_throw_on_unsupported_conversions:
let original = "some string"
doAssertRaises(EncodingError):
discard convert(original, "utf-8", "utf-32")
doAssertRaises(EncodingError):
discard convert(original, "utf-8", "unicodeFFFE")
doAssertRaises(EncodingError):
discard convert(original, "utf-8", "utf-32BE")
doAssertRaises(EncodingError):
discard convert(original, "unicodeFFFE", "utf-8")
doAssertRaises(EncodingError):
discard convert(original, "utf-32", "utf-8")
doAssertRaises(EncodingError):
discard convert(original, "utf-32BE", "utf-8")
block should_convert_from_utf16_to_utf8:
let original = "\x42\x04\x35\x04\x41\x04\x42\x04" # utf-16 little endian test string "тест"
let result = convert(original, "utf-8", "utf-16")
doAssert(result == "\xd1\x82\xd0\xb5\xd1\x81\xd1\x82")
block should_convert_from_utf16_to_win1251:
let original = "\x42\x04\x35\x04\x41\x04\x42\x04" # utf-16 little endian test string "тест"
let result = convert(original, "windows-1251", "utf-16")
doAssert(result == "\xf2\xe5\xf1\xf2")
block should_convert_from_win1251_to_koi8r:
let original = "\xf2\xe5\xf1\xf2" # win1251 test string "тест"
let result = convert(original, "koi8-r", "windows-1251")
doAssert(result == "\xd4\xc5\xd3\xd4")
block should_convert_from_koi8r_to_win1251:
let original = "\xd4\xc5\xd3\xd4" # koi8r test string "тест"
let result = convert(original, "windows-1251", "koi8-r")
doAssert(result == "\xf2\xe5\xf1\xf2")
block should_convert_from_utf8_to_win1251:
let original = "\xd1\x82\xd0\xb5\xd1\x81\xd1\x82" # utf-8 test string "тест"
let result = convert(original, "windows-1251", "utf-8")
doAssert(result == "\xf2\xe5\xf1\xf2")
block should_convert_from_utf8_to_utf16:
let original = "\xd1\x82\xd0\xb5\xd1\x81\xd1\x82" # utf-8 test string "тест"
let result = convert(original, "utf-16", "utf-8")
doAssert(result == "\x42\x04\x35\x04\x41\x04\x42\x04")
block should_handle_empty_string_for_any_conversion:
let original = ""
var result = convert(original, "utf-16", "utf-8")
doAssert(result == "")
result = convert(original, "utf-8", "utf-16")
doAssert(result == "")
result = convert(original, "windows-1251", "koi8-r")
doAssert(result == "")
block:
let
orig = "öäüß"
cp1252 = convert(orig, "CP1252", "UTF-8")
ibm850 = convert(cp1252, "ibm850", "CP1252")
current = getCurrentEncoding()
doAssert orig == "\195\182\195\164\195\188\195\159"
doAssert ibm850 == "\148\132\129\225"
doAssert convert(ibm850, current, "ibm850") == orig
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