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/* __ *\
** ________ ___ / / ___ __ ____ Scala.js Test Suite **
** / __/ __// _ | / / / _ | __ / // __/ (c) 2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \ http://scala-js.org/ **
** /____/\___/_/ |_/____/_/ | |__/ /____/ **
** |/____/ **
\* */
package scala.scalajs.testsuite.niocharset
import java.nio._
import java.nio.charset._
import scala.scalajs.niocharset.StandardCharsets
import BaseCharsetTest._
object UTF8Test extends BaseCharsetTest(StandardCharsets.UTF_8) {
describe("UTF-8") {
it("decode") {
def OutSeq(elems: OutPart[CharBuffer]*): Seq[OutPart[CharBuffer]] =
Seq[OutPart[CharBuffer]](elems: _*)
// 1-byte characters
testDecode(bb"42 6f 6e 6a 6f 75 72")(cb"Bonjour")
// 2-byte characters
testDecode(bb"47 72 c3 bc c3 9f 20 47 6f 74 74")(cb"Grüß Gott")
testDecode(bb"ce 9a ce b1 ce bb ce b7 ce bc ce ad cf 81 ce b1")(cb"Καλημέρα")
testDecode(bb"d8 b5 d8 a8 d8 a7 d8 ad 20 d8 a7 d9 84 d8 ae d9 8a d8 b1")(cb"صباح الخير")
// 3-byte characters
testDecode(bb"e3 81 93 e3 82 93 e3 81 ab e3 81 a1 e3 81 af")(cb"こんにちは")
testDecode(bb"d0 94 d0 be d0 b1 d1 80 d1 8b d0 b9 20 d0 b4 d0 b5 d0 bd d1 8c")(cb"Добрый день")
testDecode(bb"e4 bd a0 e5 a5 bd")(cb"你好")
// 4-byte characters
testDecode(bb"f0 9d 93 97 f0 9d 93 ae f0 9d 93 b5 f0 9d 93 b5 f0 9d 93 b8")(
cb"\ud835\udcd7\ud835\udcee\ud835\udcf5\ud835\udcf5\ud835\udcf8")
testDecode(bb"")(cb"")
// First sequence of a certain length
testDecode(bb"00")(cb"\u0000")
testDecode(bb"c2 80")(cb"\u0080")
testDecode(bb"e0 a0 80")(cb"\u0800")
testDecode(bb"f0 90 80 80")(cb"\ud800\udc00")
// Last sequence of a certain length
testDecode(bb"7f")(cb"\u007f")
testDecode(bb"df bf")(cb"\u07ff")
testDecode(bb"ef bf bf")(cb"\uffff")
testDecode(bb"f4 8f bf bf")(cb"\udbff\udfff")
// Other boundary conditions
testDecode(bb"ed 9f bf")(cb"\ud7ff")
testDecode(bb"ee 80 80")(cb"\ue000")
testDecode(bb"ef bf bd")(cb"\ufffd")
// Here begin the sequences with at least one error
// Code point too big
testDecode(bb"f4 90 80 80")(Malformed(4))
testDecode(bb"41 f4 90 80 80 42")(cb"A", Malformed(4), cb"B")
// Unexpected continuation bytes (each is reported separately)
testDecode(bb"80")(Malformed(1))
testDecode(bb"bf")(Malformed(1))
testDecode(bb"80 80")(Malformed(1), Malformed(1))
testDecode(bb"80 80 80")(Malformed(1), Malformed(1), Malformed(1))
testDecode(bb"80 80 80 80")(Malformed(1), Malformed(1), Malformed(1), Malformed(1))
testDecode(bb"80 80 80 80 80")(Malformed(1), Malformed(1), Malformed(1), Malformed(1), Malformed(1))
testDecode(bb"41 80 80 42 80 43")(cb"A", Malformed(1), Malformed(1), cb"B", Malformed(1), cb"C")
// Lonely start characters, separated by spaces
/* We add 2 spaces at the end so that the last 4-byte start does not
* swallow the last space as an underflow. */
testDecode(bb"${(0xc0 to 0xf4).flatMap(c => Seq(c, 32)) ++ Seq[Byte](32, 32)}")(
(0xc0 to 0xf4).flatMap(i => OutSeq(Malformed(1), cb" ")) ++ OutSeq(cb" "): _*)
// Now we let it swallow the last space
testDecode(bb"${Seq[Byte](32) ++ (0xc0 to 0xf4).flatMap(c => Seq(c, 32))}")(
(0xc0 to 0xf4).flatMap(i => OutSeq(cb" ", Malformed(1))): _*)
// Sequences with some continuation bytes missing
testDecode(bb"c2")(Malformed(1))
testDecode(bb"e0")(Malformed(1))
testDecode(bb"e0 a0")(Malformed(2))
testDecode(bb"f0")(Malformed(1))
testDecode(bb"f0 90")(Malformed(2))
testDecode(bb"f0 90 80")(Malformed(3))
// and all of them concatenated
testDecode(bb"c2 e0 e0 a0 f0 f0 90 f0 90 80")(
Seq(1, 1, 2, 1, 2, 3).map(Malformed(_)): _*)
// and with normal sequences interspersed
testDecode(bb"c2 41 e0 41 e0 a0 41 f0 41 f0 90 41 f0 90 80 41")(
Seq(1, 1, 2, 1, 2, 3).flatMap(l => Seq[OutPart[CharBuffer]](Malformed(l), cb"A")): _*)
// Impossible bytes
testDecode(bb"fe")(Malformed(1))
testDecode(bb"ff")(Malformed(1))
testDecode(bb"fe fe ff ff")(Malformed(1), Malformed(1), Malformed(1), Malformed(1))
// Old 5-byte and 6-byte starts
testDecode(bb"f8 80 80 80 af")(
Malformed(1), Malformed(1), Malformed(1), Malformed(1), Malformed(1))
testDecode(bb"fc 80 80 80 80 af")(
Malformed(1), Malformed(1), Malformed(1), Malformed(1), Malformed(1), Malformed(1))
// Overlong sequences (encoded with more bytes than necessary)
// Overlong '/'
testDecode(bb"c0 af")(Malformed(2))
testDecode(bb"e0 80 af")(Malformed(3))
testDecode(bb"f0 80 80 af")(Malformed(4))
// Maximum overlong sequences
testDecode(bb"c1 bf")(Malformed(2))
testDecode(bb"e0 9f bf")(Malformed(3))
testDecode(bb"f0 8f bf bf")(Malformed(4))
// Overlong NUL
testDecode(bb"c0 80")(Malformed(2))
testDecode(bb"e0 80 80")(Malformed(3))
testDecode(bb"f0 80 80 80")(Malformed(4))
// Single UTF-16 surrogates
testDecode(bb"ed a0 80")(Malformed(3))
testDecode(bb"ed ad bf")(Malformed(3))
testDecode(bb"ed ae 80")(Malformed(3))
testDecode(bb"ed af bf")(Malformed(3))
testDecode(bb"ed b0 80")(Malformed(3))
testDecode(bb"ed be 80")(Malformed(3))
testDecode(bb"ed bf bf")(Malformed(3))
// Paired UTF-16 surrogates
testDecode(bb"ed a0 80 ed b0 80")(Malformed(3), Malformed(3))
testDecode(bb"ed a0 80 ed bf bf")(Malformed(3), Malformed(3))
testDecode(bb"ed ad bf ed b0 80")(Malformed(3), Malformed(3))
testDecode(bb"ed ad bf ed bf bf")(Malformed(3), Malformed(3))
testDecode(bb"ed ae 80 ed b0 80")(Malformed(3), Malformed(3))
testDecode(bb"ed ae 80 ed bf bf")(Malformed(3), Malformed(3))
testDecode(bb"ed af bf ed b0 80")(Malformed(3), Malformed(3))
testDecode(bb"ed af bf ed bf bf")(Malformed(3), Malformed(3))
}
it("encode") {
def OutSeq(elems: OutPart[ByteBuffer]*): Seq[OutPart[ByteBuffer]] =
Seq[OutPart[ByteBuffer]](elems: _*)
// 1-byte characters
testEncode(cb"Bonjour")(bb"42 6f 6e 6a 6f 75 72")
// 2-byte characters
testEncode(cb"Grüß Gott")(bb"47 72 c3 bc c3 9f 20 47 6f 74 74")
testEncode(cb"Καλημέρα")(bb"ce 9a ce b1 ce bb ce b7 ce bc ce ad cf 81 ce b1")
testEncode(cb"صباح الخير")(bb"d8 b5 d8 a8 d8 a7 d8 ad 20 d8 a7 d9 84 d8 ae d9 8a d8 b1")
// 3-byte characters
testEncode(cb"こんにちは")(bb"e3 81 93 e3 82 93 e3 81 ab e3 81 a1 e3 81 af")
testEncode(cb"Добрый день")(bb"d0 94 d0 be d0 b1 d1 80 d1 8b d0 b9 20 d0 b4 d0 b5 d0 bd d1 8c")
testEncode(cb"你好")(bb"e4 bd a0 e5 a5 bd")
// 4-byte characters
testEncode(cb"\ud835\udcd7\ud835\udcee\ud835\udcf5\ud835\udcf5\ud835\udcf8")(
bb"f0 9d 93 97 f0 9d 93 ae f0 9d 93 b5 f0 9d 93 b5 f0 9d 93 b8")
testEncode(cb"")(bb"")
// First sequence of a certain length
testEncode(cb"\u0000")(bb"00")
testEncode(cb"\u0080")(bb"c2 80")
testEncode(cb"\u0800")(bb"e0 a0 80")
testEncode(cb"\ud800\udc00")(bb"f0 90 80 80")
// Last sequence of a certain length
testEncode(cb"\u007f")(bb"7f")
testEncode(cb"\u07ff")(bb"df bf")
testEncode(cb"\uffff")(bb"ef bf bf")
testEncode(cb"\udbff\udfff")(bb"f4 8f bf bf")
// Other boundary conditions
testEncode(cb"\ud7ff")(bb"ed 9f bf")
testEncode(cb"\ue000")(bb"ee 80 80")
testEncode(cb"\ufffd")(bb"ef bf bd")
// Here begin the sequences with at least one error
// Single UTF-16 surrogates
testEncode(cb"\ud800")(Malformed(1))
testEncode(cb"\udaff")(Malformed(1))
testEncode(cb"\udb80")(Malformed(1))
testEncode(cb"\udbff")(Malformed(1))
testEncode(cb"\udc00")(Malformed(1))
testEncode(cb"\udf80")(Malformed(1))
testEncode(cb"\udfff")(Malformed(1))
// High UTF-16 surrogates not followed by low surrogates
testEncode(cb"\ud800A")(Malformed(1), bb"41")
testEncode(cb"\ud800\ud800")(Malformed(1), Malformed(1))
testEncode(cb"\ud800\ud835\udcd7")(Malformed(1), bb"f0 9d 93 97")
testEncode(cb"\udbffA")(Malformed(1), bb"41")
testEncode(cb"\udbff\udb8f")(Malformed(1), Malformed(1))
testEncode(cb"\udbff\ud835\udcd7")(Malformed(1), bb"f0 9d 93 97")
}
it("isLegalReplacement") {
val encoder = charset.newEncoder
// The good ones
expect(encoder.isLegalReplacement(Array(0x00.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(Array(0x41.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(Array('?'.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(Array(0x7f.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(
Array(0xc2.toByte, 0x80.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(
Array(0xdf.toByte, 0xbf.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(
Array(0xe0.toByte, 0xa0.toByte, 0x80.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(
Array(0xef.toByte, 0xbf.toByte, 0xbf.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(
Array(0xf0.toByte, 0x90.toByte, 0x80.toByte, 0x80.toByte))).toBeTruthy
expect(encoder.isLegalReplacement(
Array(0xf4.toByte, 0x8f.toByte, 0xbf.toByte, 0xbf.toByte))).toBeTruthy
// The bad ones
expect(encoder.isLegalReplacement(Array(0x80.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(Array(0xbf.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(Array(0xc2.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(Array(0xdf.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(Array(0xe0.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(Array(0xef.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(Array(0xf4.toByte))).toBeFalsy
expect(encoder.isLegalReplacement(
Array(0xe0.toByte, 0x80.toByte))).toBeFalsy
}
}
}
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