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linux-packaging-mono/mcs/class/corlib/Test/System.Text/Latin1EncodingTest.cs
Xamarin Public Jenkins (auto-signing) e46a49ecf1 Imported Upstream version 5.10.0.47
Former-commit-id: d0813289fa2d35e1f8ed77530acb4fb1df441bc0
2018-01-24 17:04:36 +00:00

511 lines
14 KiB
C#

//
// Latin1EncodingTest.cs
//
// Author:
// Alexander Köplinger (alexander.koeplinger@xamarin.com)
//
// Copyright (C) 2016 Xamarin, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Text;
using NUnit.Framework;
using NUnit.Framework.Constraints;
namespace MonoTests.System.Text
{
//
// NOTE: when adding/updating tests here consider updating
// the following files as well since they have similar tests:
//
// - mcs/class/corlib/Test/System.Text/ASCIIEncodingTest.cs
// - mcs/class/I18N/EncodingTestBase.cs
//
[TestFixture]
public class Latin1EncodingTest
{
private char[] testchars;
private byte[] testbytes;
[SetUp]
public void SetUp ()
{
testchars = new char[4];
testchars[0] = 'T';
testchars[1] = 'e';
testchars[2] = 's';
testchars[3] = 't';
testbytes = new byte[4];
testbytes[0] = (byte) 'T';
testbytes[1] = (byte) 'e';
testbytes[2] = (byte) 's';
testbytes[3] = (byte) 't';
}
[Test]
public void IsBrowserDisplay ()
{
Assert.IsTrue (Encoding.GetEncoding ("latin1").IsBrowserDisplay);
}
[Test]
public void IsBrowserSave ()
{
Assert.IsTrue (Encoding.GetEncoding ("latin1").IsBrowserSave);
}
[Test]
public void IsMailNewsDisplay ()
{
Assert.IsTrue (Encoding.GetEncoding ("latin1").IsMailNewsDisplay);
}
[Test]
public void IsMailNewsSave ()
{
Assert.IsTrue (Encoding.GetEncoding ("latin1").IsMailNewsSave);
}
[Test] // Test GetBytes(char[])
public void TestGetBytes1 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
byte[] bytes = latin1_encoding.GetBytes(testchars);
for (int i = 0; i < testchars.Length; i++)
Assert.AreEqual (testchars[i], (char) bytes[i]);
}
[Test] // Test GetBytes(char[], int, int)
public void TestGetBytes2 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
byte[] bytes = latin1_encoding.GetBytes(testchars, 1, 1);
Assert.AreEqual (1, bytes.Length, "#1");
Assert.AreEqual (testchars [1], (char) bytes [0], "#2");
}
[Test] // Test non-Latin1 char in char[]
public void TestGetBytes3 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
testchars[2] = (char) 0x100;
byte[] bytes = latin1_encoding.GetBytes(testchars);
Assert.AreEqual ('T', (char) bytes [0], "#1");
Assert.AreEqual ('e', (char) bytes [1], "#2");
Assert.AreEqual ('A', (char) bytes [2], "#3");
Assert.AreEqual ('t', (char) bytes [3], "#4");
}
[Test] // Test GetBytes(char[], int, int, byte[], int)
public void TestGetBytes4 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
byte[] bytes = new Byte[1];
int cnt = latin1_encoding.GetBytes(testchars, 1, 1, bytes, 0);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testchars [1], (char) bytes [0], "#2");
}
[Test] // Test GetBytes(string, int, int, byte[], int)
public void TestGetBytes5 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
byte[] bytes = new Byte[1];
int cnt = latin1_encoding.GetBytes("Test", 1, 1, bytes, 0);
Assert.AreEqual ('e', (char) bytes [0], "#1");
}
[Test] // Test GetBytes(string)
public void TestGetBytes6 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
byte[] bytes = latin1_encoding.GetBytes("Test");
for (int i = 0; i < testchars.Length; i++)
Assert.AreEqual (testchars [i], (char) bytes [i]);
}
[Test] // Test GetBytes(string)
public void TestGetBytes7 ()
{
var latin1_encoding = Encoding.GetEncoding ("latin1");
var expected = new byte [] { 0x3F, 0x20, 0x3F, 0x20, 0x3F };
var actual = latin1_encoding.GetBytes("\u24c8 \u2075 \u221e"); // normal replacement
Assert.AreEqual (expected, actual, "#1");
expected = new byte [] { 0x3F, 0x3F };
actual = latin1_encoding.GetBytes("\ud83d\ude0a"); // surrogate pair replacement
Assert.AreEqual (expected, actual, "#2");
expected = new byte [] { 0x3F, 0x3F, 0x20 };
actual = latin1_encoding.GetBytes("\ud83d\ude0a "); // surrogate pair replacement
Assert.AreEqual (expected, actual, "#3");
expected = new byte [] { 0x20, 0x20, 0x3F, 0x3F, 0x20, 0x20 };
actual = latin1_encoding.GetBytes(" \ud83d\ude0a "); // surrogate pair replacement
Assert.AreEqual (expected, actual, "#4");
expected = new byte [] { 0x20, 0x20, 0x3F, 0x3F, 0x20, 0x20 };
actual = latin1_encoding.GetBytes(" \ud834\udd1e "); // surrogate pair replacement
Assert.AreEqual (expected, actual, "#5");
expected = new byte [] { 0x41, 0x42, 0x43, 0x00, 0x41, 0x42, 0x43 };
actual = latin1_encoding.GetBytes("ABC\0ABC"); // embedded zero byte not replaced
Assert.AreEqual (expected, actual, "#6");
expected = new byte [] { 0x20, 0x20, 0x3F, 0x20, 0x20 };
actual = latin1_encoding.GetBytes(" \ud834 "); // invalid surrogate pair replacement
Assert.AreEqual (expected, actual, "#7");
}
[Test] // Test GetChars(byte[])
public void TestGetChars1 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
char[] chars = latin1_encoding.GetChars(testbytes);
for (int i = 0; i < testbytes.Length; i++)
Assert.AreEqual (testbytes[i], (byte) chars[i]);
}
[Test] // Test GetChars(byte[], int, int)
public void TestGetChars2 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
char[] chars = latin1_encoding.GetChars(testbytes, 1, 1);
Assert.AreEqual (1, chars.Length, "#1");
Assert.AreEqual (testbytes [1], (byte) chars [0], "#2");
}
[Test] // Test GetChars(byte[], int, int, char[], int)
public void TestGetChars4 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
char[] chars = new char[1];
int cnt = latin1_encoding.GetChars(testbytes, 1, 1, chars, 0);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testbytes [1], (byte) chars [0], "#2");
}
[Test] // Test GetString(char[])
public void TestGetString1 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
string str = latin1_encoding.GetString(testbytes);
Assert.AreEqual ("Test", str);
}
[Test] // Test GetString(char[], int, int)
public void TestGetString2 ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
string str = latin1_encoding.GetString(testbytes, 1, 2);
Assert.AreEqual ("es", str);
}
[Test] // Test Decoder
public void TestDecoder ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
char[] chars = new char[1];
int cnt = latin1_encoding.GetDecoder().GetChars(testbytes, 1, 1, chars, 0);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testbytes [1], (byte) chars [0], "#2");
}
[Test] // Test Decoder
public void TestEncoder ()
{
Encoding latin1_encoding = Encoding.GetEncoding ("latin1");
byte[] bytes = new Byte[1];
int cnt = latin1_encoding.GetEncoder().GetBytes(testchars, 1, 1, bytes, 0, false);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testchars [1], (char) bytes [0], "#2");
}
[Test]
public void TestZero ()
{
Encoding encoding = Encoding.GetEncoding ("latin1");
Assert.AreEqual (string.Empty, encoding.GetString (new byte [0]), "#1");
Assert.AreEqual (string.Empty, encoding.GetString (new byte [0], 0, 0), "#2");
}
[Test]
[ExpectedException (typeof (EncoderFallbackException))]
public void EncoderFallback ()
{
Encoding e = Encoding.GetEncoding ("latin1").Clone () as Encoding;
e.EncoderFallback = new EncoderExceptionFallback ();
e.GetBytes ("\u24c8");
}
[Test]
public void EncoderFallback2 ()
{
Encoding e = Encoding.GetEncoding ("latin1").Clone () as Encoding;
e.EncoderFallback = new BackslashEncoderReplaceFallback ();
byte[] bytes = e.GetBytes ("a\xac\u1234\u20ac\u8000");
var expected = new byte[] { 0x61, 0xAC, 0x5C, 0x75, 0x31, 0x32, 0x33, 0x34, 0x5C, 0x75, 0x32, 0x30, 0x61, 0x63, 0x5C, 0x75, 0x38, 0x30, 0x30, 0x30 };
Assert.AreEqual (expected, bytes);
bytes = e.GetBytes ("1\u04d92");
expected = new byte[] { 0x31, 0x5C, 0x75, 0x30, 0x34, 0x64, 0x39, 0x32 };
Assert.AreEqual (expected, bytes);
e.EncoderFallback = new EncoderExceptionOnWrongIndexFallback ('\u04d9', 1);
bytes = e.GetBytes ("1\u04d92");
expected = new byte[] { 0x31, 0x21, 0x32 };
Assert.AreEqual (expected, bytes);
e.EncoderFallback = new EncoderExceptionOnWrongIndexFallback ('\u04d9', 0);
bytes = e.GetBytes ("\u04d921");
expected = new byte[] { 0x21, 0x32, 0x31 };
Assert.AreEqual (expected, bytes);
}
[Test]
// [ExpectedException (typeof (ArgumentException))]
public void DecoderFallback2 ()
{
var bytes = new byte[] {
0x30, 0xa0, 0x31, 0xa8
};
var enc = (Encoding)Encoding.GetEncoding ("latin1").Clone ();
enc.DecoderFallback = new TestFallbackDecoder ();
var chars = new char [7];
var ret = enc.GetChars (bytes, 0, bytes.Length, chars, 0);
}
[Test]
public void DecoderFallback3 ()
{
var bytes = new byte[] {
0x30, 0xa0, 0x31, 0xa8
};
var enc = (Encoding)Encoding.GetEncoding ("latin1").Clone ();
enc.DecoderFallback = new TestFallbackDecoder ();
var chars = new char[] { '9', '8', '7', '6', '5' };
var ret = enc.GetChars (bytes, 0, bytes.Length, chars, 0);
Assert.That (ret, Is.EqualTo (4), "ret");
Assert.That (chars [0], Is.EqualTo ('0'), "chars[0]");
Assert.That (chars [1], Is.EqualTo ((char)0xA0), "chars[1]");
Assert.That (chars [2], Is.EqualTo ('1'), "chars[2]");
Assert.That (chars [3], Is.EqualTo ((char)0xA8), "chars[3]");
Assert.That (chars [4], Is.EqualTo ('5'), "chars[4]");
}
class TestFallbackDecoder : DecoderFallback {
const int count = 2;
public override int MaxCharCount {
get { return count; }
}
public override DecoderFallbackBuffer CreateFallbackBuffer ()
{
return new Buffer ();
}
class Buffer : DecoderFallbackBuffer {
char[] queue;
int index;
public override int Remaining {
get {
return queue.Length - index;
}
}
public override char GetNextChar ()
{
return index < queue.Length ? queue [index++] : '\0';
}
public override bool Fallback (byte[] bytes, int unused)
{
queue = new char[bytes.Length * count];
index = 0;
for (int i = 0; i < bytes.Length; i++) {
for (int j = 0; j < count; j++)
queue [index++] = (char)(bytes [i]+j);
}
return true;
}
public override bool MovePrevious ()
{
throw new NotImplementedException ();
}
public override void Reset ()
{
base.Reset ();
}
}
}
class BackslashEncoderReplaceFallback : EncoderFallback
{
class BackslashReplaceFallbackBuffer : EncoderFallbackBuffer
{
List<char> _buffer = new List<char> ();
int _index;
public override bool Fallback (char charUnknownHigh, char charUnknownLow, int index)
{
throw new NotImplementedException ();
return false;
}
public override bool Fallback (char charUnknown, int index)
{
_buffer.Add('\\');
int val = (int)charUnknown;
if (val > 0xFF) {
_buffer.Add ('u');
AddCharacter (val >> 8);
AddCharacter (val & 0xFF);
} else {
_buffer.Add ('x');
AddCharacter (charUnknown);
}
return true;
}
private void AddCharacter (int val)
{
AddOneDigit (((val) & 0xF0) >> 4);
AddOneDigit (val & 0x0F);
}
private void AddOneDigit (int val)
{
if (val > 9) {
_buffer.Add ((char)('a' + val - 0x0A));
} else {
_buffer.Add ((char)('0' + val));
}
}
public override char GetNextChar ()
{
if (_index == _buffer.Count)
return Char.MinValue;
return _buffer[_index++];
}
public override bool MovePrevious ()
{
if (_index > 0){
_index--;
return true;
}
return false;
}
public override int Remaining
{
get { return _buffer.Count - _index; }
}
}
public override EncoderFallbackBuffer CreateFallbackBuffer ()
{
return new BackslashReplaceFallbackBuffer ();
}
public override int MaxCharCount
{
get { throw new NotImplementedException (); }
}
}
class EncoderExceptionOnWrongIndexFallback : EncoderFallback
{
char _expectedCharUnknown;
int _expectedIndex;
public EncoderExceptionOnWrongIndexFallback (char expectedCharUnknown, int expectedIndex)
{
_expectedCharUnknown = expectedCharUnknown;
_expectedIndex = expectedIndex;
}
public override EncoderFallbackBuffer CreateFallbackBuffer ()
{
return new EncoderExceptionOnWrongIndexFallbackBuffer (_expectedCharUnknown, _expectedIndex);
}
public override int MaxCharCount => 1;
class EncoderExceptionOnWrongIndexFallbackBuffer : EncoderFallbackBuffer
{
char _expectedCharUnknown;
int _expectedIndex;
bool read;
public EncoderExceptionOnWrongIndexFallbackBuffer (char expectedCharUnknown, int expectedIndex)
{
_expectedCharUnknown = expectedCharUnknown;
_expectedIndex = expectedIndex;
}
public override int Remaining => read ? 0 : 1;
public override bool Fallback (char charUnknown, int index)
{
Assert.AreEqual (_expectedCharUnknown, charUnknown);
Assert.AreEqual (_expectedIndex, index);
return true;
}
public override bool Fallback (char charUnknownHigh, char charUnknownLow, int index)
{
throw new NotImplementedException ();
return true;
}
public override char GetNextChar ()
{
if (!read) {
read = true;
return '!';
}
return '\0';
}
public override bool MovePrevious ()
{
return false;
}
}
}
}
}