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// ASCIIEncodingTest - NUnit Test Cases for the System.Text.ASCIIEncoding class
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// <c> 2002 Mike Kestner
using NUnit.Framework;
using System.Text;
using System;
namespace MonoTests.System.Text {
public class ASCIIEncodingTest : TestCase {
private char[] testchars;
private byte[] testbytes;
protected override 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 GetBytes(char[])
public void TestGetBytes1 ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = ascii_encoding.GetBytes(testchars);
for (int i = 0; i < testchars.Length; i++)
AssertEquals (testchars[i], (char) bytes[i]);
}
// Test GetBytes(char[], int, int)
public void TestGetBytes2 ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = ascii_encoding.GetBytes(testchars, 1, 1);
AssertEquals (1, bytes.Length);
AssertEquals (testchars[1], (char) bytes[0]);
}
// Test non-ASCII char in char[]
public void TestGetBytes3 ()
{
Encoding ascii_encoding = Encoding.ASCII;
testchars[2] = (char) 0x80;
byte[] bytes = ascii_encoding.GetBytes(testchars);
AssertEquals ('T', (char) bytes[0]);
AssertEquals ('e', (char) bytes[1]);
AssertEquals ('?', (char) bytes[2]);
AssertEquals ('t', (char) bytes[3]);
}
// Test GetBytes(char[], int, int, byte[], int)
public void TestGetBytes4 ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = new Byte[1];
int cnt = ascii_encoding.GetBytes(testchars, 1, 1, bytes, 0);
AssertEquals (1, cnt);
AssertEquals (testchars[1], (char) bytes[0]);
}
// Test GetBytes(string, int, int, byte[], int)
public void TestGetBytes5 ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = new Byte[1];
int cnt = ascii_encoding.GetBytes("Test", 1, 1, bytes, 0);
AssertEquals ('e', (char) bytes[0]);
}
// Test GetBytes(string)
public void TestGetBytes6 ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = ascii_encoding.GetBytes("Test");
for (int i = 0; i < testchars.Length; i++)
AssertEquals (testchars[i], (char) bytes[i]);
}
// Test GetChars(byte[])
public void TestGetChars1 ()
{
Encoding ascii_encoding = Encoding.ASCII;
char[] chars = ascii_encoding.GetChars(testbytes);
for (int i = 0; i < testbytes.Length; i++)
AssertEquals (testbytes[i], (byte) chars[i]);
}
// Test GetChars(byte[], int, int)
public void TestGetChars2 ()
{
Encoding ascii_encoding = Encoding.ASCII;
char[] chars = ascii_encoding.GetChars(testbytes, 1, 1);
AssertEquals (1, chars.Length);
AssertEquals (testbytes[1], (byte) chars[0]);
}
// Test non-ASCII char in byte[]
public void TestGetChars3 ()
{
Encoding ascii_encoding = Encoding.ASCII;
testbytes[2] = 0x80;
char[] chars = ascii_encoding.GetChars(testbytes);
AssertEquals ('T', chars[0]);
AssertEquals ('e', chars[1]);
AssertEquals ('?', chars[2]);
AssertEquals ('t', chars[3]);
}
// Test GetChars(byte[], int, int, char[], int)
public void TestGetChars4 ()
{
Encoding ascii_encoding = Encoding.ASCII;
char[] chars = new char[1];
int cnt = ascii_encoding.GetChars(testbytes, 1, 1, chars, 0);
AssertEquals (1, cnt);
AssertEquals (testbytes[1], (byte) chars[0]);
}
// Test GetString(char[])
public void TestGetString1 ()
{
Encoding ascii_encoding = Encoding.ASCII;
string str = ascii_encoding.GetString(testbytes);
AssertEquals ("Test", str);
}
// Test GetString(char[], int, int)
public void TestGetString2 ()
{
Encoding ascii_encoding = Encoding.ASCII;
string str = ascii_encoding.GetString(testbytes, 1, 2);
AssertEquals ("es", str);
}
// Test invalid byte handling
public void TestGetString3 ()
{
Encoding encoding = Encoding.ASCII;
byte [] bytes = new byte [] {0x61, 0xE1, 0xE2};
string s = encoding.GetString (bytes, 0, 3);
#if NET_2_0
AssertEquals ("a??", s);
#else
AssertEquals ("aab", s);
#endif
}
// Test Decoder
public void TestDecoder ()
{
Encoding ascii_encoding = Encoding.ASCII;
char[] chars = new char[1];
int cnt = ascii_encoding.GetDecoder().GetChars(testbytes, 1, 1, chars, 0);
AssertEquals (1, cnt);
AssertEquals (testbytes[1], (byte) chars[0]);
}
// Test Decoder
public void TestEncoder ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = new Byte[1];
int cnt = ascii_encoding.GetEncoder().GetBytes(testchars, 1, 1, bytes, 0, false);
AssertEquals (1, cnt);
AssertEquals (testchars[1], (char) bytes[0]);
}
public void TestZero ()
{
Encoding encoding = Encoding.ASCII;
AssertEquals ("#01", encoding.GetString (new byte [0]), "");
AssertEquals ("#02", encoding.GetString (new byte [0], 0, 0), "");
}
#if NET_2_0
[Test]
[ExpectedException (typeof (DecoderFallbackException))]
public void DecoderFallback ()
{
Encoding e = Encoding.ASCII.Clone () as Encoding;
e.DecoderFallback = new DecoderExceptionFallback ();
e.GetChars (new byte [] {0x80});
}
#endif
}
}
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