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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 System;
using System.Text;
using NUnit.Framework;
namespace MonoTests.System.Text
{
public class ASCIIEncodingTest
{
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.IsFalse (Encoding.ASCII.IsBrowserDisplay);
}
[Test]
public void IsBrowserSave ()
{
Assert.IsFalse (Encoding.ASCII.IsBrowserSave);
}
[Test]
public void IsMailNewsDisplay ()
{
Assert.IsFalse (Encoding.ASCII.IsMailNewsDisplay);
}
[Test]
public void IsMailNewsSave ()
{
Assert.IsFalse (Encoding.ASCII.IsMailNewsSave);
}
[Test] // 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++)
Assert.AreEqual (testchars[i], (char) bytes[i]);
}
[Test] // Test GetBytes(char[], int, int)
public void TestGetBytes2 ()
{
Encoding ascii_encoding = Encoding.ASCII;
byte[] bytes = ascii_encoding.GetBytes(testchars, 1, 1);
Assert.AreEqual (1, bytes.Length, "#1");
Assert.AreEqual (testchars [1], (char) bytes [0], "#2");
}
[Test] // Test non-ASCII char in char[]
public void TestGetBytes3 ()
{
Encoding ascii_encoding = Encoding.ASCII;
testchars[2] = (char) 0x80;
byte[] bytes = ascii_encoding.GetBytes(testchars);
Assert.AreEqual ('T', (char) bytes [0], "#1");
Assert.AreEqual ('e', (char) bytes [1], "#2");
Assert.AreEqual ('?', (char) bytes [2], "#3");
Assert.AreEqual ('t', (char) bytes [3], "#4");
}
[Test] // 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);
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 ascii_encoding = Encoding.ASCII;
byte[] bytes = new Byte[1];
int cnt = ascii_encoding.GetBytes("Test", 1, 1, bytes, 0);
Assert.AreEqual ('e', (char) bytes [0], "#1");
}
[Test] // 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++)
Assert.AreEqual (testchars [i], (char) bytes [i]);
}
[Test] // 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++)
Assert.AreEqual (testbytes[i], (byte) chars[i]);
}
[Test] // Test GetChars(byte[], int, int)
public void TestGetChars2 ()
{
Encoding ascii_encoding = Encoding.ASCII;
char[] chars = ascii_encoding.GetChars(testbytes, 1, 1);
Assert.AreEqual (1, chars.Length, "#1");
Assert.AreEqual (testbytes [1], (byte) chars [0], "#2");
}
[Test] // Test non-ASCII char in byte[]
public void TestGetChars3 ()
{
Encoding ascii_encoding = Encoding.ASCII;
testbytes[2] = 0x80;
char[] chars = ascii_encoding.GetChars(testbytes);
Assert.AreEqual ('T', chars [0], "#1");
Assert.AreEqual ('e', chars [1], "#2");
Assert.AreEqual ('?', chars [2], "#3");
Assert.AreEqual ('t', chars [3], "#4");
}
[Test] // 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);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testbytes [1], (byte) chars [0], "#2");
}
[Test] // Test GetString(char[])
public void TestGetString1 ()
{
Encoding ascii_encoding = Encoding.ASCII;
string str = ascii_encoding.GetString(testbytes);
Assert.AreEqual ("Test", str);
}
[Test] // Test GetString(char[], int, int)
public void TestGetString2 ()
{
Encoding ascii_encoding = Encoding.ASCII;
string str = ascii_encoding.GetString(testbytes, 1, 2);
Assert.AreEqual ("es", str);
}
[Test] // 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
Assert.AreEqual ("a??", s);
#else
Assert.AreEqual ("aab", s);
#endif
}
[Test] // 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);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testbytes [1], (byte) chars [0], "#2");
}
[Test] // 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);
Assert.AreEqual (1, cnt, "#1");
Assert.AreEqual (testchars [1], (char) bytes [0], "#2");
}
[Test]
public void TestZero ()
{
Encoding encoding = Encoding.ASCII;
Assert.AreEqual (string.Empty, encoding.GetString (new byte [0]), "#1");
Assert.AreEqual (string.Empty, encoding.GetString (new byte [0], 0, 0), "#2");
}
#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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