//
// System.IO.StringWriter
//
// Authors:
// Ville Palo (vi64pa@kolumbus.fi)
//
// (C) 2003 Ville Palo
//
using NUnit.Framework;
using System.IO;
using System.Text;
using System;
namespace MonoTests.System.IO {
[TestFixture]
public class BinaryWriterTest : Assertion {
string TempFolder = Path.Combine (Path.GetTempPath (), "MonoTests.System.IO.Tests");
[SetUp]
protected void SetUp() {
if (Directory.Exists (TempFolder))
Directory.Delete (TempFolder, true);
Directory.CreateDirectory (TempFolder);
}
[TearDown]
public void TearDown()
{
if (Directory.Exists (TempFolder))
Directory.Delete (TempFolder, true);
}
[Test]
public void Ctor ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
AssertEquals ("test#01", true, writer.BaseStream.CanRead);
AssertEquals ("test#02", true, writer.BaseStream.CanSeek);
AssertEquals ("test#03", true, writer.BaseStream.CanWrite);
writer = new BinaryWriter (stream, new ASCIIEncoding ());
AssertEquals ("test#04", true, writer.BaseStream.CanRead);
AssertEquals ("test#05", true, writer.BaseStream.CanSeek);
AssertEquals ("test#06", true, writer.BaseStream.CanWrite);
}
///
/// Throws an exception if stream is null
///
[Test]
[ExpectedException(typeof(ArgumentNullException))]
public void CtorNullExceptionStream ()
{
BinaryWriter reader = new BinaryWriter (null);
}
///
/// Throws an exception if encoding is null
///
[Test]
[ExpectedException(typeof(ArgumentNullException))]
public void CtorNullExceptionStreamEncoding ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter reader = new BinaryWriter (stream, null);
}
///
/// Throws an exception if stream is closed
///
[Test]
[ExpectedException(typeof(ArgumentException))]
public void CtorExceptionStreamClosed ()
{
MemoryStream stream = new MemoryStream ();
stream.Close ();
BinaryWriter writer = new BinaryWriter (stream);
}
///
/// Throws an exception if stream does not support writing
///
[Test]
[ExpectedException(typeof(ArgumentException))]
public void CtorArgumentExceptionStreamCannotWrite ()
{
string path = TempFolder + "/BinaryWriterTest.1";
DeleteFile (path);
FileStream stream = null;
BinaryWriter reader = null;
try {
stream = new FileStream (path, FileMode.OpenOrCreate, FileAccess.Read);
reader = new BinaryWriter (stream);
} finally {
if (reader != null)
reader.Close ();
if (stream != null)
stream.Close ();
DeleteFile (path);
}
}
[Test]
public void Encoding ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
writer.Write ("t*st");
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 4, bytes [0]);
AssertEquals ("test#02", 116, bytes [1]);
AssertEquals ("test#03", 42, bytes [2]);
AssertEquals ("test#04", 115, bytes [3]);
AssertEquals ("test#05", 116, bytes [4]);
AssertEquals ("test#06", 0, bytes [5]);
stream = new MemoryStream ();
writer = new BinaryWriter (stream, new UnicodeEncoding ());
writer.Write ("t*st");
bytes = stream.GetBuffer ();
AssertEquals ("test#07", 8, bytes [0]);
AssertEquals ("test#08", 116, bytes [1]);
AssertEquals ("test#09", 0, bytes [2]);
AssertEquals ("test#10", 42, bytes [3]);
AssertEquals ("test#11", 0, bytes [4]);
AssertEquals ("test#12", 115, bytes [5]);
AssertEquals ("test#13", 0, bytes [6]);
AssertEquals ("test#14", 116, bytes [7]);
AssertEquals ("test#15", 0, bytes [8]);
stream = new MemoryStream ();
writer = new BinaryWriter (stream, new UTF7Encoding ());
writer.Write ("t*st");
bytes = stream.GetBuffer ();
AssertEquals ("test#16", 8, bytes [0]);
AssertEquals ("test#17", 116, bytes [1]);
AssertEquals ("test#18", 43, bytes [2]);
AssertEquals ("test#19", 65, bytes [3]);
AssertEquals ("test#21", 67, bytes [4]);
AssertEquals ("test#22", 111, bytes [5]);
AssertEquals ("test#23", 45, bytes [6]);
AssertEquals ("test#24", 115, bytes [7]);
AssertEquals ("test#25", 116, bytes [8]);
AssertEquals ("test#26", 0, bytes [9]);
AssertEquals ("test#27", 0, bytes [10]);
stream = new MemoryStream ();
writer = new BinaryWriter (stream, new ASCIIEncoding ());
writer.Write ("t*st");
bytes = stream.GetBuffer ();
AssertEquals ("test#28", 4, bytes [0]);
AssertEquals ("test#29", 116, bytes [1]);
AssertEquals ("test#30", 42, bytes [2]);
AssertEquals ("test#31", 115, bytes [3]);
AssertEquals ("test#32", 116, bytes [4]);
AssertEquals ("test#33", 0, bytes [5]);
}
[Test]
[ExpectedException(typeof(ObjectDisposedException))]
public void Close1 ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream, new ASCIIEncoding ());
writer.Close ();
writer.Write ("Test");
}
[Test]
public void Close2 ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream, new ASCIIEncoding ());
writer.Close ();
writer.Flush ();
stream.Flush ();
}
[Test]
[ExpectedException(typeof(ObjectDisposedException))]
public void Close3 ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream, new ASCIIEncoding ());
writer.Close ();
writer.Seek (1, SeekOrigin.Begin);
}
[Test]
public void Close4 ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream, new ASCIIEncoding ());
writer.Close ();
AssertEquals ("test#01", false, writer.BaseStream.CanRead);
AssertEquals ("test#01", false, writer.BaseStream.CanWrite);
AssertEquals ("test#01", false, writer.BaseStream.CanSeek);
}
[Test]
public void Seek ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream, new ASCIIEncoding ());
writer.Write ("Test");
writer.Seek (2, SeekOrigin.Begin);
writer.Write ("-");
writer.Seek (400, SeekOrigin.Begin);
writer.Write ("-");
writer.Seek (-394, SeekOrigin.End);
writer.Write ("-");
writer.Seek (-2, SeekOrigin.Current);
writer.Write ("-");
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 512, bytes.Length);
AssertEquals ("test#02", 4, bytes [0]);
AssertEquals ("test#03", 84, bytes [1]);
AssertEquals ("test#04", 1, bytes [2]);
AssertEquals ("test#05", 45, bytes [3]);
AssertEquals ("test#06", 116, bytes [4]);
AssertEquals ("test#07", 0, bytes [5]);
AssertEquals ("test#08", 0, bytes [6]);
AssertEquals ("test#09", 0, bytes [7]);
AssertEquals ("test#10", 1, bytes [8]);
AssertEquals ("test#11", 45, bytes [9]);
AssertEquals ("test#12", 0, bytes [10]);
AssertEquals ("test#13", 0, bytes [11]);
AssertEquals ("test#14", 0, bytes [12]);
AssertEquals ("test#15", 1, bytes [400]);
}
[Test]
[ExpectedException(typeof(IOException))]
public void SeekException ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
writer.Write ("Test");
writer.Seek (-12, SeekOrigin.Begin);
}
[Test]
public void WriteCharArray ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
writer.Write (new char [] {'m', 'o', 'n', 'o', ':', ':'});
writer.Write (new char [] {':', ':', 'O', 'N', 'O', 'M'});
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 109, bytes [0]);
AssertEquals ("test#03", 111, bytes [1]);
AssertEquals ("test#04", 110, bytes [2]);
AssertEquals ("test#05", 111, bytes [3]);
AssertEquals ("test#06", 58, bytes [4]);
AssertEquals ("test#07", 58, bytes [5]);
AssertEquals ("test#08", 58, bytes [6]);
AssertEquals ("test#09", 58, bytes [7]);
AssertEquals ("test#10", 79, bytes [8]);
AssertEquals ("test#11", 78, bytes [9]);
AssertEquals ("test#12", 79, bytes [10]);
AssertEquals ("test#13", 77, bytes [11]);
AssertEquals ("test#14", 0, bytes [12]);
AssertEquals ("test#15", 0, bytes [13]);
}
[Test]
public void WriteByteArray ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
writer.Write (new byte [] {1, 2, 3, 4, 5, 6});
writer.Write (new byte [] {6, 5, 4, 3, 2, 1});
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 1, bytes [0]);
AssertEquals ("test#03", 2, bytes [1]);
AssertEquals ("test#04", 3, bytes [2]);
AssertEquals ("test#05", 4, bytes [3]);
AssertEquals ("test#06", 5, bytes [4]);
AssertEquals ("test#07", 6, bytes [5]);
AssertEquals ("test#08", 6, bytes [6]);
AssertEquals ("test#09", 5, bytes [7]);
AssertEquals ("test#10", 4, bytes [8]);
AssertEquals ("test#11", 3, bytes [9]);
AssertEquals ("test#12", 2, bytes [10]);
AssertEquals ("test#13", 1, bytes [11]);
AssertEquals ("test#14", 0, bytes [12]);
AssertEquals ("test#15", 0, bytes [13]);
}
[Test]
public void WriteInt ()
{
short s = 64;
int i = 64646464;
long l = 9999999999999;
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
writer.Write (s);
byte [] bytes;
bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 64, bytes [0]);
AssertEquals ("test#03", 0, bytes [1]);
writer.Write (i);
bytes = stream.GetBuffer ();
AssertEquals ("test#04", 256, bytes.Length);
AssertEquals ("test#05", 64, bytes [0]);
AssertEquals ("test#06", 0, bytes [1]);
AssertEquals ("test#07", 64, bytes [2]);
AssertEquals ("test#08", 109, bytes [3]);
AssertEquals ("test#09", 218, bytes [4]);
AssertEquals ("test#10", 3, bytes [5]);
AssertEquals ("test#11", 0, bytes [6]);
writer.Write (l);
bytes = stream.GetBuffer ();
AssertEquals ("test#12", 256, bytes.Length);
AssertEquals ("test#13", 255, bytes [6]);
AssertEquals ("test#14", 159, bytes [7]);
AssertEquals ("test#15", 114, bytes [8]);
AssertEquals ("test#16", 78, bytes [9]);
AssertEquals ("test#17", 24, bytes [10]);
AssertEquals ("test#18", 9, bytes [11]);
AssertEquals ("test#19", 0, bytes [12]);
}
[Test]
public void WriteDecimal ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
decimal d1 = 19932143214312.32M;
decimal d2 = -8995034512332157M;
writer.Write (d1);
writer.Write (d2);
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 192, bytes [0]);
AssertEquals ("test#03", 18, bytes [1]);
AssertEquals ("test#04", 151, bytes [2]);
AssertEquals ("test#05", 95, bytes [3]);
AssertEquals ("test#06", 209, bytes [4]);
AssertEquals ("test#07", 20, bytes [5]);
AssertEquals ("test#08", 7, bytes [6]);
AssertEquals ("test#09", 0, bytes [7]);
AssertEquals ("test#10", 0, bytes [8]);
AssertEquals ("test#11", 0, bytes [9]);
AssertEquals ("test#12", 0, bytes [10]);
AssertEquals ("test#13", 0, bytes [11]);
AssertEquals ("test#14", 0, bytes [12]);
AssertEquals ("test#15", 0, bytes [13]);
AssertEquals ("test#16", 2, bytes [14]);
AssertEquals ("test#17", 0, bytes [15]);
AssertEquals ("test#18", 125, bytes [16]);
AssertEquals ("test#19", 149, bytes [17]);
AssertEquals ("test#20", 217, bytes [18]);
AssertEquals ("test#21", 172, bytes [19]);
AssertEquals ("test#22", 239, bytes [20]);
AssertEquals ("test#23", 244, bytes [21]);
AssertEquals ("test#24", 31, bytes [22]);
AssertEquals ("test#25", 0, bytes [23]);
AssertEquals ("test#26", 0, bytes [24]);
AssertEquals ("test#27", 0, bytes [25]);
AssertEquals ("test#28", 0, bytes [26]);
AssertEquals ("test#29", 0, bytes [27]);
AssertEquals ("test#30", 0, bytes [28]);
AssertEquals ("test#31", 0, bytes [29]);
AssertEquals ("test#32", 0, bytes [30]);
AssertEquals ("test#33", 128, bytes [31]);
AssertEquals ("test#34", 0, bytes [32]);
AssertEquals ("test#35", 0, bytes [33]);
AssertEquals ("test#36", 0, bytes [34]);
AssertEquals ("test#37", 0, bytes [35]);
AssertEquals ("test#38", 0, bytes [36]);
AssertEquals ("test#39", 0, bytes [37]);
AssertEquals ("test#40", 0, bytes [38]);
AssertEquals ("test#41", 0, bytes [39]);
AssertEquals ("test#42", 0, bytes [40]);
AssertEquals ("test#43", 0, bytes [41]);
AssertEquals ("test#44", 0, bytes [42]);
AssertEquals ("test#45", 0, bytes [43]);
AssertEquals ("test#46", 0, bytes [44]);
AssertEquals ("test#47", 0, bytes [45]);
AssertEquals ("test#48", 0, bytes [46]);
}
[Test]
public void WriteFloat ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
float f1 = 1.543E+10F;
float f2 = -9.6534E-6f;
writer.Write (f1);
writer.Write (f2);
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 199, bytes [0]);
AssertEquals ("test#03", 236, bytes [1]);
AssertEquals ("test#04", 101, bytes [2]);
AssertEquals ("test#05", 80, bytes [3]);
AssertEquals ("test#06", 10, bytes [4]);
AssertEquals ("test#07", 245, bytes [5]);
AssertEquals ("test#08", 33, bytes [6]);
AssertEquals ("test#09", 183, bytes [7]);
AssertEquals ("test#10", 0, bytes [8]);
AssertEquals ("test#11", 0, bytes [9]);
}
[Test]
public void WriteDouble ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
double d1 = 1.543E+100;
double d2 = -9.6534E-129;
writer.Write (d1);
writer.Write (d2);
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 49, bytes [0]);
AssertEquals ("test#03", 69, bytes [1]);
AssertEquals ("test#04", 15, bytes [2]);
AssertEquals ("test#05", 157, bytes [3]);
AssertEquals ("test#06", 211, bytes [4]);
AssertEquals ("test#07", 55, bytes [5]);
AssertEquals ("test#08", 188, bytes [6]);
AssertEquals ("test#09", 84, bytes [7]);
AssertEquals ("test#10", 76, bytes [8]);
AssertEquals ("test#11", 59, bytes [9]);
AssertEquals ("test#12", 59, bytes [10]);
AssertEquals ("test#13", 60, bytes [11]);
AssertEquals ("test#14", 4, bytes [12]);
AssertEquals ("test#15", 196, bytes [13]);
AssertEquals ("test#16", 90, bytes [14]);
AssertEquals ("test#17", 165, bytes [15]);
AssertEquals ("test#18", 0, bytes [16]);
}
[Test]
public void WriteByteAndChar ()
{
byte b1 = 12;
byte b2 = 64;
char c1 = '-';
char c2 = 'M';
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
writer.Write (b1);
writer.Write (c1);
writer.Write (b2);
writer.Write (c2);
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 12, bytes [0]);
AssertEquals ("test#03", 45, bytes [1]);
AssertEquals ("test#04", 64, bytes [2]);
AssertEquals ("test#05", 77, bytes [3]);
AssertEquals ("test#06", 0, bytes [4]);
}
[Test]
public void WriteString ()
{
MemoryStream stream = new MemoryStream ();
BinaryWriter writer = new BinaryWriter (stream);
string s1 = "abc";
string s2 = "DeF\n";
writer.Write (s1);
writer.Write (s2);
byte [] bytes = stream.GetBuffer ();
AssertEquals ("test#01", 256, bytes.Length);
AssertEquals ("test#02", 3, bytes [0]);
AssertEquals ("test#03", 97, bytes [1]);
AssertEquals ("test#04", 98, bytes [2]);
AssertEquals ("test#05", 99, bytes [3]);
AssertEquals ("test#06", 4, bytes [4]);
AssertEquals ("test#07", 68, bytes [5]);
AssertEquals ("test#08", 101, bytes [6]);
AssertEquals ("test#09", 70, bytes [7]);
AssertEquals ("test#10", 10, bytes [8]);
AssertEquals ("test#11", 0, bytes [9]);
}
private void DeleteFile (string path)
{
if (File.Exists (path))
File.Delete (path);
}
}
}