1106 lines
31 KiB
C#
1106 lines
31 KiB
C#
// StreamWriterTest.cs - NUnit Test Cases for the SystemIO.StreamWriter class
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//
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// David Brandt (bucky@keystreams.com)
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//
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// (C) Ximian, Inc. http://www.ximian.com
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//
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using NUnit.Framework;
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using System;
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using System.IO;
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using System.Text;
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using System.Threading;
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namespace MonoTests.System.IO
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{
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[TestFixture]
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public class StreamWriterTest
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{
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class MockStream : Stream
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{
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bool canRead, canSeek, canWrite;
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public event Action OnFlush;
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public event Func<byte[], int, int, int> OnRead;
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public event Action<byte[], int, int> OnWrite;
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long length;
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public MockStream (bool canRead, bool canSeek, bool canWrite)
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{
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this.canRead = canRead;
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this.canSeek = canSeek;
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this.canWrite = canWrite;
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}
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public override bool CanRead {
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get {
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return canRead;
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}
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}
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public override bool CanSeek {
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get {
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return canSeek;
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}
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}
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public override bool CanWrite {
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get {
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return canWrite;
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}
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}
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public override void Flush ()
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{
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if (OnFlush != null)
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OnFlush ();
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}
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public override long Length {
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get {
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return length;
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}
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}
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public override long Position {
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get {
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throw new NotImplementedException ();
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}
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set {
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throw new NotImplementedException ();
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}
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}
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public override int Read (byte[] buffer, int offset, int count)
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{
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if (OnRead != null)
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return OnRead (buffer, offset, count);
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return -1;
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}
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public override long Seek (long offset, SeekOrigin origin)
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{
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throw new NotImplementedException ();
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}
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public override void SetLength (long value)
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{
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this.length = value;
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}
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public override void Write (byte[] buffer, int offset, int count)
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{
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if (OnWrite != null)
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OnWrite (buffer, offset, count);
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}
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}
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static string TempFolder = Path.Combine (Path.GetTempPath (), "MonoTests.System.IO.Tests");
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private string _codeFileName = TempFolder + Path.DirectorySeparatorChar + "AFile.txt";
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private string _thisCodeFileName = TempFolder + Path.DirectorySeparatorChar + "StreamWriterTest.temp";
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[SetUp]
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public void SetUp ()
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{
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if (Directory.Exists (TempFolder))
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Directory.Delete (TempFolder, true);
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Directory.CreateDirectory (TempFolder);
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if (!File.Exists (_thisCodeFileName))
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File.Create (_thisCodeFileName).Close ();
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}
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[TearDown]
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public void TearDown ()
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{
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if (Directory.Exists (TempFolder))
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Directory.Delete (TempFolder, true);
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}
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[Test] // .ctor (Stream)
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public void Constructor1 ()
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{
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FileStream f = new FileStream(_codeFileName,
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FileMode.Append,
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FileAccess.Write);
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StreamWriter r = new StreamWriter (f);
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Assert.IsFalse (r.AutoFlush, "#1");
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Assert.AreSame (f, r.BaseStream, "#2");
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Assert.IsNotNull (r.Encoding, "#3");
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Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#4");
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r.Close();
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f.Close();
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}
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[Test] // .ctor (Stream)
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public void Constructor1_Stream_NotWritable ()
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{
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FileStream f = new FileStream (_thisCodeFileName, FileMode.Open,
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FileAccess.Read);
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try {
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new StreamWriter (f);
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// Stream was not writable
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsNull (ex.ParamName, "#5");
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} finally {
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f.Close ();
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}
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}
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[Test] // .ctor (Stream)
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public void Constructor1_Stream_Null ()
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{
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try {
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new StreamWriter((Stream) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("stream", ex.ParamName, "#5");
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}
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}
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[Test] // .ctor (String)
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public void Constructor2 ()
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{
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// TODO - Security/Auth exceptions
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using (StreamWriter r = new StreamWriter (_codeFileName)) {
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Assert.IsFalse (r.AutoFlush, "#1");
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Assert.IsNotNull (r.BaseStream, "#2");
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Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#3");
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Assert.IsNotNull (r.Encoding, "#4");
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Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#5");
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r.Close ();
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}
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}
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[Test] // .ctor (String)
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public void Constructor2_Path_DirectoryNotFound ()
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{
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Directory.Delete (TempFolder, true);
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try {
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new StreamWriter (_codeFileName);
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Assert.Fail ("#1");
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} catch (DirectoryNotFoundException ex) {
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// Could not find a part of the path '...'
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Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#5");
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}
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}
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[Test] // .ctor (String)
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public void Constructor2_Path_Empty ()
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{
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try {
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new StreamWriter (string.Empty);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Empty path name is not legal
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsNull (ex.ParamName, "#5");
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}
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}
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[Test] // .ctor (String)
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public void Constructor2_Path_IllegalChars ()
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{
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try {
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new StreamWriter ("!$what? what? Huh? !$*#" + Path.InvalidPathChars [0]);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Illegal characters in path
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsNull (ex.ParamName, "#5");
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}
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}
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[Test] // .ctor (String)
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public void Constructor2_Path_Null ()
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{
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try {
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new StreamWriter ((string) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("path", ex.ParamName, "#5");
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}
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}
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[Test] // .ctor (Stream, Encoding)
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public void Constructor3 ()
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{
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FileStream f = new FileStream (_codeFileName,
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FileMode.Append,
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FileAccess.Write);
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StreamWriter r = new StreamWriter (f, Encoding.ASCII);
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Assert.IsFalse (r.AutoFlush, "#1");
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Assert.AreSame (f, r.BaseStream, "#2");
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Assert.IsNotNull (r.Encoding, "#3");
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Assert.AreEqual (typeof (ASCIIEncoding), r.Encoding.GetType (), "#4");
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r.Close ();
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f.Close ();
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}
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[Test] // .ctor (Stream, Encoding)
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public void Constructor3_Encoding_Null ()
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{
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MemoryStream m = new MemoryStream ();
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try {
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new StreamWriter (m, (Encoding) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("encoding", ex.ParamName, "#5");
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}
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}
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[Test] // .ctor (Stream, Encoding)
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public void Constructor3_Stream_NotWritable ()
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{
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FileStream f = new FileStream (_thisCodeFileName, FileMode.Open,
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FileAccess.Read);
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try {
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new StreamWriter (f, Encoding.UTF8);
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// Stream was not writable
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.IsNull (ex.ParamName, "#5");
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} finally {
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f.Close ();
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}
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}
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[Test] // .ctor (Stream, Encoding)
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public void Constructor3_Stream_Null ()
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{
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try {
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new StreamWriter ((Stream) null, Encoding.UTF8);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("stream", ex.ParamName, "#5");
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}
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}
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[Test] // .ctor (String, Boolean)
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public void Constructor4 ()
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{
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using (StreamWriter r = new StreamWriter (_codeFileName, false)) {
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Assert.IsFalse (r.AutoFlush, "#A1");
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Assert.IsNotNull (r.BaseStream, "#A2");
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Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#A3");
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Assert.IsNotNull (r.Encoding, "#A4");
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Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#A5");
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r.Close();
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}
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using (StreamWriter r = new StreamWriter(_codeFileName, true)) {
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Assert.IsFalse (r.AutoFlush, "#B1");
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Assert.IsNotNull (r.BaseStream, "#B2");
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Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#B3");
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Assert.IsNotNull (r.Encoding, "#B4");
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Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#B5");
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r.Close();
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}
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}
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[Test] // .ctor (String, Boolean)
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public void Constructor4_Path_DirectoryNotFound ()
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{
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Directory.Delete (TempFolder, true);
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try {
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new StreamWriter (_codeFileName, false);
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Assert.Fail ("#A1");
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} catch (DirectoryNotFoundException ex) {
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// Could not find a part of the path '...'
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Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#A5");
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}
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try {
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new StreamWriter (_codeFileName, true);
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Assert.Fail ("#B1");
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} catch (DirectoryNotFoundException ex) {
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// Could not find a part of the path '...'
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Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#B5");
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}
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}
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[Test] // .ctor (String, Boolean)
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public void Constructor4_Path_Empty ()
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{
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try {
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new StreamWriter (string.Empty, false);
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Assert.Fail ("#A1");
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} catch (ArgumentException ex) {
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// Empty path name is not legal
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.IsNull (ex.ParamName, "#A5");
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}
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try {
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new StreamWriter (string.Empty, true);
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// Empty path name is not legal
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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Assert.IsNull (ex.ParamName, "#B5");
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}
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}
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[Test] // .ctor (String, Boolean)
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public void Constructor4_Path_InvalidChars ()
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{
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try {
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new StreamWriter ("!$what? what? Huh? !$*#" + Path.InvalidPathChars [0], false);
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Assert.Fail ("#A1");
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} catch (ArgumentException ex) {
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// Illegal characters in path
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.IsNull (ex.ParamName, "#A5");
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}
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try {
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new StreamWriter ("!$what? what? Huh? !$*#" + Path.InvalidPathChars [0], true);
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// Illegal characters in path
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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Assert.IsNull (ex.ParamName, "#B5");
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}
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}
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[Test] // .ctor (String, Boolean)
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public void Constructor4_Path_Null ()
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{
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try {
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new StreamWriter ((string) null, false);
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Assert.Fail ("#A1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.AreEqual ("path", ex.ParamName, "#A5");
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}
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try {
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new StreamWriter ((string) null, true);
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Assert.Fail ("#B1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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Assert.AreEqual ("path", ex.ParamName, "#B5");
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}
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}
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[Test] // .ctor (Stream, Encoding, Int32)
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public void Constructor5 ()
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{
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MemoryStream m;
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StreamWriter r;
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m = new MemoryStream ();
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r = new StreamWriter (m, Encoding.ASCII, 10);
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Assert.IsFalse (r.AutoFlush, "#A1");
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Assert.AreSame (m, r.BaseStream, "#A2");
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Assert.IsNotNull (r.Encoding, "#A3");
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Assert.AreEqual (typeof (ASCIIEncoding), r.Encoding.GetType (), "#A4");
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r.Close ();
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m.Close ();
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m = new MemoryStream ();
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r = new StreamWriter (m, Encoding.UTF8, 1);
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Assert.IsFalse (r.AutoFlush, "#B1");
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Assert.AreSame (m, r.BaseStream, "#B2");
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Assert.IsNotNull (r.Encoding, "#B3");
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Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#B4");
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r.Close ();
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m.Close ();
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}
|
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|
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[Test] // .ctor (Stream, Encoding, Int32)
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public void Constructor5_BufferSize_NotPositive ()
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{
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MemoryStream m = new MemoryStream ();
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|
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try {
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new StreamWriter (m, Encoding.UTF8, 0);
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Assert.Fail ("#A1");
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} catch (ArgumentOutOfRangeException ex) {
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// Positive number required
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Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.AreEqual ("bufferSize", ex.ParamName, "#A5");
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}
|
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|
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try {
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new StreamWriter (m, Encoding.UTF8, -1);
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Assert.Fail ("#B1");
|
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} catch (ArgumentOutOfRangeException ex) {
|
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// Positive number required
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Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#B2");
|
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Assert.IsNull (ex.InnerException, "#B3");
|
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Assert.IsNotNull (ex.Message, "#B4");
|
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Assert.AreEqual ("bufferSize", ex.ParamName, "#B5");
|
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}
|
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}
|
|
|
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[Test] // .ctor (Stream, Encoding, Int32)
|
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public void Constructor5_Encoding_Null ()
|
|
{
|
|
MemoryStream m = new MemoryStream ();
|
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try {
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new StreamWriter (m, (Encoding) null, 10);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
|
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Assert.IsNotNull (ex.Message, "#4");
|
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Assert.AreEqual ("encoding", ex.ParamName, "#5");
|
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}
|
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}
|
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|
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[Test] // .ctor (Stream, Encoding, Int32)
|
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public void Constructor5_Stream_NotWritable ()
|
|
{
|
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FileStream f = new FileStream (_thisCodeFileName, FileMode.Open,
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FileAccess.Read);
|
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try {
|
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new StreamWriter (f, Encoding.UTF8, 10);
|
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Assert.Fail ("#B1");
|
|
} catch (ArgumentException ex) {
|
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// Stream was not writable
|
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
|
|
Assert.IsNull (ex.InnerException, "#3");
|
|
Assert.IsNotNull (ex.Message, "#4");
|
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Assert.IsNull (ex.ParamName, "#5");
|
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} finally {
|
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f.Close ();
|
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}
|
|
}
|
|
|
|
[Test] // .ctor (Stream, Encoding, Int32)
|
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public void Constructor5_Stream_Null ()
|
|
{
|
|
try {
|
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new StreamWriter ((Stream) null, Encoding.UTF8, 10);
|
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Assert.Fail ("#1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
|
|
Assert.IsNull (ex.InnerException, "#3");
|
|
Assert.IsNotNull (ex.Message, "#4");
|
|
Assert.AreEqual ("stream", ex.ParamName, "#5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding)
|
|
public void Constructor6 ()
|
|
{
|
|
using (StreamWriter r = new StreamWriter (_codeFileName, false, Encoding.ASCII)) {
|
|
Assert.IsFalse (r.AutoFlush, "#A1");
|
|
Assert.IsNotNull (r.BaseStream, "#A2");
|
|
Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#A3");
|
|
Assert.IsNotNull (r.Encoding, "#A4");
|
|
Assert.AreEqual (typeof (ASCIIEncoding), r.Encoding.GetType (), "#A5");
|
|
r.Close ();
|
|
}
|
|
|
|
using (StreamWriter r = new StreamWriter (_codeFileName, true, Encoding.UTF8)) {
|
|
Assert.IsFalse (r.AutoFlush, "#B1");
|
|
Assert.IsNotNull (r.BaseStream, "#B2");
|
|
Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#B3");
|
|
Assert.IsNotNull (r.Encoding, "#B4");
|
|
Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#B5");
|
|
r.Close ();
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding)
|
|
public void Constructor6_Encoding_Null ()
|
|
{
|
|
try {
|
|
new StreamWriter (_codeFileName, false, (Encoding) null);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.AreEqual ("encoding", ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, true, (Encoding) null);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.AreEqual ("encoding", ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding)
|
|
public void Constructor6_Path_DirectoryNotFound ()
|
|
{
|
|
Directory.Delete (TempFolder, true);
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, false, Encoding.UTF8);
|
|
Assert.Fail ("#A1");
|
|
} catch (DirectoryNotFoundException ex) {
|
|
// Could not find a part of the path '...'
|
|
Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, true, Encoding.UTF8);
|
|
Assert.Fail ("#B1");
|
|
} catch (DirectoryNotFoundException ex) {
|
|
// Could not find a part of the path '...'
|
|
Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding)
|
|
public void Constructor6_Path_Empty ()
|
|
{
|
|
try {
|
|
new StreamWriter (string.Empty, false, Encoding.UTF8);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentException ex) {
|
|
// Empty path name is not legal
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.IsNull (ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (string.Empty, true, Encoding.UTF8);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentException ex) {
|
|
// Empty path name is not legal
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.IsNull (ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding)
|
|
public void Constructor6_Path_InvalidChars ()
|
|
{
|
|
try {
|
|
new StreamWriter ("!$what? what? Huh? !$*#" +
|
|
Path.InvalidPathChars [0], false,
|
|
Encoding.UTF8);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentException ex) {
|
|
// Illegal characters in path
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.IsNull (ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter ("!$what? what? Huh? !$*#" +
|
|
Path.InvalidPathChars [0], true,
|
|
Encoding.UTF8);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentException ex) {
|
|
// Illegal characters in path
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.IsNull (ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding)
|
|
public void Constructor6_Path_Null ()
|
|
{
|
|
try {
|
|
new StreamWriter ((string) null, false, Encoding.UTF8);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.AreEqual ("path", ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter ((string) null, true, Encoding.UTF8);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.AreEqual ("path", ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7 ()
|
|
{
|
|
using (StreamWriter r = new StreamWriter (_codeFileName, false, Encoding.ASCII, 10)) {
|
|
Assert.IsFalse (r.AutoFlush, "#A1");
|
|
Assert.IsNotNull (r.BaseStream, "#A2");
|
|
Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#A3");
|
|
Assert.IsNotNull (r.Encoding, "#A4");
|
|
Assert.AreEqual (typeof (ASCIIEncoding), r.Encoding.GetType (), "#A5");
|
|
r.Close ();
|
|
}
|
|
|
|
using (StreamWriter r = new StreamWriter (_codeFileName, true, Encoding.UTF8, 1)) {
|
|
Assert.IsFalse (r.AutoFlush, "#B1");
|
|
Assert.IsNotNull (r.BaseStream, "#B2");
|
|
Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#B3");
|
|
Assert.IsNotNull (r.Encoding, "#B4");
|
|
Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#B5");
|
|
r.Close ();
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7_BufferSize_NotPositive ()
|
|
{
|
|
try {
|
|
new StreamWriter (_codeFileName, false, Encoding.UTF8, 0);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentOutOfRangeException ex) {
|
|
// Positive number required
|
|
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.AreEqual ("bufferSize", ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, false, Encoding.UTF8, -1);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentOutOfRangeException ex) {
|
|
// Positive number required
|
|
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.AreEqual ("bufferSize", ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7_Encoding_Null ()
|
|
{
|
|
try {
|
|
new StreamWriter (_codeFileName, false, (Encoding) null, 10);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.AreEqual ("encoding", ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, true, (Encoding) null, 10);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.AreEqual ("encoding", ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7_Path_DirectoryNotFound ()
|
|
{
|
|
Directory.Delete (TempFolder, true);
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, false, Encoding.UTF8, 10);
|
|
Assert.Fail ("#A1");
|
|
} catch (DirectoryNotFoundException ex) {
|
|
// Could not find a part of the path '...'
|
|
Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (_codeFileName, true, Encoding.UTF8, 10);
|
|
Assert.Fail ("#B1");
|
|
} catch (DirectoryNotFoundException ex) {
|
|
// Could not find a part of the path '...'
|
|
Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7_Path_Empty ()
|
|
{
|
|
try {
|
|
new StreamWriter (string.Empty, false, Encoding.UTF8, 10);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentException ex) {
|
|
// Empty path name is not legal
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.IsNull (ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter (string.Empty, true, Encoding.UTF8, 10);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentException ex) {
|
|
// Empty path name is not legal
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.IsNull (ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7_Path_InvalidChars ()
|
|
{
|
|
try {
|
|
new StreamWriter ("!$what? what? Huh? !$*#" +
|
|
Path.InvalidPathChars [0], false,
|
|
Encoding.UTF8, 10);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentException ex) {
|
|
// Illegal characters in path
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.IsNull (ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter ("!$what? what? Huh? !$*#" +
|
|
Path.InvalidPathChars [0], true,
|
|
Encoding.UTF8, 10);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentException ex) {
|
|
// Illegal characters in path
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.IsNull (ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test] // .ctor (String, Boolean, Encoding, Int32)
|
|
public void Constructor7_Path_Null ()
|
|
{
|
|
try {
|
|
new StreamWriter ((string) null, false, Encoding.UTF8, 10);
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.AreEqual ("path", ex.ParamName, "#A5");
|
|
}
|
|
|
|
try {
|
|
new StreamWriter ((string) null, true, Encoding.UTF8, 10);
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentNullException ex) {
|
|
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.AreEqual ("path", ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
[Test]
|
|
public void AutoFlush ()
|
|
{
|
|
MemoryStream m;
|
|
StreamWriter w;
|
|
|
|
m = new MemoryStream ();
|
|
w = new StreamWriter (m);
|
|
w.Write (1);
|
|
w.Write (2);
|
|
w.Write (3);
|
|
w.Write (4);
|
|
Assert.AreEqual (0, m.Length, "#A1");
|
|
w.AutoFlush = true;
|
|
Assert.IsTrue (w.AutoFlush, "#A2");
|
|
Assert.AreEqual (4, m.Length, "#A3");
|
|
w.Flush ();
|
|
Assert.AreEqual (4, m.Length, "#A4");
|
|
|
|
m = new MemoryStream ();
|
|
w = new StreamWriter(m);
|
|
w.AutoFlush = true;
|
|
Assert.IsTrue (w.AutoFlush, "#B1");
|
|
w.Write (1);
|
|
w.Write (2);
|
|
w.Write (3);
|
|
w.Write (4);
|
|
Assert.AreEqual (4, m.Length, "#B2");
|
|
w.Flush ();
|
|
Assert.AreEqual (4, m.Length, "#B3");
|
|
w.AutoFlush = false;
|
|
Assert.IsFalse (w.AutoFlush, "#B4");
|
|
w.Write (4);
|
|
Assert.AreEqual (4, m.Length, "#B5");
|
|
w.Flush ();
|
|
Assert.AreEqual (5, m.Length, "#B6");
|
|
}
|
|
|
|
[Test]
|
|
public void AutoFlush_Disposed ()
|
|
{
|
|
StreamWriter w;
|
|
|
|
w = new StreamWriter (new MemoryStream ());
|
|
w.Close ();
|
|
w.AutoFlush = false;
|
|
Assert.IsFalse (w.AutoFlush, "#A1");
|
|
try {
|
|
w.AutoFlush = true;
|
|
Assert.Fail ("#A2");
|
|
} catch (ObjectDisposedException) {
|
|
}
|
|
Assert.IsTrue (w.AutoFlush, "#A3");
|
|
|
|
w = new StreamWriter (new MemoryStream ());
|
|
w.AutoFlush = true;
|
|
w.Close ();
|
|
Assert.IsTrue (w.AutoFlush, "#B1");
|
|
try {
|
|
w.AutoFlush = true;
|
|
Assert.Fail ("#B2");
|
|
} catch (ObjectDisposedException) {
|
|
}
|
|
Assert.IsTrue (w.AutoFlush, "#B3");
|
|
w.AutoFlush = false;
|
|
Assert.IsFalse (w.AutoFlush, "#B4");
|
|
}
|
|
|
|
[Test]
|
|
public void Close ()
|
|
{
|
|
Encoding encoding = Encoding.ASCII;
|
|
MemoryStream m = new MemoryStream ();
|
|
StreamWriter w = new StreamWriter (m, encoding);
|
|
w.Write (2);
|
|
Assert.AreEqual (0, m.Length, "#1");
|
|
w.Close ();
|
|
Assert.IsFalse (m.CanWrite, "#2");
|
|
Assert.AreEqual (50, m.GetBuffer () [0], "#3");
|
|
Assert.IsNull (w.BaseStream, "#4");
|
|
Assert.IsNull (w.Encoding, "#5");
|
|
}
|
|
|
|
[Test]
|
|
public void Flush ()
|
|
{
|
|
MemoryStream m = new MemoryStream();
|
|
StreamWriter w = new StreamWriter(m);
|
|
w.Write(1);
|
|
w.Write(2);
|
|
w.Write(3);
|
|
w.Write(4);
|
|
Assert.AreEqual (0L, m.Length, "#1");
|
|
w.Flush();
|
|
Assert.AreEqual (4L, m.Length, "#2");
|
|
}
|
|
|
|
[Test]
|
|
public void Flush_Disposed ()
|
|
{
|
|
StreamWriter w = new StreamWriter(new MemoryStream ());
|
|
w.Close();
|
|
try {
|
|
w.Flush ();
|
|
Assert.Fail ("#1");
|
|
} catch (ObjectDisposedException) {
|
|
}
|
|
}
|
|
|
|
[Test]
|
|
[ExpectedException (typeof (ObjectDisposedException))]
|
|
public void WriteChar_Disposed ()
|
|
{
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Close ();
|
|
w.Write ('A');
|
|
}
|
|
|
|
[Test]
|
|
[ExpectedException (typeof (ObjectDisposedException))]
|
|
public void WriteCharArray_Disposed ()
|
|
{
|
|
char[] c = new char [2] { 'a', 'b' };
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Close ();
|
|
w.Write (c, 0, 2);
|
|
}
|
|
|
|
[Test]
|
|
public void WriteCharArray_Null ()
|
|
{
|
|
char[] c = null;
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Write (c);
|
|
}
|
|
|
|
[Test]
|
|
[ExpectedException (typeof (ArgumentException))]
|
|
public void WriteCharArray_IndexOverflow ()
|
|
{
|
|
char[] c = new char [2] { 'a', 'b' };
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Write (c, Int32.MaxValue, 2);
|
|
}
|
|
|
|
[Test]
|
|
[ExpectedException (typeof (ArgumentException))]
|
|
public void WriteCharArray_CountOverflow ()
|
|
{
|
|
char[] c = new char [2] { 'a', 'b' };
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Write (c, 1, Int32.MaxValue);
|
|
}
|
|
|
|
[Test]
|
|
[ExpectedException (typeof (ObjectDisposedException))]
|
|
public void WriteString_Disposed ()
|
|
{
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Close ();
|
|
w.Write ("mono");
|
|
}
|
|
|
|
[Test]
|
|
public void WriteString_Null ()
|
|
{
|
|
string s = null;
|
|
StreamWriter w = new StreamWriter (new MemoryStream ());
|
|
w.Write (s);
|
|
}
|
|
|
|
[Test]
|
|
public void NoPreambleOnAppend ()
|
|
{
|
|
MemoryStream ms = new MemoryStream ();
|
|
StreamWriter w = new StreamWriter (ms, Encoding.UTF8);
|
|
w.Write ("a");
|
|
w.Flush ();
|
|
Assert.AreEqual (4, ms.Position, "#1");
|
|
|
|
// Append 1 byte, should skip the preamble now.
|
|
w.Write ("a");
|
|
w.Flush ();
|
|
w = new StreamWriter (ms, Encoding.UTF8);
|
|
Assert.AreEqual (5, ms.Position, "#2");
|
|
}
|
|
|
|
#if NET_4_5
|
|
[Test]
|
|
public void FlushAsync ()
|
|
{
|
|
ManualResetEvent mre = new ManualResetEvent (false);
|
|
var m = new MockStream(true, false, true);
|
|
var w = new StreamWriter (m);
|
|
w.Write(1);
|
|
Assert.AreEqual (0L, m.Length, "#1");
|
|
var t = w.WriteLineAsync ();
|
|
Assert.IsTrue (t.Wait (1000), "#2");
|
|
Assert.IsTrue (w.FlushAsync ().Wait (1000), "#3");
|
|
}
|
|
|
|
[Test]
|
|
public void KeepOpenWithDispose ()
|
|
{
|
|
var ms = new MemoryStream ();
|
|
using (StreamWriter writer = new StreamWriter (ms, new UTF8Encoding (false), 4096, true)) {
|
|
writer.Write ('X');
|
|
}
|
|
|
|
Assert.AreEqual (1, ms.Length);
|
|
}
|
|
|
|
[Test]
|
|
public void WriteAsync ()
|
|
{
|
|
var m = new MockStream(true, false, true);
|
|
var w = new StreamWriter (m);
|
|
|
|
var t = w.WriteAsync ("v");
|
|
Assert.IsTrue (t.Wait (1000), "#1");
|
|
|
|
t = w.WriteAsync ((string) null);
|
|
Assert.IsTrue (t.Wait (1000), "#2");
|
|
|
|
t = w.WriteLineAsync ("line");
|
|
Assert.IsTrue (t.Wait (1000), "#3");
|
|
|
|
t = w.WriteLineAsync ((string) null);
|
|
Assert.IsTrue (t.Wait (1000), "#4");
|
|
|
|
t = w.WriteLineAsync ('c');
|
|
Assert.IsTrue (t.Wait (1000), "#5");
|
|
}
|
|
|
|
#endif
|
|
|
|
// TODO - Write - test errors, functionality tested in TestFlush.
|
|
}
|
|
}
|