-// StreamWriterTest.cs - NUnit Test Cases for the SystemIO.StreamWriter class\r
-//\r
-// David Brandt (bucky@keystreams.com)\r
-//\r
-// (C) Ximian, Inc. http://www.ximian.com\r
-// \r
-\r
-using NUnit.Framework;\r
-using System;\r
-using System.IO;\r
-using System.Text;\r
-\r
-namespace MonoTests.System.IO\r
-{\r
-\r
-public class StreamWriterTest : TestCase\r
-{\r
- protected override void SetUp() \r
- {\r
- }\r
-\r
- protected override void TearDown() \r
- {\r
- }\r
-\r
- private string _codeFileName = "StreamWriterTest.temp";\r
- private string _thisCodeFileName = "resources" + Path.DirectorySeparatorChar + "AFile.txt";\r
-\r
- // TODO - ctors\r
- public void TestCtor1() {\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter((Stream)null);\r
- } catch (ArgumentNullException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 1: " + e.ToString());\r
- }\r
- Assert("null string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- FileStream f = new FileStream(_thisCodeFileName, \r
- FileMode.Open, \r
- FileAccess.Read);\r
- try {\r
- StreamWriter r = new StreamWriter(f);\r
- r.Close();\r
- } catch (ArgumentException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 2: " + e.ToString());\r
- }\r
- f.Close();\r
- Assert("no read error not thrown", errorThrown);\r
- }\r
- {\r
- FileStream f = new FileStream(_codeFileName, \r
- FileMode.Append, \r
- FileAccess.Write);\r
- StreamWriter r = new StreamWriter(f);\r
- AssertNotNull("no stream writer", r);\r
- r.Close();\r
- f.Close();\r
- }\r
- }\r
- public void TestCtor2() {\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("");\r
- } catch (ArgumentException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 1: " + e.ToString());\r
- }\r
- Assert("empty string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter((string)null);\r
- } catch (ArgumentNullException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 2: " + e.ToString());\r
- }\r
- Assert("null string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("nonexistentdir/file");\r
- } catch (DirectoryNotFoundException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 3: " + e.ToString());\r
- }\r
- Assert("dirNotFound error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("!$what? what? Huh? !$*#" + Path.InvalidPathChars[0]);\r
- } catch (IOException) {\r
- errorThrown = true;\r
- } catch (ArgumentException) {\r
- // FIXME - the spec says 'IOExc', but the\r
- // compiler says 'ArgExc'...\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 4: " + e.ToString());\r
- }\r
- Assert("1 invalid filename error not thrown", errorThrown);\r
- }\r
- // TODO - Security/Auth exceptions\r
- {\r
- StreamWriter r = new StreamWriter(_codeFileName);\r
- AssertNotNull("no stream writer", r);\r
- r.Close();\r
- }\r
- }\r
- public void TestCtor3() {\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("", false);\r
- } catch (ArgumentException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 1: " + e.ToString());\r
- }\r
- Assert("empty string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter((string)null, false);\r
- } catch (ArgumentNullException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 2: " + e.ToString());\r
- }\r
- Assert("null string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("nonexistentdir/file", false);\r
- } catch (DirectoryNotFoundException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 3: " + e.ToString());\r
- }\r
- Assert("dirNotFound error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("!$what? what? Huh? !$*#" + Path.InvalidPathChars[0], false);\r
- } catch (IOException) {\r
- errorThrown = true;\r
- } catch (ArgumentException) {\r
- // FIXME - the spec says 'IOExc', but the\r
- // compiler says 'ArgExc'...\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 4: " + e.ToString());\r
- }\r
- Assert("2 invalid filename error not thrown", errorThrown);\r
- }\r
- {\r
- StreamWriter r = new StreamWriter(_codeFileName, false);\r
- AssertNotNull("no stream writer", r);\r
- r.Close();\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("", true);\r
- } catch (ArgumentException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 5: " + e.ToString());\r
- }\r
- Assert("empty string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter((string)null, true);\r
- } catch (ArgumentNullException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 6: " + e.ToString());\r
- }\r
- Assert("null string error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("nonexistentdir/file", true);\r
- } catch (DirectoryNotFoundException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 7: " + e.ToString());\r
- }\r
- Assert("dirNotFound error not thrown", errorThrown);\r
- }\r
- {\r
- bool errorThrown = false;\r
- try {\r
- StreamWriter r = new StreamWriter("!$what? what? Huh? !$*#" + Path.InvalidPathChars[0], true);\r
- } catch (IOException) {\r
- errorThrown = true;\r
- } catch (ArgumentException) {\r
- // FIXME - the spec says 'IOExc', but the\r
- // compiler says 'ArgExc'...\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 8: " + e.ToString());\r
- }\r
- Assert("3 invalid filename error not thrown", errorThrown);\r
- }\r
- {\r
- try {\r
- StreamWriter r = new StreamWriter(_codeFileName, true);\r
- AssertNotNull("no stream writer", r);\r
- r.Close();\r
- } catch (Exception e) {\r
- Fail ("Unxpected exception e=" + e.ToString());\r
- }\r
- }\r
- }\r
-\r
- // TODO - ctors with Encoding\r
-\r
- // TODO - AutoFlush\r
- public void TestAutoFlush() {\r
- {\r
- MemoryStream m = new MemoryStream();\r
- StreamWriter w = new StreamWriter(m);\r
- w.AutoFlush = false;\r
- w.Write(1);\r
- w.Write(2);\r
- w.Write(3);\r
- w.Write(4);\r
- AssertEquals("Should be nothing before flush",\r
- 0L, m.Length);\r
- w.Flush();\r
- AssertEquals("Should be something after flush",\r
- 4L, m.Length);\r
- } \r
- {\r
- MemoryStream m = new MemoryStream();\r
- StreamWriter w = new StreamWriter(m);\r
- w.AutoFlush = true;\r
- w.Write(1);\r
- w.Write(2);\r
- w.Write(3);\r
- w.Write(4);\r
- AssertEquals("Should be something before flush",\r
- 4L, m.Length);\r
- w.Flush();\r
- AssertEquals("Should be something after flush",\r
- 4L, m.Length);\r
- } \r
- }\r
-\r
- public void TestBaseStream() {\r
- FileStream f = new FileStream(_codeFileName, \r
- FileMode.Append, \r
- FileAccess.Write);\r
- StreamWriter r = new StreamWriter(f);\r
- AssertEquals("wrong base stream ", f, r.BaseStream);\r
- r.Close();\r
- f.Close();\r
- }\r
-\r
- public void TestEncoding() {\r
- StreamWriter r = new StreamWriter(_codeFileName);\r
- AssertEquals("wrong encoding", \r
- Encoding.UTF8.GetType(), r.Encoding.GetType());\r
- r.Close();\r
- }\r
-\r
- // TODO - Close - not entirely sure how to test Close\r
- //public void TestClose() {\r
- //{\r
- //MemoryStream m = new MemoryStream();\r
- //StreamWriter w = new StreamWriter(m);\r
- //StreamReader r = new StreamReader(m);\r
- //w.Write(1);\r
- //w.Write(2);\r
- //w.Write(3);\r
- //w.Write(4);\r
- //AssertEquals("Should be nothing before close",\r
- //0, m.Length);\r
- //AssertEquals("Should be nothing in reader",\r
- //-1, r.Peek());\r
- //w.Close();\r
- //AssertEquals("Should be something after close",\r
- //1, r.Peek());\r
- //} \r
- //}\r
-\r
- // TODO - Flush\r
- public void TestFlush() {\r
- {\r
- bool errorThrown = false;\r
- try {\r
- FileStream f = new FileStream(_codeFileName, \r
- FileMode.Append, \r
- FileAccess.Write);\r
- StreamWriter r = new StreamWriter(f);\r
- r.Close();\r
- r.Flush();\r
- } catch (ObjectDisposedException) {\r
- errorThrown = true;\r
- } catch (Exception e) {\r
- Fail ("Incorrect exception thrown at 1: " + e.ToString());\r
- }\r
- Assert("can't flush closed error not thrown", errorThrown);\r
- }\r
- {\r
- MemoryStream m = new MemoryStream();\r
- StreamWriter w = new StreamWriter(m);\r
- w.Write(1);\r
- w.Write(2);\r
- w.Write(3);\r
- w.Write(4);\r
- AssertEquals("Should be nothing before flush",\r
- 0L, m.Length);\r
- w.Flush();\r
- AssertEquals("Should be something after flush",\r
- 4L, m.Length);\r
- } \r
- }\r
-\r
- // TODO - Write - test errors, functionality tested in TestFlush.\r
-}\r
-}\r
+// StreamWriterTest.cs - NUnit Test Cases for the SystemIO.StreamWriter class
+//
+// David Brandt (bucky@keystreams.com)
+//
+// (C) Ximian, Inc. http://www.ximian.com
+//
+
+using NUnit.Framework;
+using System;
+using System.IO;
+using System.Text;
+
+namespace MonoTests.System.IO
+{
+
+[TestFixture]
+public class StreamWriterTest
+{
+ static string TempFolder = Path.Combine (Path.GetTempPath (), "MonoTests.System.IO.Tests");
+ private string _codeFileName = TempFolder + Path.DirectorySeparatorChar + "AFile.txt";
+ private string _thisCodeFileName = TempFolder + Path.DirectorySeparatorChar + "StreamWriterTest.temp";
+
+ [SetUp]
+ public void SetUp ()
+ {
+ if (Directory.Exists (TempFolder))
+ Directory.Delete (TempFolder, true);
+ Directory.CreateDirectory (TempFolder);
+
+ if (!File.Exists (_thisCodeFileName))
+ File.Create (_thisCodeFileName).Close ();
+ }
+
+ [TearDown]
+ public void TearDown ()
+ {
+ if (Directory.Exists (TempFolder))
+ Directory.Delete (TempFolder, true);
+ }
+
+ [Test] // .ctor (Stream)
+ public void Constructor1 ()
+ {
+ FileStream f = new FileStream(_codeFileName,
+ FileMode.Append,
+ FileAccess.Write);
+ StreamWriter r = new StreamWriter (f);
+ Assert.IsFalse (r.AutoFlush, "#1");
+ Assert.AreSame (f, r.BaseStream, "#2");
+ Assert.IsNotNull (r.Encoding, "#3");
+ Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#4");
+ r.Close();
+ f.Close();
+ }
+
+ [Test] // .ctor (Stream)
+ public void Constructor1_Stream_NotWritable ()
+ {
+ FileStream f = new FileStream (_thisCodeFileName, FileMode.Open,
+ FileAccess.Read);
+ try {
+ new StreamWriter (f);
+ Assert.Fail ("#B1");
+ } catch (ArgumentException ex) {
+ // Stream was not writable
+ Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
+ Assert.IsNull (ex.InnerException, "#3");
+ Assert.IsNotNull (ex.Message, "#4");
+ Assert.IsNull (ex.ParamName, "#5");
+ } finally {
+ f.Close ();
+ }
+ }
+
+ [Test] // .ctor (Stream)
+ public void Constructor1_Stream_Null ()
+ {
+ try {
+ new StreamWriter((Stream) null);
+ 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)
+ public void Constructor2 ()
+ {
+ // TODO - Security/Auth exceptions
+ using (StreamWriter r = new StreamWriter (_codeFileName)) {
+ Assert.IsFalse (r.AutoFlush, "#1");
+ Assert.IsNotNull (r.BaseStream, "#2");
+ Assert.AreEqual (typeof (FileStream), r.BaseStream.GetType (), "#3");
+ Assert.IsNotNull (r.Encoding, "#4");
+ Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#5");
+ r.Close ();
+ }
+ }
+
+ [Test] // .ctor (String)
+ public void Constructor2_Path_DirectoryNotFound ()
+ {
+ Directory.Delete (TempFolder, true);
+
+ try {
+ new StreamWriter (_codeFileName);
+ Assert.Fail ("#1");
+ } catch (DirectoryNotFoundException ex) {
+ // Could not find a part of the path '...'
+ Assert.AreEqual (typeof (DirectoryNotFoundException), ex.GetType (), "#2");
+ Assert.IsNull (ex.InnerException, "#3");
+ Assert.IsNotNull (ex.Message, "#4");
+ Assert.IsTrue (ex.Message.IndexOf (TempFolder) != -1, "#5");
+ }
+ }
+
+ [Test] // .ctor (String)
+ public void Constructor2_Path_Empty ()
+ {
+ try {
+ new StreamWriter (string.Empty);
+ Assert.Fail ("#1");
+ } catch (ArgumentException ex) {
+ // Empty path name is not legal
+ Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
+ Assert.IsNull (ex.InnerException, "#3");
+ Assert.IsNotNull (ex.Message, "#4");
+ Assert.IsNull (ex.ParamName, "#5");
+ }
+ }
+
+ [Test] // .ctor (String)
+ public void Constructor2_Path_IllegalChars ()
+ {
+ try {
+ new StreamWriter ("!$what? what? Huh? !$*#" + Path.InvalidPathChars [0]);
+ Assert.Fail ("#1");
+ } catch (ArgumentException ex) {
+ // Illegal characters in path
+ Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
+ Assert.IsNull (ex.InnerException, "#3");
+ Assert.IsNotNull (ex.Message, "#4");
+ Assert.IsNull (ex.ParamName, "#5");
+ }
+ }
+
+ [Test] // .ctor (String)
+ public void Constructor2_Path_Null ()
+ {
+ try {
+ new StreamWriter ((string) null);
+ 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 ("path", ex.ParamName, "#5");
+ }
+ }
+
+ [Test] // .ctor (Stream, Encoding)
+ public void Constructor3 ()
+ {
+ FileStream f = new FileStream (_codeFileName,
+ FileMode.Append,
+ FileAccess.Write);
+ StreamWriter r = new StreamWriter (f, Encoding.ASCII);
+ Assert.IsFalse (r.AutoFlush, "#1");
+ Assert.AreSame (f, r.BaseStream, "#2");
+ Assert.IsNotNull (r.Encoding, "#3");
+ Assert.AreEqual (typeof (ASCIIEncoding), r.Encoding.GetType (), "#4");
+ r.Close ();
+ f.Close ();
+ }
+
+ [Test] // .ctor (Stream, Encoding)
+ public void Constructor3_Encoding_Null ()
+ {
+ MemoryStream m = new MemoryStream ();
+ try {
+ new StreamWriter (m, (Encoding) null);
+ 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 ("encoding", ex.ParamName, "#5");
+ }
+ }
+
+ [Test] // .ctor (Stream, Encoding)
+ public void Constructor3_Stream_NotWritable ()
+ {
+ FileStream f = new FileStream (_thisCodeFileName, FileMode.Open,
+ FileAccess.Read);
+ try {
+ new StreamWriter (f, Encoding.UTF8);
+ Assert.Fail ("#B1");
+ } catch (ArgumentException ex) {
+ // Stream was not writable
+ Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
+ Assert.IsNull (ex.InnerException, "#3");
+ Assert.IsNotNull (ex.Message, "#4");
+ Assert.IsNull (ex.ParamName, "#5");
+ } finally {
+ f.Close ();
+ }
+ }
+
+ [Test] // .ctor (Stream, Encoding)
+ public void Constructor3_Stream_Null ()
+ {
+ try {
+ new StreamWriter ((Stream) null, Encoding.UTF8);
+ 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)
+ public void Constructor4 ()
+ {
+ using (StreamWriter r = new StreamWriter (_codeFileName, false)) {
+ 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 (UTF8Encoding), r.Encoding.GetType (), "#A5");
+ r.Close();
+ }
+
+ using (StreamWriter r = new StreamWriter(_codeFileName, true)) {
+ 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)
+ public void Constructor4_Path_DirectoryNotFound ()
+ {
+ Directory.Delete (TempFolder, true);
+
+ try {
+ new StreamWriter (_codeFileName, false);
+ 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);
+ 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)
+ public void Constructor4_Path_Empty ()
+ {
+ try {
+ new StreamWriter (string.Empty, false);
+ 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);
+ 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)
+ public void Constructor4_Path_InvalidChars ()
+ {
+ try {
+ new StreamWriter ("!$what? what? Huh? !$*#" + Path.InvalidPathChars [0], false);
+ 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);
+ 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)
+ public void Constructor4_Path_Null ()
+ {
+ try {
+ new StreamWriter ((string) null, false);
+ 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);
+ 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 (Stream, Encoding, Int32)
+ public void Constructor5 ()
+ {
+ MemoryStream m;
+ StreamWriter r;
+
+ m = new MemoryStream ();
+ r = new StreamWriter (m, Encoding.ASCII, 10);
+ Assert.IsFalse (r.AutoFlush, "#A1");
+ Assert.AreSame (m, r.BaseStream, "#A2");
+ Assert.IsNotNull (r.Encoding, "#A3");
+ Assert.AreEqual (typeof (ASCIIEncoding), r.Encoding.GetType (), "#A4");
+ r.Close ();
+ m.Close ();
+
+ m = new MemoryStream ();
+ r = new StreamWriter (m, Encoding.UTF8, 1);
+ Assert.IsFalse (r.AutoFlush, "#B1");
+ Assert.AreSame (m, r.BaseStream, "#B2");
+ Assert.IsNotNull (r.Encoding, "#B3");
+ Assert.AreEqual (typeof (UTF8Encoding), r.Encoding.GetType (), "#B4");
+ r.Close ();
+ m.Close ();
+ }
+
+ [Test] // .ctor (Stream, Encoding, Int32)
+ public void Constructor5_BufferSize_NotPositive ()
+ {
+ MemoryStream m = new MemoryStream ();
+
+ try {
+ new StreamWriter (m, 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");
+#if NET_2_0
+ Assert.AreEqual ("bufferSize", ex.ParamName, "#A5");
+#endif
+ }
+
+ try {
+ new StreamWriter (m, 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");
+#if NET_2_0
+ Assert.AreEqual ("bufferSize", ex.ParamName, "#B5");
+#endif
+ }
+ }
+
+ [Test] // .ctor (Stream, Encoding, Int32)
+ public void Constructor5_Encoding_Null ()
+ {
+ MemoryStream m = new MemoryStream ();
+ try {
+ new StreamWriter (m, (Encoding) null, 10);
+ 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 ("encoding", ex.ParamName, "#5");
+ }
+ }
+
+ [Test] // .ctor (Stream, Encoding, Int32)
+ public void Constructor5_Stream_NotWritable ()
+ {
+ FileStream f = new FileStream (_thisCodeFileName, FileMode.Open,
+ FileAccess.Read);
+ try {
+ new StreamWriter (f, Encoding.UTF8, 10);
+ Assert.Fail ("#B1");
+ } catch (ArgumentException ex) {
+ // Stream was not writable
+ Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
+ Assert.IsNull (ex.InnerException, "#3");
+ Assert.IsNotNull (ex.Message, "#4");
+ Assert.IsNull (ex.ParamName, "#5");
+ } finally {
+ f.Close ();
+ }
+ }
+
+ [Test] // .ctor (Stream, Encoding, Int32)
+ public void Constructor5_Stream_Null ()
+ {
+ try {
+ new StreamWriter ((Stream) null, Encoding.UTF8, 10);
+ 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");
+#if NET_2_0
+ Assert.AreEqual ("bufferSize", ex.ParamName, "#A5");
+#endif
+ }
+
+ 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");
+#if NET_2_0
+ Assert.AreEqual ("bufferSize", ex.ParamName, "#B5");
+#endif
+ }
+ }
+
+ [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");
+ }
+
+ // TODO - Write - test errors, functionality tested in TestFlush.
+}
+}
projects / mono.git / blobdiff