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//
// TextWriterTest.cs
//
// Author:
// William Holmes <billholmes54@gmail.com>
//
//
using System;
using System.IO;
using System.Text;
using NUnit.Framework;
namespace MonoTests.System.IO
{
[TestFixture]
public class TextReaderTest
{
[Test]
public void TestNullReader ()
{
Assert.IsNotNull (TextReader.Null);
string name = TextReader.Null.GetType ().FullName;
Assert.AreEqual ("System.IO.TextReader+NullTextReader", name);
string linetest = TextReader.Null.ReadLine ();
Assert.IsNull (linetest, "We expect null");
string readtoendtest = TextReader.Null.ReadToEnd ();
Assert.AreEqual (string.Empty, readtoendtest, "Expect an empty string." );
int count = TextReader.Null.Read ();
Assert.AreEqual (-1, count);
}
[Test]
public void TestTextReaderReadLine() {
using(var reader = new TestTextReader("abc\n\ndef\r\nghi")) {
var line = reader.ReadLine();
Assert.AreEqual("abc", line, "first line (\\n)");
line = reader.ReadLine();
Assert.AreEqual("", line, "second line (empty)");
line = reader.ReadLine();
Assert.AreEqual("def", line, "third line (\\r\\n)");
line = reader.ReadLine();
Assert.AreEqual("ghi", line, "fourth line (last)");
line = reader.ReadLine();
Assert.AreEqual(null, line, "eof");
}
}
[Test]
public void TestTextReaderReadToEnd() {
using(var reader = new TestTextReader("abc\n\ndef\r\nghi")) {
var contents = reader.ReadToEnd();
Assert.AreEqual("abc\n\ndef\r\nghi", contents);
}
}
private class TestTextReader : TextReader {
TextReader reader;
public TestTextReader(string text)
{
this.reader = new StringReader(text);
}
public override int Peek()
{
return reader.Peek();
}
public override int Read()
{
return reader.Read();
}
}
}
}
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