public void Reset_Case3()
{
// Arrange
var r = new ResettableReader(new StringReader("0123456789X"));
// Act
// Assert
Repeats(r.Read, 2);
Assert.That((char)r.Peek(), Is.EqualTo('2'));
r.Mark(); // 01[2]3456789X
Repeats(r.Read, 2);
Assert.That((char)r.Peek(), Is.EqualTo('4'));
r.Reset(false);
Assert.That((char)r.Peek(), Is.EqualTo('2'));
Repeats(r.Read, 2);
Assert.That((char)r.Peek(), Is.EqualTo('4'));
r.Reset(false);
Assert.That((char)r.Peek(), Is.EqualTo('2'));
Repeats(r.Read, 2);
Assert.That((char)r.Peek(), Is.EqualTo('4'));
Repeats(r.Read, 2);
Assert.That((char)r.Peek(), Is.EqualTo('6'));
r.Reset(false);
Assert.That((char)r.Peek(), Is.EqualTo('2'));
}
public void Reset_Case1(string text, int willMarkOn, int willResetOn, int willBreakOn)
{
// Arrange
var r = new ResettableReader(new StringReader(text));
var markedChar = '\u0000';
while (!r.EndOfFile)
{
if (willMarkOn == r.Position.Index)
{
markedChar = (char)r.Peek();
r.Mark();
}
if (willResetOn == r.Position.Index)
{
// Act
r.Reset(false);
// Assert
Assert.That(r.Position.Index, Is.EqualTo(willMarkOn));
Assert.That(r.Peek(), Is.EqualTo(markedChar));
if (--willBreakOn < 1)
{
break;
}
}
r.Read();
}
}
public void Unmark_Case4()
{
// Arrange
var r = new ResettableReader(new StringReader("0123456789X"));
// Act
// Assert
Repeats(r.Read, 2);
Assert.That(r.Peek(), Is.EqualTo('2'));
r.Mark();
Repeats(r.Read, 2);
Assert.That(r.Peek(), Is.EqualTo('4'));
r.Mark();
Repeats(r.Read, 2);
Assert.That(r.Peek(), Is.EqualTo('6'));
r.Unmark();
r.Unmark();
r.Mark();
Repeats(r.Read, 2);
Assert.That(r.Peek(), Is.EqualTo('8'));
r.Reset(false);
Assert.That(r.Peek(), Is.EqualTo('6'));
Assert.That(ReadsAll(r), Is.EqualTo("6789X"));
}
public void Unmark_Case1()
{
// Arrange
var r = new ResettableReader(new StringReader("0123456789X"));
Repeats(r.Read, 3);
r.Mark();
// Act
// Assert
r.Unmark();
r.Unmark();
}
public void Mark_Case1(string text, int willMarkOn, int readCountAfterMark)
{
// Arrange
var r = new ResettableReader(new StringReader(text));
Repeats(r.Read, willMarkOn);
// Act
r.Mark();
// Assert
Repeats(r.Read, readCountAfterMark);
r.Reset(false);
Assert.That(r.Peek(), Is.EqualTo(willMarkOn < text.Length ? text[willMarkOn] : -1));
}
public void Capture_Case2(string text, int willMarkOn, int readCountAfterMark)
{
// Arrange
var r = new ResettableReader(new StringReader(text));
Repeats(r.Read, willMarkOn);
r.Mark();
Repeats(r.Read, readCountAfterMark);
// Act
var cap = r.Capture(false);
// Assert
Assert.That(cap, Is.EqualTo(text.Substring(willMarkOn, readCountAfterMark)));
Assert.That(r.Position.Index, Is.EqualTo(willMarkOn + readCountAfterMark));
r.Reset(false);
Assert.That(r.Position.Index, Is.EqualTo(willMarkOn));
}
Reader(TextReader reader, bool callStack, Action <string> logAppender)
{
_inner = new ResettableReader(reader);
Context = new Context(this, callStack, logAppender);
}