public void Peek_Case1(string prefixText, string readerText, int firstChar, int secondChar)
{
// Arrange
var r = new PrependableReader(CharPosition.BeginningOfFile, prefixText.ToArray(), new StringReader(readerText));
// Act
var ch0 = r.Peek();
r.Read();
var ch1 = r.Peek();
// Assert
Assert.That(ch0, Is.EqualTo(firstChar));
Assert.That(ch1, Is.EqualTo(secondChar));
}
public void Reattach_Case1(string prefixText, string readerText)
{
// Arrange
var r = new PrependableReader(CharPosition.BeginningOfFile, prefixText.ToArray(), new StringReader(readerText));
r.Read();
// Act
r.Reattach(CharPosition.BeginningOfFile, prefixText.ToArray());
var p = r.Position.Index;
var l = r.Position.Line;
var c = r.Position.Column;
var ch = r.Peek();
// Assert
Assert.That(p, Is.EqualTo(0));
Assert.That(l, Is.EqualTo(1));
Assert.That(c, Is.EqualTo(1));
Assert.That(ch, Is.EqualTo(prefixText.Length == 0 ? readerText[1] : (prefixText + readerText)[0]));
}
public void Reattach_Case2(string prefixText, string readerText)
{
// Arrange
var r = new PrependableReader(CharPosition.BeginningOfFile, prefixText.ToArray(), new StringReader(readerText));
r.Read();
r.Read();
r.Read();
// Act
r.Reattach(CharPosition.BeginningOfFile.NextColumn, "ab".ToArray());
var p = r.Position.Index;
var l = r.Position.Line;
var c = r.Position.Column;
var ch = r.Peek();
// Assert
Assert.That(p, Is.EqualTo(1));
Assert.That(l, Is.EqualTo(1));
Assert.That(c, Is.EqualTo(2));
Assert.That(ch, Is.EqualTo('a'));
Assert.That(r.ReadToEnd(), Is.EqualTo("ab3456789"));
}