public void ReadLine_Case1()
{
// Arrange
var r0 = new PrependableReader(CharPosition.BeginningOfFile, "012\n34".ToArray(), new StringReader("5\r\n6789"));
var r1 = new PrependableReader(CharPosition.BeginningOfFile, "012\r\n34".ToArray(), new StringReader("5\n6789"));
var r2 = new PrependableReader(CharPosition.BeginningOfFile, "012\r\n34".ToArray(), new StringReader("5\n6789"));
r1.Read();
r2.Read();
r2.Read();
r2.Read();
// Act
var s0 = r0.ReadLine();
var s0_1 = r0.ReadLine();
var s0_2 = r0.ReadLine();
var s0_3 = r0.ReadLine();
var s1 = r1.ReadLine();
var s1_1 = r1.ReadLine();
var s1_2 = r1.ReadLine();
var s1_3 = r1.ReadLine();
var s2 = r2.ReadLine();
// Assert
Assert.That(s0, Is.EqualTo("012"));
Assert.That(s0_1, Is.EqualTo("345"));
Assert.That(s0_2, Is.EqualTo("6789"));
Assert.That(s0_3, Is.Null);
Assert.That(s1, Is.EqualTo("12"));
Assert.That(s1_1, Is.EqualTo("345"));
Assert.That(s1_2, Is.EqualTo("6789"));
Assert.That(s1_3, Is.Null);
Assert.That(s2, Is.Empty);
}
public void ReadToEnd_Case2()
{
// Arrange
var r0 = new PrependableReader(CharPosition.BeginningOfFile, "01234".ToArray(), new StringReader("56789"));
var s0 = r0.ReadToEnd();
// Act
var s1 = r0.ReadToEnd();
// Assert
Assert.That(s1, Is.Null);
}
public void PositionIndex_Case2(string prefixText, string readerText, int resultIndex)
{
// Arrange
var r = new PrependableReader(CharPosition.BeginningOfFile, prefixText.ToArray(), new StringReader(readerText));
ConsumesAll(r);
// Act
var p1 = r.Position.Index;
// Assert
Assert.That(p1, Is.EqualTo(resultIndex));
}
public void Read_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.Read();
var ch1 = r.Read();
// Assert
Assert.That(ch0, Is.EqualTo(firstChar));
Assert.That(ch1, Is.EqualTo(secondChar));
}
public void PositionColumn_Case1(string prefixText, string readerText)
{
// Arrange
var r = new PrependableReader(CharPosition.BeginningOfFile, prefixText.ToArray(), new StringReader(readerText));
r.Read();
r.Read();
// Act
var c0 = r.Position.Column;
r.Read();
var c1 = r.Position.Column;
// Assert
Assert.That(c0, Is.EqualTo(3));
Assert.That(c1, Is.EqualTo(1));
}
public void PositionLine_Case1(string prefixText, string readerText)
{
// Arrange
var r = new PrependableReader(CharPosition.BeginningOfFile, prefixText.ToArray(), new StringReader(readerText));
r.Read();
r.Read();
// Act
var l0 = r.Position.Line;
r.Read();
var l1 = r.Position.Line;
// Assert
Assert.That(l0, Is.EqualTo(1));
Assert.That(l1, Is.EqualTo(2));
}
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"));
}
