public void FromSpanNotStartOfLineThrows()
{
var text = SourceText.From("abcdef");
Assert.Throws <ArgumentOutOfRangeException>(
() => TextLine.FromSpan(text, new TextSpan(1, 5))
);
}
public void FromSpanZeroLengthWithLineBreak()
{
var text = SourceText.From(Environment.NewLine);
var line = TextLine.FromSpan(text, new TextSpan(0, 0));
Assert.Equal("", line.ToString());
Assert.Equal(Environment.NewLine.Length, line.SpanIncludingLineBreak.Length);
}
public void FromSpanNoBreaksBeforeOrAfter()
{
var text = SourceText.From("foo");
var line = TextLine.FromSpan(text, new TextSpan(0, 3));
Assert.Equal("foo", line.ToString());
Assert.Equal(0, line.LineNumber);
}
public void FromSpanZeroLengthNotEndOfLineThrows()
{
var text = SourceText.From("abcdef");
Assert.Throws <ArgumentOutOfRangeException>(
() => TextLine.FromSpan(text, new TextSpan(0, 0))
);
}
public void FromSpanStartsBeforeZeroThrows()
{
var text = SourceText.From("abcdef");
Assert.Throws <ArgumentOutOfRangeException>(
() => TextLine.FromSpan(text, new TextSpan(-1, 2))
);
}
public void FromSpanLengthGreaterThanTextThrows()
{
var text = SourceText.From("abcdef");
Assert.Throws <ArgumentOutOfRangeException>(
() => TextLine.FromSpan(text, new TextSpan(1, 10))
);
}
public void FromSpanIncludingBreaks()
{
var text = SourceText.From("foo" + Environment.NewLine + "bar");
var span = TextSpan.FromBounds(0, 5);
var line = TextLine.FromSpan(text, span);
Assert.Equal(span, line.SpanIncludingLineBreak);
Assert.Equal(3, line.End);
Assert.Equal(0, line.LineNumber);
}
public void FromSpanNotIncludingBreaks()
{
var text = SourceText.From("foo" + Environment.NewLine);
var span = new TextSpan(0, 3);
var line = TextLine.FromSpan(text, span);
Assert.Equal(span, line.Span);
Assert.Equal(5, line.EndIncludingLineBreak);
Assert.Equal(0, line.LineNumber);
}
public void FromSpanZeroLengthAtEnd()
{
var text = SourceText.From("foo" + Environment.NewLine);
var start = text.Length;
var line = TextLine.FromSpan(text, new TextSpan(start, 0));
Assert.Equal("", line.ToString());
Assert.Equal(0, line.Span.Length);
Assert.Equal(0, line.SpanIncludingLineBreak.Length);
Assert.Equal(start, line.Start);
Assert.Equal(start, line.Span.Start);
Assert.Equal(start, line.SpanIncludingLineBreak.Start);
Assert.Equal(1, line.LineNumber);
}
public override TextLine this[int index]
{
get
{
if (index < 0 || index >= starts.Length)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
var start = starts[index];
if (index == starts.Length - 1)
{
return(TextLine.FromSpan(text, TextSpan.FromBounds(start, text.Length)));
}
var end = starts[index + 1];
return(TextLine.FromSpan(text, TextSpan.FromBounds(start, end)));
}
}
public override TextLine this[int index] {
get {
var line = sourceText.TextSnapshot.GetLineFromLineNumber(index);
return(TextLine.FromSpan(sourceText, TextSpan.FromBounds(line.Start, line.End)));
}
}
public override TextLine GetLineFromPosition(int position)
{
var line = textDoc.GetLineByOffset(position);
return(TextLine.FromSpan(parent, new TextSpan(line.Offset, line.Length)));
}
public override TextLine this [int index] {
get {
var line = textDoc.GetLine(index + 1);
return(TextLine.FromSpan(parent, new TextSpan(line.Offset, line.Length)));
}
}
public void FromSpanTextNullThrows()
{
var text = SourceText.From("abcdef");
Assert.Throws <ArgumentNullException>(() => TextLine.FromSpan(null, new TextSpan(0, 2)));
}