public void InsideLineBreak()
{
Create("dog", "cat");
var column = SnapshotOverlapColumn.GetColumnForSpaces(_textBuffer.GetLine(0), spaces: 4, tabStop: 4);
Assert.True(column.IsNone());
}
private SnapshotOverlapColumnSpan GetSpanFromSpaceAndCount(ITextSnapshotLine line, int start, int count, int tabStop)
{
var startColumn = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(line, start, tabStop);
var endColumn = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(line, start + count, tabStop);
return(new SnapshotOverlapColumnSpan(startColumn, endColumn, tabStop));
}
public void AtEnd()
{
Create("dog", "cat");
var column = SnapshotOverlapColumn.GetColumnForSpaces(_textBuffer.GetLine(1), spaces: 3, tabStop: 4);
AssertColumn(column, expected: SnapshotColumn.GetEndColumn(_textBuffer.CurrentSnapshot), spacesBefore: 0, spacesAfter: 0);
}
public void PartialTab()
{
Create("d\tog", "extra");
var column = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(_textBuffer.GetLine(0), spaces: 4, tabStop: 4);
Assert.Equal(_textBuffer.GetColumnFromPosition(position: 2), column.Column);
}
public void PartialTab()
{
Create("d\tog", "extra");
var column = SnapshotOverlapColumn.GetColumnForSpaces(_textBuffer.GetLine(0), spaces: 2, tabStop: 4);
AssertColumn(column, expected: _textBuffer.GetColumnFromPosition(1), spacesBefore: 1, spacesAfter: 1, spacesTotal: 3);
}
public void Simple()
{
Create("dog", "cat");
var column = SnapshotOverlapColumn.GetColumnForSpaces(_textBuffer.GetLine(0), spaces: 1, tabStop: 4);
AssertColumn(column, expected: _textBuffer.GetColumnFromPosition(1), spacesBefore: 0, spacesAfter: 0);
}
public void SimpleNonColumnZero()
{
Create("cat");
var point = new SnapshotOverlapColumn(_textBuffer.GetColumnFromPosition(1), beforeSpaces: 0, totalSpaces: 1, tabStop: 4);
Assert.Equal(0, point.SpacesBefore);
Assert.Equal(0, point.SpacesAfter);
}
public void TabEnd()
{
Create("\t");
var point = new SnapshotOverlapColumn(_textBuffer.GetColumnFromPosition(0), beforeSpaces: 3, totalSpaces: 4, tabStop: 4);
Assert.Equal(3, point.SpacesBefore);
Assert.Equal(0, point.SpacesAfter);
}
public void AfterTab()
{
Create("d\tog", "extra");
var column = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(_textBuffer.GetLine(0), spaces: 5, tabStop: 4);
Assert.Equal(_textBuffer.GetColumnFromPosition(position: 3), column.Column);
Assert.True(column.Column.IsCharacter('g'));
}
public void Simple()
{
Create("dog");
var column = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(_textBuffer.GetLine(0), spaces: 0, tabStop: 4);
Assert.Equal(4, column.TabStop);
Assert.Equal(8, column.WithTabStop(8).TabStop);
}
public void TabMiddle()
{
Create("\t");
var point = new SnapshotOverlapColumn(_textBuffer.GetColumnFromPosition(0), beforeSpaces: 1, totalSpaces: 4, tabStop: 4);
Assert.Equal(1, point.SpacesBefore);
Assert.Equal(2, point.SpacesAfter);
Assert.Equal(4, point.TotalSpaces);
}
public void PartialTab2()
{
Create("d\tog", "extra");
var column = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(_textBuffer.GetLine(0), spaces: 2, tabStop: 4);
Assert.Equal(1, column.SpacesBefore);
Assert.Equal(3, column.TotalSpaces);
Assert.Equal(_textBuffer.GetColumnFromPosition(position: 1), column.Column);
}
public void EndOfBuffer()
{
Create("cat");
var point = new SnapshotOverlapColumn(_textBuffer.GetEndColumn(), 0, 0, tabStop: 4);
Assert.Equal(0, point.TotalSpaces);
Assert.Equal(0, point.SpacesBefore);
Assert.Equal(0, point.SpacesAfter);
}
public void SimpleSurrogatePair()
{
const string alien = "\U0001F47D"; // 👽
Create($"{alien} dog", "cat");
var column = SnapshotOverlapColumn.GetColumnForSpaces(_textBuffer.GetLine(0), spaces: 2, tabStop: 4);
AssertColumn(column, expected: _textBuffer.GetColumnFromPosition(2), spacesBefore: 0, spacesAfter: 0);
}
public void WithTab()
{
Create("\tdog");
var column = SnapshotOverlapColumn.GetColumnForSpacesOrEnd(_textBuffer.GetLine(0), spaces: 2, tabStop: 4);
Assert.Equal(4, column.TabStop);
Assert.Equal(2, column.SpacesBefore);
column = column.WithTabStop(1);
Assert.True(column.Column.IsCharacter('o'));
Assert.Equal(0, column.SpacesBefore);
}
private static void AssertColumn(SnapshotOverlapColumn actual, SnapshotColumn?expected = null, int?spacesBefore = null, int?spacesAfter = null, int?spacesTotal = null)
{
if (expected != null)
{
Assert.Equal(expected.Value, actual.Column);
}
if (spacesBefore != null)
{
Assert.Equal(spacesBefore.Value, actual.SpacesBefore);
}
if (spacesAfter != null)
{
Assert.Equal(spacesAfter.Value, actual.SpacesAfter);
}
if (spacesTotal != null)
{
Assert.Equal(spacesTotal.Value, actual.TotalSpaces);
}
}
public void AtLineBreak()
{
Create("dog", "cat");
var column = SnapshotOverlapColumn.GetColumnForSpaces(_textBuffer.GetLine(0), spaces: 3, tabStop: 4);
}
