public void Update_Replace()
{
// Arrange
var textBuffer = new TestTextBuffer(new StringTextSnapshot("original"));
var replace = new VisualStudioTextChange(0, textBuffer.CurrentSnapshot.Length, "replaced text");
var document = new TestVirtualDocument(Uri, textBuffer);
// Act
document.Update(new[] { replace }, hostDocumentVersion: 1);
// Assert
var text = textBuffer.CurrentSnapshot.GetText();
Assert.Equal(replace.NewText, text);
}
public void Update_Delete()
{
// Arrange
var textBuffer = new TestTextBuffer(new StringTextSnapshot("Hello World"));
var delete = new VisualStudioTextChange(6, 5, string.Empty);
var document = new TestVirtualDocument(Uri, textBuffer);
// Act
document.Update(new[] { delete }, hostDocumentVersion: 1);
// Assert
var text = textBuffer.CurrentSnapshot.GetText();
Assert.Equal("Hello ", text);
}
public void Update_Insert()
{
// Arrange
var insert = new VisualStudioTextChange(0, 0, "inserted text");
var textBuffer = new TestTextBuffer(StringTextSnapshot.Empty);
var document = new TestVirtualDocument(Uri, textBuffer);
// Act
document.Update(new[] { insert }, hostDocumentVersion: 1);
// Assert
var text = textBuffer.CurrentSnapshot.GetText();
Assert.Equal(insert.NewText, text);
}
public void Update_MultipleEdits()
{
// Arrange
var textBuffer = new TestTextBuffer(new StringTextSnapshot("Hello World"));
var replace = new VisualStudioTextChange(6, 5, "Replaced");
var delete = new VisualStudioTextChange(0, 6, string.Empty);
using var document = new TestVirtualDocument(Uri, textBuffer);
// Act
document.Update(new[] { replace, delete }, hostDocumentVersion: 1, state: null);
// Assert
var text = textBuffer.CurrentSnapshot.GetText();
Assert.Equal("Replaced", text);
}