public void SortedInsertation()
{
var pc = new PositionCollection();
pc.Create(0, Bias.Forward);
pc.Create(10, Bias.Backward);
pc.Create(6, Bias.Backward);
pc.Create(6, Bias.Forward);
pc.Contents().Should().BeInAscendingOrder(new TextPositionComparer());
}
public void Insert_After()
{
var pc = new PositionCollection();
var start = pc.Create(5, Bias.Forward);
var end = pc.Create(10, Bias.Backward);
pc.InsertAt(20, 10);
start.Offset.Should().Be(5);
end.Offset.Should().Be(10);
}
public void Remove_On_Start()
{
var pc = new PositionCollection();
var start = pc.Create(5, Bias.Forward);
var end = pc.Create(10, Bias.Backward);
pc.RemoveAt(5, 2);
start.Offset.Should().Be(5);
end.Offset.Should().Be(8);
}
public void Insert_WithEmptyElement()
{
var pc = new PositionCollection();
var firstStart = pc.Create(5, Bias.Forward);
var firstEnd = pc.Create(10, Bias.Backward);
var start = pc.Create(10, Bias.Forward);
var end = pc.Create(10, Bias.Backward);
pc.InsertAt(10, 10);
start.Offset.Should().Be(10);
end.Offset.Should().Be(20);
firstStart.Offset.Should().Be(5);
firstEnd.Offset.Should().Be(20);
}
public void BiasForward_OnPos_Ignores()
{
var pc = new PositionCollection();
var end = pc.Create(10, Bias.Forward);
pc.InsertAt(10, 10);
end.Offset.Should().Be(10);
}
public void BiasForward_Before_Shifts()
{
var pc = new PositionCollection();
var end = pc.Create(10, Bias.Forward);
pc.InsertAt(5, 10);
end.Offset.Should().Be(20);
}
public void BiasBackward_After_Ignored()
{
var pc = new PositionCollection();
var end = pc.Create(10, Bias.Backward);
pc.InsertAt(15, 10);
end.Offset.Should().Be(10);
}