public void Ctor_WhenEndOffsetIsLessThanStartOffset_ClampsEndOffsetToOneLessThanStart(int start, int end)
{
var range = new EdgeRange(start, end);
Assert.Equal(start, range.StartOffset);
Assert.Equal(start - 1, range.EndOffset);
Assert.Equal(0, range.Count);
Assert.True(range.IsEmpty);
}
public void LimitCountToEnd_WhenProvidingMaxLengthLessThanCount_MovesStartOffet()
{
var range = new EdgeRange(0, 9);
Assert.Equal(10, range.Count);
range.LimitCountToEnd(5);
Assert.Equal(5, range.Count);
Assert.Equal(9, range.EndOffset);
Assert.Equal(5, range.StartOffset);
}
public void LimitCountToEnd_IfMaxLengthIsNegative_ThrowsException()
{
var range = new EdgeRange(0, 10);
Assert.Throws <ArgumentOutOfRangeException>(() => range.LimitCountToEnd(-1));
}
public void Count_WhenStartEqualsEnd_Returns1(int offset)
{
var range = new EdgeRange(offset, offset);
Assert.Equal(1, range.Count);
}
