private static ConcateRope CreateRope(int depth, int length)
{
Debug.Assert(depth >= 1);
var numOfParts = depth + 1;
var lengthOfParts = length / numOfParts;
var primitiveRope = new FlatRope(new String(' ', lengthOfParts));
Rope rope = primitiveRope;
for (var i = 1; i < numOfParts; i++) {
if (i < numOfParts - 1) {
rope = new ConcateRope(rope, primitiveRope);
}
else {
var lastRope = new FlatRope(new String(' ', length - rope.Length));
rope = new ConcateRope(rope, lastRope);
}
}
var concateRope = rope.As<ConcateRope>();
Debug.Assert(concateRope.Depth == depth);
Debug.Assert(concateRope.Length == length);
return concateRope;
}
public void SimplePropertiesShouldBeRight()
{
var hwRope = new ConcateRope(new FlatRope("Hello "), new FlatRope("World"));
hwRope.Depth.Should().Be(1);
var rope = new ConcateRope(new FlatRope("Say "), hwRope);
rope.Depth.Should().Be(2);
rope.Length.Should().Be("Say Hello World".Length);
rope.ToString().Should().Be("Say Hello World");
}