testScalar

 version (showAssertTags) dbg();
	testScalar!(8,
				bool,
				double, float,
				long, int, short, byte,
				ulong, uint, ushort, ubyte);

 version (showAssertTags) dbg();
	alias Key = ubyte;
	auto set = RadixTreeSet!(Key, TestAllocator)();

	assert(!set.root);

	foreach (immutable i; 0 .. 7)
	{
		assert(!set.contains(i));
		assert(set.insert(i));
		assert(set.root.peek!HeptLeaf1);
	}

	foreach (immutable i; 7 .. 48)
	{
		assert(!set.contains(i));
		assert(set.insert(i));
		assert(set.root.peek!(SparseLeaf1!void*));
	}

	foreach (immutable i; 48 .. 256)
	{
		assert(!set.contains(i));
		assert(set.insert(i));
		assert(set.root.peek!(DenseLeaf1!void*));
	}