nomos-specs/carnot/test_tree_overlay.py

58 lines
2.1 KiB
Python

from unittest import TestCase
from carnot.tree_overlay import CarnotOverlay, CarnotTree
class TestCarnotTree(TestCase):
def setUp(self) -> None:
self.nodes = [int.to_bytes(i, length=32, byteorder="little") for i in range(10)]
self.tree = CarnotTree(self.nodes, 3)
def test_parenting(self):
root = self.tree.inner_committees[0]
one = self.tree.inner_committees[1]
two = self.tree.inner_committees[2]
self.assertIs(self.tree.parent_committee(one), root)
self.assertIs(self.tree.parent_committee(two), root)
def test_root_parenting(self):
root = self.tree.inner_committees[0]
self.assertIsNone(self.tree.parent_committee(root))
def test_childs(self):
root = self.tree.inner_committees[0]
one = self.tree.inner_committees[1]
two = self.tree.inner_committees[2]
self.assertEqual(self.tree.child_committees(root), (one, two))
class TestTreeOverlay(TestCase):
def setUp(self) -> None:
self.nodes = [int.to_bytes(i, length=32, byteorder="little") for i in range(10)]
self.tree = CarnotOverlay(self.nodes, self.nodes[0], b"0"*32, 3)
def test_leader(self):
self.assertEqual(self.tree.leader(), self.nodes[0])
def test_next_leader_is_advance_current_leader(self):
leader = self.tree.next_leader()
self.tree = self.tree.advance(b"1"*32)
self.assertEqual(leader, self.tree.leader())
def test_root_committee(self):
self.assertEqual(self.tree.root_committee(), set([self.nodes[9], *self.nodes[:3]]))
def test_leaf_committees(self):
self.assertEqual(self.tree.leaf_committees(), {frozenset(self.nodes[3:6]), frozenset(self.nodes[6:9])})
def test_super_majority_threshold_for_leaf(self):
self.assertEqual(self.tree.super_majority_threshold(self.nodes[-2]), 0)
def test_super_majority_threshold_for_root_member(self):
self.assertEqual(self.tree.super_majority_threshold(self.nodes[0]), 3)
def test_leader_super_majority_threshold(self):
self.assertEqual(self.tree.leader_super_majority_threshold(self.nodes[0]), 7)