def test_get_statistics(self):
"""
Testing whether the API returns the correct statistics
"""
block = TrustChainBlock()
block.public_key = self.member.public_key
block.link_public_key = "deadbeef".decode("HEX")
block.link_sequence_number = 21
block.transaction = {"up": 42, "down": 8, "total_up": 1024, "total_down": 2048}
block.sequence_number = 3
block.previous_hash = "babecafe".decode("HEX")
block.signature = "babebeef".decode("HEX")
self.tc_community.persistence.add_block(block)
def verify_response(response):
response_json = json.loads(response)
self.assertTrue("statistics" in response_json)
stats = response_json["statistics"]
self.assertEqual(stats["id"], self.member.public_key.encode("HEX"))
self.assertEqual(stats["total_blocks"], 3)
self.assertEqual(stats["total_up"], 1024)
self.assertEqual(stats["total_down"], 2048)
self.assertEqual(stats["peers_that_pk_helped"], 1)
self.assertEqual(stats["peers_that_helped_pk"], 1)
self.assertIn("latest_block", stats)
self.assertNotEqual(stats["latest_block"]["insert_time"], "")
self.assertEqual(stats["latest_block"]["hash"], block.hash.encode("HEX"))
self.assertEqual(stats["latest_block"]["link_public_key"], "deadbeef")
self.assertEqual(stats["latest_block"]["link_sequence_number"], 21)
self.assertEqual(stats["latest_block"]["up"], 42)
self.assertEqual(stats["latest_block"]["down"], 8)
self.should_check_equality = False
return self.do_request('trustchain/statistics', expected_code=200).addCallback(verify_response)
def test_validate_existing_fraud(self):
# Arrange
db = MockDatabase()
(block1, block2, _, _) = TestBlocks.setup_validate()
db.add_block(block1)
db.add_block(block2)
# Act
block3 = TrustChainBlock(block2.pack_db_insert())
block3.previous_hash = sha256(str(random.randint(0, 100000))).digest()
block3.sign(block2.key)
result = block3.validate(db)
# Assert
self.assertEqual(result[0], ValidationResult.invalid)
self.assertIn("Double sign fraud", result[1])
def test_pack(self):
block = TrustChainBlock()
block.transaction = {'id': 3}
block.public_key = ' fish, so sad that it should come to this. - We tried to warn you all but '
block.sequence_number = 1869095012
block.link_public_key = 'ear! - You may not share our intellect, which might explain your disrespec'
block.link_sequence_number = 1949048934
block.previous_hash = 'or all the natural wonders that '
block.signature = 'grow around you. - So long, so long, and thanks for all the fish'
self.assertEqual(
block.pack(),
' fish, so sad that it should come to this. - We tried to warn you '
'all but oh dear! - You may not share our intellect, which might explain your '
'disrespect, for all the natural wonders that grow around you. - So long, '
'so long, and thanks for all the fish\x00\x00\x00\na1d2bid1i3')
def test_validate_existing_hash(self):
# Arrange
db = MockDatabase()
(block1, block2, block3, _) = TestBlocks.setup_validate()
db.add_block(block1)
db.add_block(block2)
db.add_block(block3)
# Act
block2 = TrustChainBlock(block2.pack_db_insert())
block2.previous_hash = sha256(str(random.randint(0, 100000))).digest()
block2.sign(db.get(block2.public_key, block2.sequence_number).key)
result = block2.validate(db)
# Assert
self.assertEqual(result[0], ValidationResult.invalid)
self.assertIn(
'Previous hash is not equal to the hash id of the previous block',
result[1])