def test_add_candidates(self, mock_db_manager,
mock_candidatesmanager_add_candidates):
processor = EventProcessor()
payload = add_candidates
# Case 1: voting already started -------------------------------------------------------------------------------
processor.started = "true"
result = processor.command_add_candidates(payload)
assert result == respond("VOTING ALREADY STARTED", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 2: voting not started yet, should call CandidatesManager.add_candidates()
processor.started = "false"
processor.admin_token = payload["administrator_token"]
processor.command_add_candidates(payload)
mock_candidatesmanager_add_candidates.assert_called_with(
payload["candidates_to_add"])
mock_candidatesmanager_add_candidates.reset_mock()
# --------------------------------------------------------------------------------------------------------------
# Case 3: voting not started yet, wrong token, should return the 403 response
processor.started = "false"
processor.admin_token = "abracadabra"
response = processor.command_add_voters(payload)
mock_candidatesmanager_add_candidates.assert_not_called()
assert response == respond("WRONG TOKEN, COMMAND REJECTED", 403)
def test_lock(self, mock_db_manager, mock_dbmanager_set_parameter):
processor = EventProcessor()
processor.db_manager.set_parameter = mock_dbmanager_set_parameter
payload = lock
# Case 1: system already locked --------------------------------------------------------------------------------
processor.locked = "true"
result = processor.command_lock(payload)
assert result == respond("SYSTEM ALREADY LOCKED", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 2: system not locked, should call DynamoDBManager.set_parameter() ---------------------------------------
processor.locked = "false"
processor.admin_token = payload["administrator_token"]
response = processor.command_lock(payload)
processor.db_manager.set_parameter.assert_called()
assert response == respond("SYSTEM LOCKED", 200)
# --------------------------------------------------------------------------------------------------------------
# Case 3: wrong token, reject command --------------------------------------------------------------------------
processor.locked = "false"
processor.admin_token = "abracadabra"
response = processor.command_lock(payload)
assert response == respond("WRONG TOKEN, COMMAND REJECTED", 403)
def command_lock(self, payload):
if self.locked == "true":
return respond("SYSTEM ALREADY LOCKED", 403)
if payload["administrator_token"] == self.admin_token:
self.db_manager.set_parameter(parameter="locked", value="true")
return respond("SYSTEM LOCKED", 200)
else:
return respond("WRONG TOKEN, COMMAND REJECTED", 403)
def command_add_voters(self, payload):
if self.started == "true":
return respond("VOTING ALREADY STARTED", 403)
if payload["administrator_token"] == self.admin_token:
response = VotersManager.add_voters(payload["voters_to_add"])
return response
else:
return respond("WRONG TOKEN, COMMAND REJECTED", 403)
def command_start(self, payload):
if self.locked == "false":
return respond("LOCK THE SYSTEM FIRST", 403)
if self.started == "true":
return respond("VOTING ALREADY STARTED", 403)
if payload["administrator_token"] == self.admin_token:
self.db_manager.set_parameter(parameter="started", value="true")
return respond("VOTING STARTED", 200)
else:
return respond("WRONG TOKEN, COMMAND REJECTED", 403)
def command_cast_vote(self, payload):
if self.started != "true":
return respond("VOTING NOT STARTED YET", 403)
voter = self.db_manager.get_voter(id=payload["voter_id"])
if voter["token"] == payload["voter_token"] and voter[
"voted"] == "false":
response = self.db_manager.add_vote(
voter_id=payload["voter_id"],
event_id=self.request_id,
candidate=payload["candidate_full_name"])
return response
else:
return respond("WRONG TOKEN OR ALREADY VOTED, COMMAND REJECTED",
403)
def test_start(self, mock_db_manager, mock_dbmanager_set_parameter):
processor = EventProcessor()
processor.db_manager.set_parameter = mock_dbmanager_set_parameter
payload = start
# Case 1: system not locked ------------------------------------------------------------------------------------
processor.locked = "false"
result = processor.command_start(payload)
assert result == respond("LOCK THE SYSTEM FIRST", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 2: voting already started -------------------------------------------------------------------------------
processor.locked = "true"
processor.started = "true"
processor.admin_token = payload["administrator_token"]
response = processor.command_start(payload)
assert response == respond("VOTING ALREADY STARTED", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 3: start normally ---------------------------------------------------------------------------------------
processor.locked = "true"
processor.started = "false"
processor.admin_token = payload["administrator_token"]
response = processor.command_start(payload)
processor.db_manager.set_parameter.assert_called()
processor.db_manager.set_parameter.reset_mock()
assert response == respond("VOTING STARTED", 200)
# --------------------------------------------------------------------------------------------------------------
# Case 4: wrong token, reject command --------------------------------------------------------------------------
processor.locked = "true"
processor.started = "false"
processor.admin_token = "abracadabra"
response = processor.command_start(payload)
processor.db_manager.set_parameter.assert_not_called()
processor.db_manager.set_parameter.reset_mock()
assert response == respond("WRONG TOKEN, COMMAND REJECTED", 403)
def add_vote(self, voter_id, event_id, candidate):
if not self.get_candidate(candidate):
return respond(
"NO SUCH CANDIDATE, PLEASE ENTER THE CORRECT FULL NAME", 404)
# Set voted status to pending
self.mark_voter(voter_id, "pending")
try:
self.mark_voter(voter_id, "true")
response = self.votes_table.put_item(Item={
"event_id": event_id,
"candidate": candidate
})
email_client = boto3.client("ses", region_name="eu-west-1")
sender_email = self.get_parameter("sender_email")
voter_email = self.get_voter(voter_id)["email"]
email_client.send_email(
Source=sender_email,
Destination={"ToAddresses": [
voter_email,
]},
Message={
"Subject": {
"Data": "Successfuly voted!"
},
"Body": {
"Text": {
"Data":
"Congats! You've successfully voted for the candidate {candidate}!"
.format(candidate=candidate)
}
}
})
return respond(
'Congratulations! You have successfully cast your vote for the candidate {candidate}!'
.format(candidate=candidate), 200)
except Exception as e:
self.mark_voter(voter_id, "false")
return respond("ERROR, VOTE NOT CAST", 500)
def test_get_candidates(self, mock_db_manager):
processor = EventProcessor()
processor.db_manager.get_candidates = (lambda: "CALLED")
payload = get_candidates
# Case 1: voting not started yet -------------------------------------------------------------------------------
processor.started = "false"
result = processor.command_get_candidates(payload)
assert result == respond("VOTING NOT STARTED YET", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 2: voting started, should call DynamoDbManager.get_candidates() -----------------------------------------
processor.started = "true"
response = processor.command_get_candidates(payload)
assert response == respond("CALLED", 200)
def test_add_vote(self, mock_boto3_resource, mock_boto3_client):
manager = DynamoDBManager()
voter_id = "1337"
event_id = "1111"
candidate = "Person Personson"
# Case 1: everything is normal ---------------------------------------------------------------------------------
response = manager.add_vote(voter_id, event_id, candidate)
assert response == respond(
'Congratulations! You have successfully cast your vote for the candidate {candidate}!'
.format(candidate=candidate), 200)
# --------------------------------------------------------------------------------------------------------------
# Case 2: no such candidate ------------------------------------------------------------------------------------
manager.get_candidate = (lambda candidate_name: None)
response = manager.add_vote(voter_id, event_id, candidate)
assert response == respond(
"NO SUCH CANDIDATE, PLEASE ENTER THE CORRECT FULL NAME", 404)
def command_get_candidates(self, payload):
# Note that no token is required for this command
if self.started == "false":
return respond("VOTING NOT STARTED YET", 403)
return respond(str(self.db_manager.get_candidates()), 200)
def process_event(self, payload):
event_type = self._determine_event(payload)
if event_type != "UNKNOWN EVENT TYPE":
return self._delegate_event(event_type, payload)
else:
return respond("EVENT VALIDATION FAILED", 400)
def test_cast_vote(self, mock_db_manager, mock_dbmanager_add_vote,
mock_dbmanager_get_voter):
processor = EventProcessor()
processor.db_manager.get_voter = mock_dbmanager_get_voter
processor.db_manager.add_vote = mock_dbmanager_add_vote
processor.request_id = 1111
payload = cast_vote
# Case 1: voting not started -----------------------------------------------------------------------------------
processor.started = "false"
result = processor.command_cast_vote(payload)
assert result == respond("VOTING NOT STARTED YET", 403)
processor.db_manager.get_voter.assert_not_called()
processor.db_manager.add_vote.assert_not_called()
# --------------------------------------------------------------------------------------------------------------
# Case 2: cast vote normally -----------------------------------------------------------------------------------
processor.started = "true"
processor.db_manager.get_voter.return_value = {
"voted": "false",
"token": payload["voter_token"]
}
processor.command_cast_vote(payload)
processor.db_manager.get_voter.assert_called_with(
id=payload["voter_id"])
processor.db_manager.add_vote.assert_called_with(
voter_id=payload["voter_id"],
event_id=processor.request_id,
candidate=payload["candidate_full_name"])
processor.db_manager.get_voter.reset_mock()
processor.db_manager.add_vote.reset_mock()
# --------------------------------------------------------------------------------------------------------------
# Case 3: wrong token, rejected --------------------------------------------------------------------------------
processor.locked = "true"
processor.started = "true"
processor.db_manager.get_voter.return_value = {
"voted": "false",
"token": "actually a different token"
}
response = processor.command_cast_vote(payload)
processor.db_manager.get_voter.assert_called_with(
id=payload["voter_id"])
processor.db_manager.add_vote.assert_not_called()
processor.db_manager.get_voter.reset_mock()
processor.db_manager.add_vote.reset_mock()
assert response == respond(
"WRONG TOKEN OR ALREADY VOTED, COMMAND REJECTED", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 4: another vote being processed, rejected ---------------------------------------------------------------
processor.locked = "true"
processor.started = "true"
processor.db_manager.get_voter.return_value = {
"voted": "pending",
"token": payload["voter_token"]
}
response = processor.command_cast_vote(payload)
processor.db_manager.get_voter.assert_called_with(
id=payload["voter_id"])
processor.db_manager.add_vote.assert_not_called()
processor.db_manager.get_voter.reset_mock()
processor.db_manager.add_vote.reset_mock()
assert response == respond(
"WRONG TOKEN OR ALREADY VOTED, COMMAND REJECTED", 403)
# --------------------------------------------------------------------------------------------------------------
# Case 5: voter already voted ----------------------------------------------------------------------------------
processor.locked = "true"
processor.started = "true"
processor.db_manager.get_voter.return_value = {
"voted": "true",
"token": payload["voter_token"]
}
response = processor.command_cast_vote(payload)
processor.db_manager.get_voter.assert_called_with(
id=payload["voter_id"])
processor.db_manager.add_vote.assert_not_called()
processor.db_manager.get_voter.reset_mock()
processor.db_manager.add_vote.reset_mock()
assert response == respond(
"WRONG TOKEN OR ALREADY VOTED, COMMAND REJECTED", 403)
