pluto/handler/tests/test_transactions.py

import logging
from copy import deepcopy
from unittest import TestCase
from unittest.mock import MagicMock

import lib.antifraud
import lib.money
import lib.transactions


class TestTransactions(TestCase):
    def setUp(self):
        logging.disable(logging.CRITICAL)
        self.transactions = lib.transactions.Transactions()
        self.test_data = {
            "timestamp": "2022-03-14T19:34:13.501Z",
            "description": "Received Rebiere Matthieu",
            "transaction_type": "CREDIT",
            "transaction_category": "CREDIT",
            "transaction_classification": [],
            "amount": 1,
            "currency": "GBP",
            "transaction_id": "ec4df5248c750c30301a1da71024ac0b",
            "provider_transaction_id": "27373011.TU9ORVRBUllfQUNUSVZJVFk6OjI1MDE4MDQyOjpUUkFOU0ZFUjo6MzgwMDM2NDY2",
            "normalised_provider_transaction_id": "txn-c8c12c308789bd980",
            "meta": {
                "provider_reference": "TEST-1",
                "transaction_type": "Credit",
                "provider_id": "27373011.TU9ORVRBUllfQUNUSVZJVFk6OjI1MDE4MDQyOjpUUkFOU0ZFUjo6MzgwMDM2NDY2",
                "counter_party_preferred_name": "Rebiere Matthieu",
            },
            "subclass": "truelayer",
        }

        # Mock redis calls
        lib.transactions.db.r.hgetall = self.mock_hgetall
        lib.transactions.db.r.hmset = self.mock_hmset
        lib.transactions.db.r.keys = self.mock_keys
        lib.transactions.db.r.get = self.mock_get

        # Mock some callbacks
        self.transactions.irc = MagicMock()
        self.transactions.irc.sendmsg = MagicMock()
        self.transactions.release_funds = MagicMock()
        self.transactions.ux = MagicMock()
        self.transactions.ux.notify = MagicMock()
        self.transactions.ux.notify.notify_complete_trade = MagicMock()
        self.transactions.antifraud = lib.antifraud.AntiFraud()

        # Mock the rates
        self.transactions.money = MagicMock()
        self.transactions.money.to_usd = self.mock_to_usd
        self.transactions.money.get_rates_all = MagicMock()
        self.transactions.money.get_rates_all.return_value = {"GBP": 0.8}

        # Don't mock the functions we want to test
        self.money = lib.money.Money()
        self.money.get_rates_all = MagicMock()
        self.money.get_rates_all.return_value = {"GBP": 0.8}
        self.transactions.money.get_acceptable_margins = (
            self.money.get_acceptable_margins
        )

        self.trades = {
            1: {
                "id": "uuid1",
                "buyer": "test_buyer_1",
                "currency": "GBP",
                "amount": "1",
                "amount_xmr": "0.3",
                "reference": "TEST-1",
                "subclass": "agora",
            },
            2: {
                "id": "uuid2",
                "buyer": "test_buyer_2",
                "currency": "GBP",
                "amount": "1",
                "amount_xmr": "0.3",
                "reference": "TEST-2",
                "subclass": "agora",
            },
            3: {
                "id": "uuid3",
                "buyer": "test_buyer_3",
                "currency": "GBP",
                "amount": "1000",
                "amount_xmr": "3",
                "reference": "TEST-3",
                "subclass": "agora",
            },
            4: {
                "id": "uuid4",
                "buyer": "test_buyer_4",
                "currency": "GBP",
                "amount": "10",
                "amount_xmr": "0.5",
                "reference": "TEST-4",
                "subclass": "agora",
            },
        }

        self.return_trades = [1, 2, 3]

    @property
    def test_data_copy(self):
        return deepcopy(self.test_data)

    def data_custom(self, amount, currency, reference):
        test_data = self.test_data_copy
        test_data["meta"]["provider_reference"] = reference
        test_data["amount"] = amount
        test_data["currency"] = currency
        return test_data

    def mock_hgetall(self, string):
        ref = string.split(".")[1]
        for num, trade in self.trades.items():
            if trade["reference"] == ref:
                return trade

    def mock_hmset(self, string, data):
        pass

    def mock_keys(self, string):
        return [v["id"] for k, v in self.trades.items() if k in self.return_trades]

    def mock_get(self, string):
        for num, trade in self.trades.items():
            if trade["id"] == string:
                return trade["reference"]

    def mock_to_usd(self, amount, currency):
        if currency == "GBP":
            return amount * 1.3
        elif currency == "USD":
            return amount
        # fuck it who cares
        elif currency == "SEK":
            return 100
        elif currency == "EUR":
            return 10

    def test_transaction(self):
        self.transactions.transaction(self.test_data)
        self.transactions.release_funds.assert_called_once_with("uuid1", "TEST-1")

        self.transactions.release_funds = MagicMock()
        ref_2 = self.test_data_copy
        ref_2["meta"]["provider_reference"] = "TEST-2"
        self.transactions.transaction(ref_2)
        self.transactions.release_funds.assert_called_once_with("uuid2", "TEST-2")

    def test_transaction_invalid(self):
        invalid_data = self.test_data_copy
        invalid_data = self.data_custom(2000, "SEK", "sss")
        self.transactions.transaction(invalid_data)
        self.transactions.release_funds.assert_not_called()

    def test_transaction_malformed(self):
        malformed_data = self.test_data_copy
        del malformed_data["amount"]
        self.transactions.transaction(malformed_data)
        self.transactions.release_funds.assert_not_called()

        malformed_data = self.test_data_copy
        del malformed_data["currency"]
        self.transactions.transaction(malformed_data)
        self.transactions.release_funds.assert_not_called()

    def test_transaction_no_reference_fail(self):
        no_reference_fail = self.data_custom(1, "GBP", "none")
        no_reference_fail["meta"]["provider_reference"] = "none"
        self.transactions.transaction(no_reference_fail)
        self.transactions.release_funds.assert_not_called()

    def test_transaction_no_reference_pass(self):
        no_reference_pass = self.data_custom(1, "GBP", "none")
        no_reference_pass["meta"]["provider_reference"] = "THIS_ONE_FAILS"
        self.return_trades = [1]
        self.transactions.transaction(no_reference_pass)
        self.transactions.release_funds.assert_called_with("uuid1", "TEST-1")

    def test_transaction_large(self):
        exceeds_max = self.data_custom(1000, "GBP", "TEST-3")
        self.transactions.transaction(exceeds_max)
        self.transactions.release_funds.assert_called_once_with("uuid3", "TEST-3")

    def test_transaction_no_reference_exceeds_max(self):
        exceeds_max = self.data_custom(1000, "GBP", "noref")
        self.transactions.transaction(exceeds_max)
        self.transactions.release_funds.assert_not_called()

    def test_transaction_wrong_currency(self):
        wrong_currency = self.data_custom(1, "EUR", "TEST-1")
        self.transactions.transaction(wrong_currency)
        self.transactions.release_funds.assert_not_called()

        wrong_currency = self.data_custom(1, "EUR", "none")
        self.transactions.transaction(wrong_currency)
        self.transactions.release_funds.assert_not_called()

    def test_transaction_wrong_amount(self):
        self.transactions.money.get_acceptable_margins = MagicMock()
        self.transactions.money.get_acceptable_margins.return_value = (0.8, 1.8)
        wrong_amount = self.data_custom(10, "GBP", "TEST-1")
        self.transactions.transaction(wrong_amount)
        self.transactions.release_funds.assert_not_called()

        wrong_amount = self.data_custom(10, "GBP", "none")
        self.transactions.transaction(wrong_amount)
        self.transactions.release_funds.assert_not_called()

    # def test_transaction_pending(self):
    #    pending_tx = self.test_data_copy
    #    pending_tx["data"]["state"] = "pending"
    #    self.transactions.transaction(pending_tx)
    #    self.transactions.release_funds.assert_not_called()

    def test_transaction_too_low(self):
        too_low = self.data_custom(5, "GBP", "TEST-1")
        self.transactions.transaction(too_low)
        self.transactions.release_funds.assert_not_called()

    def test_transaction_too_high(self):
        too_high = self.data_custom(15, "GBP", "TEST-1")
        self.transactions.transaction(too_high)
        self.transactions.release_funds.assert_not_called()

    # def test_transaction_pending_then_completed(self):
    #    pass

    def test_transaction_store_incomplete_trade(self):
        pass

    def test_transaction_release_incomplete_trade(self):
        pass

    def test_transaction_card_payment(self):
        pass

    def test_transaction_negative_amount(self):
        pass

    def test_release_funds(self):
        pass

    def test_new_trade(self):
        pass

    def test_find_trade(self):
        pass

    def test_get_refs(self):
        pass

    def test_get_ref_map(self):
        pass

    def test_get_ref(self):
        pass

    def test_del_ref(self):
        pass

    def test_cleanup(self):
        pass

    def test_tx_to_ref(self):
        pass

    def test_ref_to_tx(self):
        pass

    def test_get_total_usd(self):
        pass

    def test_get_total(self):
        pass

    def test_write_to_es(self):
        pass

    def test_get_remaining(self):
        pass

    def test_get_open_trades_usd(self):
        pass

    def test_get_total_remaining(self):
        pass

    def get_total_with_trades(self):
        pass