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from datetime import datetime
import pytest
from email_service.manager import Message
from parsers.base import Currency, ExpenseCategory
from parsers.expense import Expense
from parsers.parser import EmailParser, ExpenseType
from parsers.transference import Transference
remitent = "test@test.com"
banco_chile_remitent = "enviodigital@bancochile.cl"
santander_remitent = "mensajeria@santander.cl"
time_obj = datetime(year=2025, month=9, day=12, hour=12, minute=30)
BANK = "banco_chile"
def test_amount_data_usd():
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_usd.txt", encoding="utf-8") as f:
usd_expense = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg_usd = Message(banco_chile_remitent, subject, time_obj, usd_expense)
expense = parser.get_expense(msg_usd)
assert isinstance(expense, Expense)
assert expense.value == 20.88
assert expense.currency == Currency.USD
assert expense.commerce == "APPLE.COM BILL CUPERTINO US"
assert expense.category == ExpenseCategory.ONLINE, f"Invalid category for {expense.commerce}"
assert expense.date == time_obj
@pytest.mark.parametrize(
("bank", "amount", "commerce", "cat", "test_remitent"),
[
("banco_chile", 38844, "STA ISABEL JM CAR", ExpenseCategory.FOOD, banco_chile_remitent),
("santander", 68885, "Entel pcs", ExpenseCategory.SERVICES, santander_remitent),
],
)
def test_amount_data_clp(bank, amount, commerce, cat, test_remitent):
parser = EmailParser(bank)
parser.build_parser()
with open(f"tests/banks/{bank}/purchase_clp.txt", encoding="utf-8") as f:
clp_expense = f.read()
with open(f"tests/banks/{bank}/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg_clp = Message(test_remitent, subject, time_obj, clp_expense)
expense = parser.get_expense(msg_clp)
assert isinstance(expense, Expense)
assert expense.value == amount
assert expense.commerce == commerce
assert expense.currency == Currency.CLP
assert expense.category == cat, f"Invalid category for {expense.commerce}"
assert expense.date == time_obj
def test_amount_data_clp_with_number():
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_clp_number.txt", encoding="utf-8") as f:
clp_expense_with_number = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg_clp_num = Message(banco_chile_remitent, subject, time_obj, clp_expense_with_number)
expense = parser.get_expense(msg_clp_num)
assert isinstance(expense, Expense)
assert expense.value == 22737.0
assert expense.currency == Currency.CLP
assert expense.commerce == "LOCAL 6496-12-12"
assert expense.category == ExpenseCategory.GENERAL, f"Invalid category for {expense.commerce}"
assert expense.date == time_obj
def test_parse_data_giro():
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/withdrawal.txt", encoding="utf-8") as f:
data = f.read()
with open("tests/banks/banco_chile/withdrawal_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message(banco_chile_remitent, subject, time_obj, data)
expense = parser.get_expense(msg)
assert isinstance(expense, Expense)
assert expense.value == 20000.0
assert expense.currency == Currency.CLP
assert expense.category == ExpenseCategory.ATM_WITHDRAWAL
assert expense.date == time_obj
@pytest.mark.parametrize(
("bank", "amount", "recipient", "test_remitent"),
[
("banco_chile", 6000, "Some Person", "serviciodetransferencias@bancochile.cl"),
("santander", 53000, "Pablo Farfan", santander_remitent),
],
)
def test_parse_transference(bank, amount, recipient, test_remitent):
parser = EmailParser(bank)
parser.build_parser()
with open(f"tests/banks/{bank}/transference.txt", encoding="utf-8") as f:
data = f.read()
with open(f"tests/banks/{bank}/transference_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message(test_remitent, subject, time_obj, data)
transference = parser.get_transference(msg)
assert isinstance(transference, Transference)
assert transference.value == amount
assert transference.currency == Currency.CLP
assert transference.recipient == recipient
assert transference.category == ExpenseCategory.GENERAL
assert transference.date == time_obj
def test_parse_app_transference():
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/transference_app.txt", encoding="utf-8") as f:
data = f.read()
with open("tests/banks/banco_chile/transference_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message("serviciodetransferencias@bancochile.cl", subject, time_obj, data)
transference = parser.get_transference(msg)
assert isinstance(transference, Transference)
assert transference.value == 10000.0
assert transference.currency == Currency.CLP
assert transference.recipient == "Medio De Pago Fintoc"
assert transference.category == ExpenseCategory.FAMILY
assert transference.date == time_obj
# REMITENT VALIDATION TESTS
def test_remitent_validation_valid_banco_chile():
"""Test that valid banco_chile remitent is accepted."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_clp.txt", encoding="utf-8") as f:
clp_expense = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message(banco_chile_remitent, subject, time_obj, clp_expense)
expense = parser.get_expense(msg)
assert expense is not None
assert isinstance(expense, Expense)
def test_remitent_validation_invalid_banco_chile():
"""Test that invalid remitent for banco_chile is rejected."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_clp.txt", encoding="utf-8") as f:
clp_expense = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
invalid_remitent = "spam@malicious.com"
msg = Message(invalid_remitent, subject, time_obj, clp_expense)
expense = parser.get_expense(msg)
assert expense is None
def test_remitent_validation_transference_valid():
"""Test that valid remitent for transferences is accepted."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/transference.txt", encoding="utf-8") as f:
data = f.read()
with open("tests/banks/banco_chile/transference_subject.txt", encoding="utf-8") as f:
subject = f.read()
valid_remitent = "serviciodetransferencias@bancochile.cl"
msg = Message(valid_remitent, subject, time_obj, data)
transference = parser.get_transference(msg)
assert transference is not None
assert isinstance(transference, Transference)
def test_remitent_validation_transference_invalid():
"""Test that invalid remitent for transferences is rejected."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/transference.txt", encoding="utf-8") as f:
data = f.read()
with open("tests/banks/banco_chile/transference_subject.txt", encoding="utf-8") as f:
subject = f.read()
invalid_remitent = "fake@phishing.com"
msg = Message(invalid_remitent, subject, time_obj, data)
transference = parser.get_transference(msg)
assert transference is None
def test_remitent_validation_santander():
"""Test that valid santander remitent is accepted."""
parser = EmailParser("santander")
parser.build_parser()
with open("tests/banks/santander/purchase_clp.txt", encoding="utf-8") as f:
expense_data = f.read()
with open("tests/banks/santander/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message(santander_remitent, subject, time_obj, expense_data)
expense = parser.get_expense(msg)
assert expense is not None
assert isinstance(expense, Expense)
def test_remitent_extraction_with_name():
"""Test that remitent with format 'Name <email>' is correctly extracted."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_clp.txt", encoding="utf-8") as f:
clp_expense = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
# Test with "Name <email>" format
remitent_with_name = "Banco de Chile <enviodigital@bancochile.cl>"
msg = Message(remitent_with_name, subject, time_obj, clp_expense)
expense = parser.get_expense(msg)
assert expense is not None
assert isinstance(expense, Expense)
def test_remitent_extraction_plain_email():
"""Test that plain email remitent works."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_clp.txt", encoding="utf-8") as f:
clp_expense = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message(banco_chile_remitent, subject, time_obj, clp_expense)
expense = parser.get_expense(msg)
assert expense is not None
def test_remitent_extraction_case_insensitive():
"""Test that remitent matching is case insensitive."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_clp.txt", encoding="utf-8") as f:
clp_expense = f.read()
with open("tests/banks/banco_chile/purchase_subject.txt", encoding="utf-8") as f:
subject = f.read()
# Test with uppercase email
remitent_upper = "ENVIODIGITAL@BANCOCHILE.CL"
msg = Message(remitent_upper, subject, time_obj, clp_expense)
expense = parser.get_expense(msg)
assert expense is not None
# REGEX PATTERN TESTS
def test_purchase_pattern_compra_con_tarjeta():
"""Test that the new 'compra con tarjeta' pattern is matched."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/purchase_card.txt", encoding="utf-8") as f:
expense_data = f.read()
with open("tests/banks/banco_chile/purchase_card_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message(banco_chile_remitent, subject, time_obj, expense_data)
expense = parser.get_expense(msg)
assert expense is not None
assert isinstance(expense, Expense)
assert expense.value == 15990.0
assert expense.currency == Currency.CLP
assert expense.commerce == "MERCADO PAGO"
def test_classify_message_purchase_cargo_en_cuenta():
"""Test that 'cargo en cuenta' subject is classified as PURCHASE."""
parser = EmailParser(BANK)
parser.build_parser()
msg = Message(banco_chile_remitent, "Cargo en cuenta", time_obj, "body")
expense_type = parser._classify_message(msg)
assert expense_type == ExpenseType.PURCHASE
def test_classify_message_purchase_compra_con_tarjeta():
"""Test that 'compra con tarjeta' subject is classified as PURCHASE."""
parser = EmailParser(BANK)
parser.build_parser()
msg = Message(banco_chile_remitent, "Compra con Tarjeta de Crédito", time_obj, "body")
expense_type = parser._classify_message(msg)
assert expense_type == ExpenseType.PURCHASE
def test_classify_message_exclusion():
"""Test that exclusion pattern rejects the message."""
parser = EmailParser(BANK)
parser.build_parser()
msg = Message(banco_chile_remitent, "Transferencia entre mis cuentas", time_obj, "body")
expense_type = parser._classify_message(msg)
assert expense_type is None
def test_classify_message_withdrawal():
"""Test that 'giro' subject is classified as WITHDRAWAL."""
parser = EmailParser(BANK)
parser.build_parser()
msg = Message(banco_chile_remitent, "Giro en cajero", time_obj, "body")
expense_type = parser._classify_message(msg)
assert expense_type == ExpenseType.WITHDRAWAL
def test_classify_message_transference():
"""Test that 'transferencia' subject is classified as TRANSFERENCE."""
parser = EmailParser(BANK)
parser.build_parser()
msg = Message(banco_chile_remitent, "Transferencia realizada", time_obj, "body")
expense_type = parser._classify_message(msg)
assert expense_type == ExpenseType.TRANSFERENCE
# TRANSFERENCE MATCHES TESTS
def test_transference_matches_has_realizado():
"""Test that 'has realizado' in body matches transference pattern."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/transference.txt", encoding="utf-8") as f:
data = f.read()
with open("tests/banks/banco_chile/transference_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message("serviciodetransferencias@bancochile.cl", subject, time_obj, data)
assert parser._matches_transference_body(msg) is True
def test_transference_matches_ha_efectuado():
"""Test that 'ha efectuado' in body matches transference pattern."""
parser = EmailParser(BANK)
parser.build_parser()
with open("tests/banks/banco_chile/transference_app.txt", encoding="utf-8") as f:
data = f.read()
with open("tests/banks/banco_chile/transference_subject.txt", encoding="utf-8") as f:
subject = f.read()
msg = Message("serviciodetransferencias@bancochile.cl", subject, time_obj, data)
assert parser._matches_transference_body(msg) is True
def test_transference_matches_invalid_body():
"""Test that body without transference pattern is rejected."""
parser = EmailParser(BANK)
parser.build_parser()
invalid_body = "Este es un correo sin el patron de transferencia"
msg = Message("serviciodetransferencias@bancochile.cl", "Transferencia", time_obj, invalid_body)
assert parser._matches_transference_body(msg) is False
def test_transference_matches_empty_pattern():
"""Test that empty transference pattern (santander) accepts any body."""
parser = EmailParser("santander")
parser.build_parser()
any_body = "Any body content without the pattern"
msg = Message(santander_remitent, "Transferencia de fondos", time_obj, any_body)
assert parser._matches_transference_body(msg) is True
def test_get_transference_with_invalid_body_returns_none():
"""Test that get_transference returns None if body doesn't match pattern."""
parser = EmailParser(BANK)
parser.build_parser()
invalid_body = "Este es un correo sin el patron de transferencia"
msg = Message("serviciodetransferencias@bancochile.cl", "Transferencia", time_obj, invalid_body)
transference = parser.get_transference(msg)
assert transference is None
def test_bank_patterns_transference_matches_loaded():
"""Test that transference_matches_regex is loaded from JSON."""
parser = EmailParser(BANK)
parser.build_parser()
assert parser.bank_patterns.transference_matches_regex == "(?:has realizado|ha efectuado)"
def test_bank_patterns_transference_matches_empty():
"""Test that empty transference_matches_regex is handled."""
parser = EmailParser("santander")
parser.build_parser()
assert not parser.bank_patterns.transference_matches_regex
@pytest.mark.parametrize(
("bank", "expected_pattern"),
[
("banco_chile", "(?:has realizado|ha efectuado)"),
("santander", ""),
],
)
def test_transference_matches_regex_by_bank(bank, expected_pattern):
"""Parametrized test for transference_matches_regex across banks."""
parser = EmailParser(bank)
parser.build_parser()
assert parser.bank_patterns.transference_matches_regex == expected_pattern