Tirsvad
8a0e03a6ff
Add 19 pytest tests covering the report, resource check, coin processing, refunds, change, profit, make_coffee and the main loop. Add a tests package and put the project root on the pytest path. Doxygen output is clean. The repository description and topics were set on the git host. Closes #13 Closes #14 Closes #15 Closes #16 Closes #17 Task: MIL-003#1 Task: MIL-003#2 Task: MIL-003#3 Task: MIL-003#4 Task: MIL-003#5
57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
"""!
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@file test_transactions.py
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@brief Tests for coin processing and payment.
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"""
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import pytest
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from coffee_machine.main import is_transaction_successful, process_coins
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from tests.conftest import ScriptInput
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def test_process_coins_totals_in_cents(script_input: ScriptInput) -> None:
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"""!
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@brief Quarters, dimes, nickels and pennies add up to the right total.
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"""
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script_input(["4", "3", "2", "1"])
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assert process_coins() == 4 * 25 + 3 * 10 + 2 * 5 + 1
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def test_process_coins_asks_again_on_invalid_count(
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script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
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) -> None:
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"""!
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@brief Text and negative counts are rejected and asked again.
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"""
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script_input(["abc", "-1", "2", "0", "0", "0"])
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assert process_coins() == 50
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assert capsys.readouterr().out.count("Please enter a whole number") == 2
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def test_transaction_refused_when_too_little(
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capsys: pytest.CaptureFixture[str],
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) -> None:
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"""!
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@brief Too little money is refunded with the refund message.
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"""
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assert not is_transaction_successful(100, 150)
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assert "Sorry that's not enough money. Money refunded." in capsys.readouterr().out
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def test_transaction_accepted_with_exact_payment(
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capsys: pytest.CaptureFixture[str],
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) -> None:
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"""!
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@brief Exact payment succeeds and gives no change.
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"""
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assert is_transaction_successful(150, 150)
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assert "change" not in capsys.readouterr().out
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def test_transaction_gives_change(capsys: pytest.CaptureFixture[str]) -> None:
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"""!
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@brief Overpaying succeeds and returns the difference.
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"""
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assert is_transaction_successful(175, 150)
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assert capsys.readouterr().out == "Here is $0.25 in change.\n"
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