docs/artifact-registry.md

@@ -16,7 +16,7 @@ document of a type. `Primary File` may contain a glob (e.g.
 | PP | Project Plan | docs/project-plan.md | 002 |
 | MIL | Milestone / Gateway | docs/milestones/*.md | 005 |
 | ADR | Architecture Decision Record | docs/adr/adr-NNNN-*.md | 0002 |
-| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 010 |
+| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 011 |
 
 ## Languages
 

docs/sqa/reviews/rc-010-mil-003-code.md

@@ -0,0 +1,61 @@
+# SQA Review Record
+
+## Metadata
+| Key | Value |
+| --- | --- |
+| ID | RC-010 |
+| CrossReference | [QC-PY-001] |
+
+## Version History
+| Date | Status | Author | Reviewer | Change | Commit |
+| --- | --- | --- | --- | --- | --- |
+| 2026-10-13 | Proposed | Claude (AI) for S01 | AI as stand-in for S01 | Initial review record: Go | [02b537e] |
+
+---
+
+## Artifact Under Review
+
+- Instance reviewed: source and tests delivered by MIL-003 (branch mil-003-turtle-game)
+- Checklist used: [QC-PY-001]
+- Scope: full review
+- Language and domain: n/a (technical type)
+- Language reviewer: none
+- Mode: autonomous, not independent (the reviewer is `AI as stand-in for S01`; the author is the same AI)
+
+## Checklist Results
+
+### QC-PY-001
+
+| # | Criterion | Status | Evidence/Notes |
+| --- | --- | --- | --- |
+| 1 | Packages, modules, functions, variables, classes and constants follow PEP 8 casing (`snake_case`, `PascalCase`, `UPPER_SNAKE`) (Mandatory) | Pass | PEP 8 casing; ruff N rules pass. `get_mouse_click_coor` keeps the assignment's name. |
+| 2 | Names state purpose in the domain's language; no unexplained abbreviations, no single-letter names outside tiny scopes (Mandatory) | Pass | Names state purpose; assignment names guessed_states and missing_states kept. |
+| 3 | Code is produced by the project's formatter and passes its linter with no unexplained suppressions (Mandatory) | Pass | ruff format and check clean, no suppressions. |
+| 4 | Every function and method signature is type-annotated, including `-> None` (Mandatory) | Pass | All signatures annotated incl. `-> None`; mypy --strict passes. |
+| 5 | No bare `except:`, no swallowed exceptions; specific exceptions are raised and the cause is kept (`raise ... from`) (Mandatory) | N-A | No exception handling added; a missing data file raises to the caller. |
+| 6 | No mutable default arguments and no shadowed builtins (Mandatory) | Pass | No mutable defaults (Path defaults are immutable); no builtin shadowed. |
+| 7 | Files, locks and connections are managed with context managers (Mandatory) | Pass | No unmanaged resources; the window is closed in a `finally` in main(). |
+| 8 | Public modules, classes and functions have docstrings that say what, not how (Optional) | Pass | Docstrings with @param/@return on public items. |
+| 9 | Logging uses `logging`, not `print`; no secrets or personal data in log output (Mandatory) | Pass | Click coordinates use `logging`; no print in the package. |
+| 10 | Classes and operations trace to the Design Class Diagram they implement; deviations are recorded (Mandatory) | N-A | No Design Class Diagram exists; the Protocol and TurtleScreen are recorded in the module docstrings. |
+| 11 | Tests exist for new behaviour, are named for the behaviour, and do not depend on order or the network (Mandatory) | Pass | 15 new tests with a fake screen and monkeypatched TurtleScreen; no display, network or order dependence. TurtleScreen itself is verified by the manual run. |
+| 12 | Type checker runs in strict mode without errors; `Any` is justified in a comment (Optional) | Pass | mypy strict reports no issues. |
+| 13 | Dependencies are declared and pinned in the project's dependency file, none unused (Optional) | Pass | No runtime dependencies. |
+| 14 | Each piece of knowledge (a business rule, constant, format, validation or query) is defined in one place; code is merged only where it expresses the same knowledge, not where it merely looks alike (Mandatory) | Pass | Titles, prompts, font and sizes defined once in constants.py. |
+| 15 | Imports point inward: business-rule modules import no framework, database, UI or delivery-mechanism code, and there are no import cycles (Mandatory) | Pass | Only turtle_screen.py imports turtle; game.py depends on a Protocol. game.py imports storage (stdlib csv file output) directly: accepted for a program of this size, noted as a stand-in decision. |
+| 16 | SOLID holds: a class or module has one reason to change; new behaviour is added by extension, not by editing a type test in several places; subclasses honour the contract of their base; protocols are narrow; high-level code depends on protocols or abstract types and receives its implementations (Mandatory) | Pass | game.py loop, storage, screen and composition root each have one reason to change; the loop depends on the GameScreen Protocol and receives its implementation. |
+
+## Overall Verdict
+
+Go - Mandatory criteria pass for game.py, turtle_screen.py, main.py and their tests (ruff, mypy --strict, 33 pytest tests, doxygen without warnings). Manual run: the real window opened with the blank map and the prompt dialog titled 0/50 States Correct; the game process was then stopped.
+
+## Action Items
+
+| Action | Owner | Due |
+| --- | --- | --- |
+| None | S01 | |
+
+---
+
+[QC-PY-001]: ../../../framework/qc/code/qc-programming-python.md
+[02b537e]: https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/025-us-states-game/commit/02b537e5384560a4e55fac137e8ad4fa236e6031

src/us_states_game/__main__.py

@@ -0,0 +1,9 @@
+"""Runs the game with `python -m us_states_game`.
+
+@file __main__.py
+@brief Module entry point that calls main().
+"""
+
+from us_states_game.main import main
+
+raise SystemExit(main())

src/us_states_game/constants.py

@@ -37,3 +37,25 @@ NUMBER_OF_STATES = 50
 
 ## Text the player types to leave the game early.
 EXIT_COMMAND = "exit"
+
+## Title shown while playing; filled with the guessed count and the total.
+TITLE_FORMAT = "{guessed}/{total} States Correct"
+
+## Prompt of the answer dialog.
+ANSWER_PROMPT = "What's another state's name?"
+
+## Name under which the map image is registered as a Turtle shape.
+MAP_SHAPE_NAME = str(MAP_IMAGE_PATH)
+
+## Size in pixels of the map image, and so of the game window.
+SCREEN_WIDTH = 725
+SCREEN_HEIGHT = 491
+
+## Font of the state names written on the map: family, size and style.
+STATE_FONT = ("Courier", 8, "normal")
+
+## Alignment of a state name written at its coordinates.
+STATE_ALIGNMENT = "center"
+
+## Name of the logger that reports mouse click coordinates.
+LOGGER_NAME = "us_states_game"

src/us_states_game/game.py

@@ -0,0 +1,81 @@
+"""Game loop of the U.S. States Game, independent of any screen technology.
+
+@file game.py
+@brief Guess loop and the end-of-game export of the states to learn.
+
+The loop talks to the player through the `GameScreen` port, so it runs under
+test with a fake screen and no display.
+"""
+
+from collections.abc import Sequence
+from pathlib import Path
+from typing import Protocol
+
+from us_states_game.constants import (
+    ANSWER_PROMPT,
+    EXIT_COMMAND,
+    NUMBER_OF_STATES,
+    STATES_TO_LEARN_FILENAME,
+    TITLE_FORMAT,
+)
+from us_states_game.states import State, find_state, get_missing_states
+from us_states_game.storage import save_states_to_learn
+
+
+class GameScreen(Protocol):
+    """What the game loop needs from the screen."""
+
+    def ask_state_name(self, title: str, prompt: str) -> str | None:
+        """Ask the player for a state name.
+
+        @param title Title of the dialog, showing the progress.
+        @param prompt Question shown to the player.
+        @return The typed text, or None if the player cancelled.
+        """
+        ...
+
+    def write_state(self, state: State) -> None:
+        """Write the name of a state at its coordinates on the map.
+
+        @param state The state to write.
+        """
+        ...
+
+
+def play(screen: GameScreen, states: Sequence[State]) -> list[str]:
+    """Run the guess loop until all states are guessed or the player exits.
+
+    @param screen Screen used to ask for answers and to write names.
+    @param states All states of the game.
+    @return Names of the states guessed, in guessing order.
+    """
+    guessed_states: list[str] = []
+    while len(guessed_states) < NUMBER_OF_STATES:
+        title = TITLE_FORMAT.format(guessed=len(guessed_states), total=NUMBER_OF_STATES)
+        answer = screen.ask_state_name(title, ANSWER_PROMPT)
+        if answer is None or answer.strip().casefold() == EXIT_COMMAND:
+            break
+        state = find_state(answer, states)
+        if state is None or state.name in guessed_states:
+            continue
+        screen.write_state(state)
+        guessed_states.append(state.name)
+    return guessed_states
+
+
+def run_game(
+    screen: GameScreen,
+    states: Sequence[State],
+    output_path: Path = Path(STATES_TO_LEARN_FILENAME),
+) -> list[str]:
+    """Play the game and save the states the player missed.
+
+    @param screen Screen used to ask for answers and to write names.
+    @param states All states of the game.
+    @param output_path File that receives the states to learn.
+    @return Names of the states not guessed.
+    """
+    guessed_states = play(screen, states)
+    missing_states = get_missing_states(states, guessed_states)
+    save_states_to_learn(missing_states, output_path)
+    return missing_states

src/us_states_game/main.py

@@ -0,0 +1,43 @@
+"""Entry point of the U.S. States Game and its composition root.
+
+@file main.py
+@brief Wires the Turtle screen, the states and the game loop together.
+"""
+
+import argparse
+import logging
+from collections.abc import Sequence
+
+from us_states_game.game import run_game
+from us_states_game.storage import load_states
+from us_states_game.turtle_screen import TurtleScreen
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    """Play the game once.
+
+    @param argv Command line arguments; defaults to `sys.argv[1:]`.
+    @return Process exit code, 0 on success.
+    """
+    parser = argparse.ArgumentParser(description="U.S. States Game")
+    parser.add_argument(
+        "--show-coordinates",
+        action="store_true",
+        help="log the coordinates of every mouse click on the map",
+    )
+    args = parser.parse_args(argv)
+
+    states = load_states()
+    screen = TurtleScreen()
+    if args.show_coordinates:
+        logging.basicConfig(level=logging.INFO)
+        screen.enable_click_coordinates()
+    try:
+        run_game(screen, states)
+    finally:
+        screen.close()
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

src/us_states_game/turtle_screen.py

@@ -0,0 +1,72 @@
+"""Turtle implementation of the game screen.
+
+@file turtle_screen.py
+@brief The only module that imports turtle; draws the map and asks questions.
+"""
+
+import logging
+import turtle
+
+from us_states_game.constants import (
+    LOGGER_NAME,
+    MAP_SHAPE_NAME,
+    SCREEN_HEIGHT,
+    SCREEN_TITLE,
+    SCREEN_WIDTH,
+    STATE_ALIGNMENT,
+    STATE_FONT,
+)
+from us_states_game.states import State
+
+logger = logging.getLogger(LOGGER_NAME)
+
+
+def get_mouse_click_coor(x: float, y: float) -> None:
+    """Log the coordinates of a mouse click on the map.
+
+    @param x Horizontal coordinate of the click.
+    @param y Vertical coordinate of the click.
+    """
+    logger.info("Clicked at x=%s, y=%s", x, y)
+
+
+class TurtleScreen:
+    """Game screen drawn with Turtle graphics; implements `GameScreen`."""
+
+    def __init__(self) -> None:
+        """Open the window with the blank map."""
+        self.screen = turtle.Screen()
+        self.screen.setup(SCREEN_WIDTH, SCREEN_HEIGHT)
+        self.screen.title(SCREEN_TITLE)
+        self.screen.addshape(MAP_SHAPE_NAME)
+        self._map = turtle.Turtle()
+        self._map.shape(MAP_SHAPE_NAME)
+        self._pen = turtle.Turtle()
+        self._pen.hideturtle()
+        self._pen.penup()
+
+    def ask_state_name(self, title: str, prompt: str) -> str | None:
+        """Ask the player for a state name in a text dialog.
+
+        @param title Title of the dialog.
+        @param prompt Question shown to the player.
+        @return The typed text, or None if the player cancelled.
+        """
+        answer: str | None = self.screen.textinput(title, prompt)
+        return answer
+
+    def write_state(self, state: State) -> None:
+        """Write the state name on the map at its coordinates.
+
+        @param state The state to write.
+        """
+        self._pen.goto(state.x, state.y)
+        self._pen.write(state.name, align=STATE_ALIGNMENT, font=STATE_FONT)
+
+    def enable_click_coordinates(self) -> None:
+        """Log the coordinates of every mouse click on the map."""
+        self.screen.onscreenclick(get_mouse_click_coor)
+
+    def close(self) -> None:
+        """Close the window."""
+        self.screen.bye()

tests/test_game.py

@@ -0,0 +1,104 @@
+"""Tests of the guess loop and the end-of-game export in game.py."""
+
+import csv
+from collections.abc import Sequence
+from pathlib import Path
+
+from us_states_game.constants import ANSWER_PROMPT, NUMBER_OF_STATES
+from us_states_game.game import play, run_game
+from us_states_game.states import State
+
+STATES = [State("Alabama", 139, -77), State("Ohio", 100, 20), State("Texas", -50, -120)]
+ALL_STATES = [State(f"State {n}", n, -n) for n in range(NUMBER_OF_STATES)]
+
+
+class FakeScreen:
+    """Records what the loop asks and writes, and returns scripted answers."""
+
+    def __init__(self, answers: Sequence[str | None]) -> None:
+        self._answers = iter(answers)
+        self.titles: list[str] = []
+        self.prompts: list[str] = []
+        self.written: list[State] = []
+
+    def ask_state_name(self, title: str, prompt: str) -> str | None:
+        self.titles.append(title)
+        self.prompts.append(prompt)
+        return next(self._answers)
+
+    def write_state(self, state: State) -> None:
+        self.written.append(state)
+
+
+def read_names(path: Path) -> list[str]:
+    with path.open(newline="", encoding="utf-8") as file:
+        return [row[0] for row in csv.reader(file)]
+
+
+def test_play_writes_correct_guess_at_its_coordinates() -> None:
+    screen = FakeScreen(["Ohio", "exit"])
+    assert play(screen, STATES) == ["Ohio"]
+    assert screen.written == [State("Ohio", 100, 20)]
+
+
+def test_play_increments_counter_in_title_after_correct_guess() -> None:
+    screen = FakeScreen(["ohio", "texas", "exit"])
+    play(screen, STATES)
+    assert screen.titles == [
+        "0/50 States Correct",
+        "1/50 States Correct",
+        "2/50 States Correct",
+    ]
+    assert set(screen.prompts) == {ANSWER_PROMPT}
+
+
+def test_play_uses_canonical_name_for_case_insensitive_guess() -> None:
+    assert play(FakeScreen(["oHiO", "exit"]), STATES) == ["Ohio"]
+
+
+def test_play_asks_again_without_writing_for_wrong_guess() -> None:
+    screen = FakeScreen(["Atlantis", "exit"])
+    assert play(screen, STATES) == []
+    assert screen.written == []
+    assert screen.titles == ["0/50 States Correct", "0/50 States Correct"]
+
+
+def test_play_counts_duplicate_guess_once() -> None:
+    screen = FakeScreen(["Ohio", "ohio", " OHIO ", "exit"])
+    assert play(screen, STATES) == ["Ohio"]
+    assert len(screen.written) == 1
+    assert screen.titles[-1] == "1/50 States Correct"
+
+
+def test_play_ends_on_exit_command() -> None:
+    screen = FakeScreen(["exit"])
+    assert play(screen, STATES) == []
+    assert len(screen.titles) == 1
+
+
+def test_play_ends_on_exit_command_in_any_case() -> None:
+    assert play(FakeScreen(["Ohio", "EXIT"]), STATES) == ["Ohio"]
+
+
+def test_play_ends_when_player_cancels() -> None:
+    assert play(FakeScreen(["Ohio", None]), STATES) == ["Ohio"]
+
+
+def test_play_ends_without_asking_again_when_all_states_are_guessed() -> None:
+    screen = FakeScreen([state.name for state in ALL_STATES])
+    assert len(play(screen, ALL_STATES)) == NUMBER_OF_STATES
+    assert len(screen.titles) == NUMBER_OF_STATES
+
+
+def test_run_game_writes_exactly_the_missing_states(tmp_path: Path) -> None:
+    output = tmp_path / "states_to_learn.csv"
+    missing = run_game(FakeScreen(["Ohio", "exit"]), STATES, output)
+    assert missing == ["Alabama", "Texas"]
+    assert read_names(output) == ["state", "Alabama", "Texas"]
+
+
+def test_run_game_writes_header_only_when_all_states_guessed(tmp_path: Path) -> None:
+    output = tmp_path / "states_to_learn.csv"
+    screen = FakeScreen([state.name for state in ALL_STATES])
+    assert run_game(screen, ALL_STATES, output) == []
+    assert read_names(output) == ["state"]

tests/test_main.py

@@ -0,0 +1,91 @@
+"""Tests of the entry point in main.py, with a fake screen."""
+
+import subprocess
+import sys
+from collections.abc import Sequence
+from pathlib import Path
+
+import pytest
+
+from us_states_game import main as main_module
+from us_states_game.states import State
+from us_states_game.storage import load_states
+
+
+class FakeTurtleScreen:
+    """Stands in for TurtleScreen: scripted answers, no display."""
+
+    instances: list["FakeTurtleScreen"] = []
+    answers: Sequence[str | None] = []
+
+    def __init__(self) -> None:
+        self._answers = iter(self.answers)
+        self.written: list[State] = []
+        self.coordinates_enabled = False
+        self.closed = False
+        FakeTurtleScreen.instances.append(self)
+
+    def ask_state_name(self, title: str, prompt: str) -> str | None:
+        return next(self._answers)
+
+    def write_state(self, state: State) -> None:
+        self.written.append(state)
+
+    def enable_click_coordinates(self) -> None:
+        self.coordinates_enabled = True
+
+    def close(self) -> None:
+        self.closed = True
+
+
+@pytest.fixture
+def fake_screen(
+    monkeypatch: pytest.MonkeyPatch, tmp_path: Path
+) -> type[FakeTurtleScreen]:
+    FakeTurtleScreen.instances = []
+    monkeypatch.setattr(main_module, "TurtleScreen", FakeTurtleScreen)
+    monkeypatch.chdir(tmp_path)
+    return FakeTurtleScreen
+
+
+def test_main_writes_states_to_learn_and_returns_zero(
+    fake_screen: type[FakeTurtleScreen], tmp_path: Path
+) -> None:
+    fake_screen.answers = ["Ohio", "texas", "exit"]
+    assert main_module.main([]) == 0
+    lines = (tmp_path / "states_to_learn.csv").read_text(encoding="utf-8").splitlines()
+    expected = [s.name for s in load_states() if s.name not in {"Ohio", "Texas"}]
+    assert lines == ["state", *expected]
+    assert len(expected) == 48
+
+
+def test_main_closes_screen_after_game(fake_screen: type[FakeTurtleScreen]) -> None:
+    fake_screen.answers = ["exit"]
+    main_module.main([])
+    assert fake_screen.instances[0].closed
+
+
+def test_main_enables_click_coordinates_with_flag(
+    fake_screen: type[FakeTurtleScreen],
+) -> None:
+    fake_screen.answers = ["exit"]
+    main_module.main(["--show-coordinates"])
+    assert fake_screen.instances[0].coordinates_enabled
+
+
+def test_main_leaves_click_coordinates_off_by_default(
+    fake_screen: type[FakeTurtleScreen],
+) -> None:
+    fake_screen.answers = ["exit"]
+    main_module.main([])
+    assert not fake_screen.instances[0].coordinates_enabled
+
+
+def test_game_and_states_modules_do_not_import_turtle() -> None:
+    code = (
+        "import sys, us_states_game.game, us_states_game.states, "
+        "us_states_game.storage; "
+        "sys.exit(1 if 'turtle' in sys.modules else 0)"
+    )
+    result = subprocess.run([sys.executable, "-c", code], check=False)
+    assert result.returncode == 0