138 lines
3.8 KiB
Python
138 lines
3.8 KiB
Python
"""Tests of the scoreboard, with a fake `Turtle` as its base class."""
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import importlib
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import sys
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import pytest
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from fakes import install_fake_turtle, make_scoreboard
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from snake_game import constants
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START_TEXT = (
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"write",
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("Score: 0 High Score: 0", "center", ("Arial", 24, "normal")),
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)
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def test_scoreboard_is_white_hidden_and_at_the_top_centre(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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assert ("color", ("white",)) in scoreboard.calls
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assert "penup" in scoreboard.call_names()
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assert "hideturtle" in scoreboard.call_names()
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assert ("goto", constants.SCOREBOARD_POSITION) in scoreboard.calls
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def test_scoreboard_inherits_from_turtle(monkeypatch: pytest.MonkeyPatch) -> None:
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install_fake_turtle(monkeypatch)
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module = importlib.import_module("snake_game.scoreboard")
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assert issubclass(module.Scoreboard, sys.modules["turtle"].Turtle)
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def test_scoreboard_starts_by_writing_both_scores_0_centred_in_arial_24(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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assert scoreboard.calls[-1] == START_TEXT
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def test_increase_score_wipes_the_old_text_and_writes_the_new_score(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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scoreboard.increase_score()
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assert scoreboard.call_names()[-2:] == ["clear", "write"]
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assert scoreboard.calls[-1] == (
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"write",
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("Score: 1 High Score: 0", "center", ("Arial", 24, "normal")),
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)
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def test_every_food_adds_one_to_the_score(monkeypatch: pytest.MonkeyPatch) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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for _ in range(3):
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scoreboard.increase_score()
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assert scoreboard.calls[-1][1][0] == "Score: 3 High Score: 0"
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def test_high_score_starts_at_0(monkeypatch: pytest.MonkeyPatch) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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assert scoreboard.high_score == 0
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assert scoreboard.score == 0
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def test_reset_keeps_a_higher_score_as_the_high_score_and_starts_again(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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for _ in range(3):
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scoreboard.increase_score()
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scoreboard.reset()
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assert scoreboard.high_score == 3
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assert scoreboard.score == 0
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assert scoreboard.call_names()[-2:] == ["clear", "write"]
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assert scoreboard.calls[-1] == (
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"write",
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("Score: 0 High Score: 3", "center", ("Arial", 24, "normal")),
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)
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def test_reset_keeps_the_high_score_when_the_score_is_lower(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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for _ in range(3):
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scoreboard.increase_score()
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scoreboard.reset()
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scoreboard.increase_score()
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scoreboard.reset()
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assert scoreboard.high_score == 3
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assert scoreboard.calls[-1][1][0] == "Score: 0 High Score: 3"
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def test_reset_keeps_the_high_score_when_the_score_is_equal(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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scoreboard.increase_score()
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scoreboard.reset()
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scoreboard.increase_score()
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scoreboard.reset()
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assert scoreboard.high_score == 1
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assert scoreboard.score == 0
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def test_the_score_text_shows_both_scores_while_playing(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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scoreboard.increase_score()
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scoreboard.increase_score()
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scoreboard.reset()
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scoreboard.increase_score()
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assert scoreboard.calls[-1][1][0] == "Score: 1 High Score: 2"
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def test_scoreboard_has_no_game_over_any_more(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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scoreboard = make_scoreboard(monkeypatch)
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assert not hasattr(scoreboard, "game_over")
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