Tirsvad
ab92d5871c
Copied unchanged from the base: class Food(Turtle) with refresh, and one random_coordinate function that the tests replace. MIL-003 checks the values against the day-21 lectures. Task: MIL-002#3 Closes #10
78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
"""Tests of the food, 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_food, script_randint
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from snake_game import constants
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def test_food_is_a_blue_half_size_circle_with_the_pen_up_and_no_animation(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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food = make_food(monkeypatch)
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assert ("shape", ("circle",)) in food.calls
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assert ("shapesize", (0.5, 0.5)) in food.calls
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assert ("color", ("blue",)) in food.calls
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assert ("speed", ("fastest",)) in food.calls
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assert "penup" in food.call_names()
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def test_food_inherits_from_turtle_and_calls_the_base_class_first(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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install_fake_turtle(monkeypatch)
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module = importlib.import_module("snake_game.food")
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food = module.Food()
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assert issubclass(module.Food, sys.modules["turtle"].Turtle)
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assert food.calls[0][0] == "shape" # the base class set up `calls` before
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def test_food_starts_at_a_random_place(monkeypatch: pytest.MonkeyPatch) -> None:
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script_randint(monkeypatch, [12, -34])
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food = make_food(monkeypatch)
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assert food.position() == (12, -34)
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def test_refresh_moves_the_food_to_a_new_random_place(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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script_randint(monkeypatch, [1, 2, 3, 4])
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food = make_food(monkeypatch)
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food.refresh()
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assert food.position() == (3, 4)
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def test_random_coordinate_asks_for_a_number_from_wall_to_wall(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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bounds = script_randint(monkeypatch, [7])
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install_fake_turtle(monkeypatch)
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module = importlib.import_module("snake_game.food")
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result = module.random_coordinate()
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assert result == 7
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assert bounds == [(-constants.WALL_LIMIT, constants.WALL_LIMIT)]
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def test_random_places_are_always_inside_the_walls(
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monkeypatch: pytest.MonkeyPatch,
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) -> None:
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install_fake_turtle(monkeypatch)
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module = importlib.import_module("snake_game.food")
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places = [module.random_coordinate() for _ in range(500)]
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wall = constants.WALL_LIMIT
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assert all(-wall <= place <= wall for place in places)
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