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133 lines
3.5 KiB
Python
133 lines
3.5 KiB
Python
import pytest
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import types
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from talemate.history import shift_scene_timeline
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# ---------------------------------------------------------------------------
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# Fixtures
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# ---------------------------------------------------------------------------
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@pytest.fixture()
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def dummy_scene():
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"""Return a minimal Scene-like object whose attributes can be adjusted by
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individual tests. The fixture yields a *factory* so each test can create
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its own independent instance without repeating boilerplate."""
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def _factory(ts: str = "PT0S", archived=None, layered=None):
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scene = types.SimpleNamespace()
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scene.ts = ts
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scene.archived_history = archived or []
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scene.layered_history = layered or []
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return scene
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return _factory
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# ---------------------------------------------------------------------------
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# Tests
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# ---------------------------------------------------------------------------
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@pytest.mark.parametrize(
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"initial_ts, archived_tss, layered_tss, shift_iso, expected_scene_ts, expected_archived_ts, expected_layered_ts",
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[
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# Hours / minutes
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(
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"PT2H", # initial
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["PT1H", "PT90M"],
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["PT30M"],
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"PT1H", # +1 hour
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"PT3H",
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["PT2H", "PT2H30M"],
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["PT1H30M"],
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),
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(
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"PT2H",
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["PT1H", "PT90M"],
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["PT30M"],
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"-PT30M", # -30 minutes
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"PT1H30M",
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["PT30M", "PT1H"],
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["P0D"], # zero becomes P0D
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),
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# Months
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(
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"P2M",
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["P1M", "P6M"],
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["P3M"],
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"P1M", # +1 month
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"P3M",
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["P2M", "P7M"],
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["P4M"],
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),
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# Years
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(
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"P3Y",
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["P1Y", "P2Y"],
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["P6M"],
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"-P1Y", # -1 year
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"P2Y",
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["P0D", "P1Y"],
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["P0D"], # clamped to zero
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),
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# Huge shift – 1000 years
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(
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"P0D",
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["P1Y"],
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["P2Y"],
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"P1000Y",
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"P1000Y",
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["P1001Y"],
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["P1002Y"],
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),
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],
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ids=["hour_plus", "hour_minus", "month_plus", "year_minus", "millennia_plus"],
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)
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def test_shift_scene_timeline_basic(
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dummy_scene,
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initial_ts,
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archived_tss,
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layered_tss,
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shift_iso,
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expected_scene_ts,
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expected_archived_ts,
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expected_layered_ts,
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):
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"""Parametrised test verifying various time-unit shifts."""
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archived = [{"ts": ts} for ts in archived_tss]
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layered = [[{"ts": ts} for ts in layered_tss]]
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scene = dummy_scene(initial_ts, archived, layered)
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shift_scene_timeline(scene, shift_iso)
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assert scene.ts == expected_scene_ts
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assert [e["ts"] for e in scene.archived_history] == expected_archived_ts
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assert [e["ts"] for e in scene.layered_history[0]] == expected_layered_ts
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def test_shift_scene_timeline_noop(dummy_scene):
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"""A shift of PT0S (and variants) should not mutate the scene."""
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scene = dummy_scene(
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"PT0S",
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archived=[{"ts": "PT1H", "ts_start": "PT30M", "ts_end": "PT90M"}],
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layered=[[{"ts": "PT15M"}]],
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)
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import copy
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pre_state = (
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scene.ts,
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copy.deepcopy(scene.archived_history),
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copy.deepcopy(scene.layered_history),
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)
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shift_scene_timeline(scene, "PT0S")
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assert scene.ts == pre_state[0]
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assert scene.archived_history == pre_state[1]
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assert scene.layered_history == pre_state[2]
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