mtg_python_deckbuilder/code/tests/test_seeded_builder_minimal.py

from __future__ import annotations

import os
from code.headless_runner import run


def test_headless_seed_threads_into_builder(monkeypatch):
    # Use the tiny test dataset for speed/determinism
    monkeypatch.setenv("CSV_FILES_DIR", os.path.join("csv_files", "testdata"))
    # Use a commander known to be in tiny dataset or fallback path; we rely on search/confirm flow
    # Provide a simple name that will fuzzy match one of the entries.
    out1 = run(command_name="Krenko", seed=999)
    out2 = run(command_name="Krenko", seed=999)
    # Determinism: the seed should be set on the builder and identical across runs
    assert getattr(out1, "seed", None) == getattr(out2, "seed", None) == 999
    # Basic sanity: commander selection should have occurred
    assert isinstance(getattr(out1, "commander_name", ""), str)
    assert isinstance(getattr(out2, "commander_name", ""), str)


def test_headless_skips_owned_prompt_when_files_present(monkeypatch, tmp_path):
    monkeypatch.setenv("CSV_FILES_DIR", os.path.join("csv_files", "testdata"))
    owned_dir = tmp_path / "owned"
    owned_dir.mkdir()
    (owned_dir / "my_cards.txt").write_text("1 Sol Ring\n", encoding="utf-8")
    monkeypatch.setenv("OWNED_CARDS_DIR", str(owned_dir))

    builder = run(
        command_name="Krenko",
        add_lands=False,
        add_creatures=False,
        add_non_creature_spells=False,
        add_ramp=False,
        add_removal=False,
        add_wipes=False,
        add_card_advantage=False,
        add_protection=False,
    )

    assert getattr(builder, "bracket_level", None) in {None, 3}
    assert getattr(builder, "use_owned_only", False) is False