"""Tests for harness/A/__init__.py -- shared config constants."""

from argparse import ArgumentParser, Namespace
from pathlib import Path

import pytest

from harness import A


def test_thinking_mode_resolves_default_budgets():
    args = Namespace(reasoning_budget=None, force_budget=None)
    A.resolve_protocol_budgets(ArgumentParser(), args)
    assert args.reasoning_budget == A.EXTENDED_MAX_NEW_TOKENS
    assert args.force_budget == A.MAX_NEW_TOKENS


def test_explicit_budget_overrides_are_preserved():
    args = Namespace(reasoning_budget=1024, force_budget=8)
    A.resolve_protocol_budgets(ArgumentParser(), args)
    assert args.reasoning_budget == 1024
    assert args.force_budget == 8


@pytest.mark.parametrize("flag", ["reasoning_budget", "force_budget"])
def test_nonpositive_budget_overrides_are_rejected(flag):
    args = Namespace(reasoning_budget=None, force_budget=None)
    setattr(args, flag, 0)
    with pytest.raises(SystemExit):
        A.resolve_protocol_budgets(ArgumentParser(), args)


def test_generation_protocol_matches_vsibench_yaml():
    # thinking-in-space/lmms_eval/tasks/vsibench/vsibench.yaml generation_kwargs.
    assert A.MAX_NEW_TOKENS == 16
    assert A.TEMPERATURE == 0.0
    assert A.DO_SAMPLE is False


def test_thinking_generation_protocol():
    assert A.EXTENDED_MAX_NEW_TOKENS == 2048
    assert A.EXTENDED_MAX_NEW_TOKENS > A.MAX_NEW_TOKENS
    assert isinstance(A.FORCE_ANSWER_PROMPT, str) and A.FORCE_ANSWER_PROMPT.strip()


def test_frame_selections_match_inference_vocabulary():
    from inference import SAM3_FRAME_SELECTIONS

    assert A.FRAME_SELECTIONS == SAM3_FRAME_SELECTIONS


def test_default_frame_selection_is_a_valid_selection():
    assert A.DEFAULT_FRAME_SELECTION in A.FRAME_SELECTIONS


def test_model_paths_cover_every_registered_model():
    assert set(A.MODEL_PATHS) == {
        "qwen3.5-4b",
        "qwen3.5-2b",
        "internvl3.5-4b",
        "internvl3.5-2b",
    }
    for path in A.MODEL_PATHS.values():
        assert path.parent == A.MODELS_ROOT


def test_results_dir_defaults_under_root_results():
    assert A.RESULTS_DIR == Path("/root/results/A")