"""Unit tests for effective method contract resolution."""

from __future__ import annotations

from steering.effective_contract import resolve_effective_steering_elements


def test_product_plan_phase_includes_agile_backlog_elements():
    elements = resolve_effective_steering_elements(
        "continuous_product",
        data_slices=["backlog", "actions", "work_cycles"],
        active_composition_modifier=None,
    )
    assert "work_cycle_scope" in elements
    assert "backlog_epic_hierarchy" in elements


def test_linear_without_work_cycles_excludes_agile_backlog():
    elements = resolve_effective_steering_elements(
        "sequential_dependency",
        data_slices=["backlog", "actions", "roadmap"],
        active_composition_modifier=None,
    )
    assert "critical_path" in elements
    assert "backlog_epic_hierarchy" not in elements


def test_active_modifier_merges_agile_elements():
    elements = resolve_effective_steering_elements(
        "sequential_dependency",
        data_slices=["backlog", "actions"],
        active_composition_modifier="agile_iteration",
    )
    assert "backlog_epic_hierarchy" in elements