FabledScribe/tests/test_reply_shapes.py

"""The default reply shapes and the moments they ride (milestone 500 step 1).

What this pins is what delivery will depend on: every shape rides a moment that
exists, the core is small enough to pay for on every turn, no slice grows back
into the skill it replaced, the text speaks for any kind of work, and both
doors hand out the same shapes.
"""
import pytest

from scribe.services import moments, reply_shapes
from tests.helpers import FakeMCP, dev_only_hits


def test_there_is_a_core_and_at_least_one_slice():
    """The sweeps below are vacuous over an empty catalog (rule 167)."""
    assert reply_shapes.CORE_KEY in reply_shapes.SHAPES
    assert len(reply_shapes.SHAPES) >= 2


def test_every_shape_is_keyed_by_its_own_key():
    for key, shape in reply_shapes.SHAPES.items():
        assert key == shape.key


@pytest.mark.parametrize("key", list(reply_shapes.SHAPES))
def test_every_shape_rides_a_catalog_moment(key):
    """A shape on a moment nothing reaches would never arrive — and an
    operator's preference mounted beside it would sit on a dead moment too."""
    assert reply_shapes.SHAPES[key].moment in moments.MOMENTS


def test_the_core_rides_the_reply_moment():
    """It is the reply's shape; a preference about every reply is mounted
    on `reply.report`, so that is where the core says it lives."""
    assert reply_shapes.core().moment == "reply.report"


def test_no_two_slices_share_a_moment():
    """One moment, one default. Two slices on a moment would arrive together
    and leave the reader to reconcile them."""
    slices = [s.moment for s in reply_shapes.SHAPES.values() if s.key != reply_shapes.CORE_KEY]
    assert len(slices) == len(set(slices))


def test_the_core_fits_its_budget():
    """It is paid for in every session. The budget is the ceiling, so a
    sentence added to the core has to replace one."""
    assert len(reply_shapes.core().text) <= reply_shapes.CORE_BUDGET_CHARS


@pytest.mark.parametrize("key", [k for k in reply_shapes.SHAPES if k != reply_shapes.CORE_KEY])
def test_each_slice_fits_its_budget(key):
    assert len(reply_shapes.SHAPES[key].text) <= reply_shapes.SLICE_BUDGET_CHARS


def test_the_budget_guard_can_fail():
    long = "x" * (reply_shapes.CORE_BUDGET_CHARS + 1)
    assert not len(long) <= reply_shapes.CORE_BUDGET_CHARS


@pytest.mark.parametrize("key", list(reply_shapes.SHAPES))
def test_no_shape_assumes_a_particular_domain(key):
    shape = reply_shapes.SHAPES[key]
    assert not dev_only_hits(shape.title + "\n" + shape.text), key


@pytest.mark.parametrize("key", list(reply_shapes.SHAPES))
def test_every_shape_says_what_it_is_and_when_it_arrives(key):
    shape = reply_shapes.SHAPES[key]
    assert shape.title.strip() and shape.delivered.strip() and shape.text.strip()


def test_the_core_carries_the_length_discipline():
    """Milestone 409's live read: replies that had every section were still
    too long. Delivery cannot fix that; the core has to say it."""
    text = reply_shapes.core().text.lower()
    assert "shortest reply that carries the answer" in text
    assert "what can go" in text


def test_the_core_is_not_a_slice():
    """It rides every turn, whatever moment the turn reaches — so a moment
    lookup never hands it out a second time."""
    every = [s.moment for s in reply_shapes.SHAPES.values()]
    assert reply_shapes.CORE_KEY not in {s.key for s in reply_shapes.for_moments(every)}


def test_a_moment_brings_its_own_slice_and_nothing_else():
    got = reply_shapes.for_moments(["work.finish", "work.run"])
    assert [s.key for s in got] == ["completion"]
    assert reply_shapes.for_moments([]) == []


def test_the_payload_carries_every_shape_with_its_moments_meaning():
    data = reply_shapes.catalog()
    assert [s["key"] for s in data["shapes"]] == list(reply_shapes.SHAPES)
    assert data["total"] == len(reply_shapes.SHAPES)
    for row in data["shapes"]:
        assert row["means"] == moments.MOMENTS[row["moment"]].means


async def test_the_tool_returns_the_catalog():
    from scribe.mcp.tools import moments as tool

    assert await tool.list_reply_shapes() == reply_shapes.catalog()


def test_the_tool_is_registered_as_a_read():
    from scribe.mcp.server import _READ_ONLY_TOOLS
    from scribe.mcp.tools import moments as tool

    mcp = FakeMCP()
    tool.register(mcp)
    assert "list_reply_shapes" in mcp.names
    assert "list_reply_shapes" in _READ_ONLY_TOOLS


def test_both_doors_read_one_catalog():
    """Rule 33 parity: the session and the Settings view cannot show
    different defaults."""
    from scribe.mcp.tools import moments as tool
    from scribe.routes import retrieval as routes

    assert tool.shapes_svc is reply_shapes
    assert routes.shapes_svc is reply_shapes


async def test_the_route_returns_the_catalog():
    from types import SimpleNamespace

    from quart import Quart, g

    from scribe.routes import retrieval as routes

    app = Quart(__name__)
    async with app.test_request_context("/api/retrieval/reply-shapes"):
        g.user = SimpleNamespace(id=7)
        resp = await routes.reply_shapes_route.__wrapped__()
        assert await resp.get_json() == reply_shapes.catalog()