"""Integration tests for the combined projection endpoint.

GET /carveout/projection/{upc}/dms/{dms_id} returns the evaluated set of
territories a release can be delivered to for a given store, along with an
``empty_reason`` when the set is empty. Previously untested.
"""
import pytest

from Integration.consts import api
from Integration.utils import assert_ok


@pytest.mark.read
def test_projection_shape(http):
    """Projection returns the documented {empty_reason, territories} shape."""
    response = assert_ok(
        http.get(api.PROJECTION.format(upc=api.UPC, dms_id=api.DMS_ID)))
    body = response.json()
    assert "empty_reason" in body
    assert "territories" in body
    assert isinstance(body["territories"], list)
    # Exactly one of the two states must hold: either we have territories, or
    # an explanatory reason for why the projection is empty.
    assert bool(body["territories"]) ^ (body["empty_reason"] is not None)


@pytest.mark.read
def test_projection_unknown_upc_is_empty_with_reason(http):
    """An unknown (but numeric) upc routes (200) and yields an empty projection
    with a populated empty_reason rather than 404."""
    response = assert_ok(
        http.get(api.PROJECTION.format(upc="000000000000", dms_id=api.DMS_ID)))
    body = response.json()
    assert body["territories"] == []
    assert body["empty_reason"] is not None


@pytest.mark.negative
def test_projection_non_numeric_upc_not_found(http):
    """upc is asserted as \\d+, so a non-numeric upc should 404."""
    response = http.get(api.PROJECTION.format(upc="abc", dms_id=api.DMS_ID))
    assert response.status_code == 404, response.url


@pytest.mark.negative
def test_projection_non_numeric_dms_not_found(http):
    """dms_id is asserted as \\d+, so a non-numeric dms_id should 404."""
    response = http.get(api.PROJECTION.format(upc=api.UPC, dms_id="abc"))
    assert response.status_code == 404, response.url