OGC core for compliance

[abkfenris]

An initial demonstration of how Xpublish EDR and other OGC APIs can become more complaint with full OGC specs.

Uses https://github.com/xpublish-community/xpublish-ogc-core

[abkfenris]

This could let us use something like https://schemathesis.readthedocs.io/ to check for compliance to the OGC specs.

https://schemathesis.readthedocs.io/en/stable/guides/python-apps/#integration-with-pytest-fixtures

We should be able to use a pattern like

import pytest
import schemathesis
from your_app import create_app

@pytest.fixture
def configured_app(database_session):
    """Set up your FastAPI app with dependencies"""
    app = create_app()
    app.state.db = database_session
    return app

@pytest.fixture
def external_schema():
    """Load the external schema you need to conform to"""
    return schemathesis.openapi.from_url(
        "https://external-api.com/openapi.json"
    )

@pytest.fixture
def api_schema(configured_app, external_schema):
    """Configure schema to test your app against external spec"""
    # Use external schema but test against your app
    external_schema.app = configured_app
    return external_schema

schema = schemathesis.pytest.from_fixture("api_schema")

@schema.parametrize()
def test_operations(case):
    case.call_and_validate()