conftest.py

import sys

import pytest
from django.conf import settings


def pytest_addoption(parser):
    # https://docs.pytest.org/en/7.1.x/example/markers.html#custom-marker-and-command-line-option-to-control-test-runs
    parser.addoption("--test-spatial", action="store_true", default=False)


def should_run_spatial(config):
    return config.getoption("--test-spatial")


def pytest_runtest_setup(item):
    requires_spatial = any(mark.name == "spatial" for mark in item.iter_markers())
    if requires_spatial:
        if not should_run_spatial(item.config):
            pytest.skip("cannot run without the --test-spatial parameter")


def pytest_configure(config):
    COMMON_CONFIG = dict(
        STATIC_URL="",
        INSTALLED_APPS=[
            "location_field",
            "tests",
        ],
        TEMPLATES=[
            {
                "BACKEND": "django.template.backends.django.DjangoTemplates",
                "APP_DIRS": True,
            },
        ],
    )

    if sys.platform == "darwin":
        COMMON_CONFIG["SPATIALITE_LIBRARY_PATH"] = "/usr/local/lib/mod_spatialite.dylib"
    elif sys.version_info[0] == 2:
        COMMON_CONFIG["SPATIALITE_LIBRARY_PATH"] = "mod_spatialite"

    if should_run_spatial(config):
        settings.configure(
            **dict(
                COMMON_CONFIG,
                DATABASES={
                    "default": {
                        "ENGINE": "django.contrib.gis.db.backends.spatialite",
                        "NAME": "db.sqlite3",
                    }
                },
            )
        )
    else:
        settings.configure(
            **dict(
                COMMON_CONFIG,
                DATABASES={
                    "default": {
                        "ENGINE": "django.db.backends.sqlite3",
                        "NAME": "db.sqlite3",
                    }
                },
            )
        )