test: refactor fixtures to load them automatically (#20)

Need to set the current working directory of pytest the directory
where the gn_monitoring_module repo is (so with the frontend etc.)

backend/gn_module_monitoring/tests/conftest.py

@@ -1,2 +1,8 @@
 from geonature.tests.fixtures import *
 from geonature.tests.fixtures import _session, app, users
+
+pytest_plugins = [
+    "gn_module_monitoring.tests.fixtures.module",
+    "gn_module_monitoring.tests.fixtures.site",
+    "gn_module_monitoring.tests.fixtures.sites_groups",
+]

backend/gn_module_monitoring/tests/test_monitoring/test_models/test_module.py

@@ -2,8 +2,6 @@
 from geonature.utils.env import db
 
 from gn_module_monitoring.monitoring.models import TMonitoringModules
-from gn_module_monitoring.tests.fixtures.module import monitoring_module
-from gn_module_monitoring.tests.fixtures.site import categories, site_type
 
 
 @pytest.mark.usefixtures("temporary_transaction")

backend/gn_module_monitoring/tests/test_monitoring/test_routes/test_site.py

@@ -1,8 +1,6 @@
 import pytest
 from flask import url_for
 
-from gn_module_monitoring.tests.fixtures.site import categories, site_type, sites
-
 
 @pytest.mark.usefixtures("client_class", "temporary_transaction")
 class TestSite:

backend/gn_module_monitoring/tests/test_monitoring/test_routes/test_sites_groups.py

@@ -1,8 +1,6 @@
 import pytest
 from flask import url_for
 
-from gn_module_monitoring.tests.fixtures.sites_groups import sites_groups
-
 
 @pytest.mark.usefixtures("client_class", "temporary_transaction")
 class TestSitesGroups: