Decouple tests from ckanext-harvest

This way the non-harvest related tests can be run without having to
install ckanext-harvest

ckanext/dcat/tests/test_harvester.py

@@ -1,12 +1,14 @@
 # -*- coding: utf-8 -*-
+import pytest
+
+pytest.importorskip("ckanext.harvest", reason="Harvest extension not installed")
 
 from builtins import str
 from builtins import range
 from builtins import object
 from collections import defaultdict
 import re
 
-import pytest
 import responses
 try:
     from unittest.mock import patch
@@ -17,13 +19,14 @@
 from ckantoolkit import config
 from ckantoolkit.tests import helpers
 
-import ckanext.harvest.model as harvest_model
-from ckanext.harvest import queue
+
 
 from ckanext.dcat.harvesters import DCATRDFHarvester
 from ckanext.dcat.interfaces import IDCATRDFHarvester
 import ckanext.dcat.harvesters.rdf
 
+import ckanext.harvest.model as harvest_model
+from ckanext.harvest import queue
 
 
 

ckanext/dcat/tests/test_json_harvester.py

@@ -1,8 +1,11 @@
 from __future__ import absolute_import
+import pytest
+
+pytest.importorskip("ckanext.harvest", reason="Harvest extension not installed")
+
 from builtins import object
 
 import responses
-import pytest
 try:
     from unittest.mock import patch
 except ImportError:

test.ini

@@ -10,7 +10,7 @@ port = 5000
 
 [app:main]
 use = config:../ckan/test-core.ini
-ckan.plugins = dcat harvest
+ckan.plugins = dcat
 ckanext.dcat.enable_content_negotiation=True
 
 # Needed for the harvest tests