test: add tests to confirm plugin CKAN 2.9/2.10 differences work ok

In CKAN 2.9 the package controller hook functions are called (for example) after_create but in CKAN 2.10 they've changed to (for example) after_dataset_create. These tests confirm a few things to do with these functions, but mainly they've been added to confirm that on 2.9 and 2.10 the hooks work correctly.

tests/test_plugin.py

@@ -0,0 +1,85 @@
+from unittest.mock import patch, MagicMock
+
+import pytest
+from datacite.errors import DataCiteNotFoundError
+
+from ckan.tests import factories
+from ckan.tests.helpers import call_action
+from ckanext.doi.model.crud import DOIQuery
+
+
+@pytest.mark.filterwarnings("ignore::sqlalchemy.exc.SADeprecationWarning")
+@pytest.mark.ckan_config("ckan.plugins", "doi")
+@pytest.mark.ckan_config("ckanext.doi.prefix", "testing")
+@pytest.mark.usefixtures("with_doi_table", "with_plugins")
+class TestDOIPlugin:
+    def test_after_dataset_create(self):
+        # as well as testing the after_dataset_create functionality works on some level,
+        # this test is also here to confirm that after_dataset_create is called
+        # correctly whether you are on CKAN 2.9 or CKAN 2.10.
+
+        with patch("ckanext.doi.lib.api.DataCiteMDSClient") as mock_client_class:
+            # mock the datacite API to make it look like the DOI generated is new
+            mock_client = MagicMock(
+                metadata_get=MagicMock(side_effect=DataCiteNotFoundError())
+            )
+            mock_client_class.return_value = mock_client
+
+            # create a new dataset
+            dataset = factories.Dataset()
+
+        # check that a DOI is created in the database for this new dataset
+        assert DOIQuery.read_package(dataset["id"], create_if_none=False)
+
+    @pytest.mark.ckan_config("ckanext.doi.publisher", "argh!")
+    def test_after_dataset_update(self):
+        # as well as testing the after_dataset_update functionality works on some level,
+        # this test is also here to confirm that after_dataset_update is called
+        # correctly whether you are on CKAN 2.9 or CKAN 2.10.
+
+        # the udpate function has flashes in it which we don't care about
+        with patch("ckan.plugins.toolkit.h.flash_success"):
+            with patch("ckanext.doi.lib.api.DataCiteMDSClient") as mock_client_class:
+                # mock the datacite API to make it look like the DOI generated is new
+                mock_client = MagicMock(
+                    metadata_get=MagicMock(side_effect=DataCiteNotFoundError())
+                )
+                mock_client_class.return_value = mock_client
+
+                # create a new dataset
+                dataset = factories.Dataset(title="test", author="Author, Test")
+
+                # reset our mock
+                mock_client.reset()
+
+                # update the dataset's title, this should trigger after_dataset_update
+                call_action("package_patch", id=dataset["id"], title="different")
+
+                # check that attempts have been made to mint the DOI
+                assert mock_client.metadata_post.called
+                assert mock_client.doi_post.called
+
+    @pytest.mark.ckan_config("ckanext.doi.publisher", "argh!")
+    @pytest.mark.ckan_config("ckanext.doi.site_url", "http://dois.are.great.org")
+    def test_after_dataset_show(self):
+        # as well as testing the after_dataset_show functionality works on some level,
+        # this test is also here to confirm that after_dataset_show is called correctly
+        # whether you are on CKAN 2.9 or CKAN 2.10.
+
+        with patch("ckanext.doi.lib.api.DataCiteMDSClient") as mock_client_class:
+            # mock the datacite API to make it look like the DOI generated is new
+            mock_client = MagicMock(
+                metadata_get=MagicMock(side_effect=DataCiteNotFoundError())
+            )
+            mock_client_class.return_value = mock_client
+
+            # create a new dataset
+            dataset = factories.Dataset()
+
+        doi = DOIQuery.read_package(dataset["id"], create_if_none=False)
+        package = call_action("package_show", id=dataset["id"])
+        assert package["doi"] == doi.identifier
+        assert package["doi_status"] is False
+        assert package["domain"] == "dois.are.great.org"
+        assert package["doi_date_published"] is None
+        assert package["doi_publisher"] == "argh!"