add tests for ckan utils

tests/unit/utils/test_utils.py

@@ -0,0 +1,46 @@
+from harvester.ckan_utils import munge_tag, munge_title_to_name
+import pytest
+
+# these tests are copied from
+# https://github.com/ckan/ckan/blob/master/ckan/tests/lib/test_munge.py
+
+
+class TestCKANUtils:
+    @pytest.mark.parametrize(
+        "original,expected",
+        [
+            ("unchanged", "unchanged"),
+            ("s", "s_"),  # too short
+            ("some spaces  here", "some-spaces--here"),
+            ("random:other%characters&_.here", "randomothercharactershere"),
+            ("river-water-dashes", "river-water-dashes"),
+        ],
+    )
+    def test_munge_tag_multiple_pass(self, original, expected):
+        """Munge a list of tags muliple times gives expected results."""
+
+        first_munge = munge_tag(original)
+        assert first_munge == expected
+        second_munge = munge_tag(first_munge)
+        assert second_munge == expected
+
+    @pytest.mark.parametrize(
+        "original,expected",
+        [
+            ("unchanged", "unchanged"),
+            ("some spaces  here    &here", "some-spaces-here-here"),
+            ("s", "s_"),  # too short
+            ("random:other%character&", "random-othercharacter"),
+            ("u with umlaut \xfc", "u-with-umlaut-u"),
+            ("reallylong" * 12, "reallylong" * 9 + "reall"),
+            ("reallylong" * 12 + " - 2012", "reallylong" * 9 + "-2012"),
+            (
+                "10cm - 50cm Near InfraRed (NI) Digital Aerial Photography (AfA142)",
+                "10cm-50cm-near-infrared-ni-digital-aerial-photography-afa142",
+            ),
+        ],
+    )
+    def test_munge_title_to_name(self, original, expected):
+        """Munge a list of names gives expected results."""
+        munge = munge_title_to_name(original)
+        assert munge == expected