feat: initial release

just the basics in place for an ad-hoc CSV -> Wutta import.  framework
API only at this point, no CLI yet

tests/test_util.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8; -*-
+
+from unittest import TestCase
+
+from wuttasync import util as mod
+
+
+class TestDataDiffs(TestCase):
+
+    def test_source_missing_field(self):
+        source = {'foo': 'bar'}
+        target = {'baz': 'xyz', 'foo': 'bar'}
+        self.assertRaises(KeyError, mod.data_diffs, source, target)
+
+    def test_target_missing_field(self):
+        source = {'foo': 'bar', 'baz': 'xyz'}
+        target = {'baz': 'xyz'}
+        self.assertRaises(KeyError, mod.data_diffs, source, target, fields=['foo', 'baz'])
+
+    def test_no_diffs(self):
+        source = {'foo': 'bar', 'baz': 'xyz'}
+        target = {'baz': 'xyz', 'foo': 'bar'}
+        self.assertFalse(mod.data_diffs(source, target))
+
+    def test_with_diffs(self):
+        source = {'foo': 'bar', 'baz': 'xyz'}
+        target = {'baz': 'xyz', 'foo': 'BAR'}
+        result = mod.data_diffs(source, target)
+        self.assertEqual(result, ['foo'])