Initial DumasNodes seed

tests/test_dumas_json_nodes.py

@@ -0,0 +1,23 @@
+import unittest
+
+from dumas_json_nodes import DumasJSONStringToObjectNode
+
+
+class DumasJSONStringToObjectNodeTests(unittest.TestCase):
+    def test_parses_valid_json(self):
+        node = DumasJSONStringToObjectNode()
+
+        result = node.convert_string_to_json('{"name":"Dumas","count":2}')
+
+        self.assertEqual(result, ({"name": "Dumas", "count": 2},))
+
+    def test_returns_none_for_invalid_json(self):
+        node = DumasJSONStringToObjectNode()
+
+        result = node.convert_string_to_json('{"name":')
+
+        self.assertEqual(result, (None,))
+
+
+if __name__ == "__main__":
+    unittest.main()