Merge f4b5872 into 7d19196

README.md

@@ -32,7 +32,7 @@ A JSON fingerprint consists of three parts: the version of the underlying canoni
 
 ## v1 release checklist (jfpv1)
 
-This is a list of high-level development and documentation tasks, which need to be completed prior to freezing the API for v1. Before v1, backwards-incompatible changes to the API are possible, although not likely since v0.10.0.
+This is a list of high-level development and documentation tasks, which need to be completed prior to freezing the API for v1. Before v1, backwards-incompatible changes to the API are possible, although not likely from v0.10.0 onwards. Since the jfpv1 spec is work in progress, the fingerprints may not be fully comparable between different _0.y.z_ versions.
 
 - [ ] Formalized the jfpv1 specification
 - [x] JSON type support

json_fingerprint/_jfpv1.py

@@ -10,7 +10,15 @@
 
 def _create_json_hash(data: Any, hash_function: str) -> str:
     """Create an sha256 hash from json-converted data, sorted by key names."""
-    stringified = json.dumps(data, sort_keys=True)
+    stringified = json.dumps(
+        data,
+        allow_nan=False,
+        ensure_ascii=False,
+        indent=None,
+        separators=(',', ':'),
+        skipkeys=False,
+        sort_keys=True,
+    )
     if hash_function == 'sha256':
         m = hashlib.sha256()
     if hash_function == 'sha384':

json_fingerprint/tests/test_create.py

@@ -58,7 +58,7 @@ def test_jfpv1_sha256_mixed_order(self):
         fp_1 = create(self.test_obj_1, hash_function='sha256', version=1)
         fp_2 = create(self.test_obj_2, hash_function='sha256', version=1)
         self.assertEqual(fp_1, fp_2)
-        self.assertEqual(fp_1, 'jfpv1$sha256$0b83bd27ab1227c6da76dc161f4fb4559f1876eb7fb4cc6257e675c8b4175cbd')
+        self.assertEqual(fp_1, 'jfpv1$sha256$b182c755347a6884fd11f1194cbe0961f548e5ac62be78a56c48c3c05eb56650')
 
     def test_jfpv1_sha256_structural_distinction_1(self):
         """Test jfpv1 json flattener's structural value distinction.

json_fingerprint/tests/test_jfpv1.py

@@ -12,7 +12,15 @@ def test_create_json_hash(self):
         Verify that:
         - Key-value pairs are sorted properly and the resulting SHA256 matches the expected hash"""
         data = {'value': 'bar', 'path': '{foo}'}
-        stringified = json.dumps(data, sort_keys=True)
+        stringified = json.dumps(
+            data,
+            allow_nan=False,
+            ensure_ascii=False,
+            indent=None,
+            separators=(',', ':'),
+            skipkeys=False,
+            sort_keys=True,
+        )
         m = hashlib.sha256()
         m.update(stringified.encode('utf-8'))
         expected_hex_digest = m.hexdigest()