Update how fixtures work during testing.

stix2/__init__.py

@@ -1,5 +1,5 @@
 import collections
-from datetime import datetime
+import datetime
 import json
 import uuid
 
@@ -72,7 +72,7 @@ class Indicator(_STIXBase):
 
         # TODO: do we care about the performance penalty of creating this
         # if we won't need it?
-        now = datetime.now(tz=pytz.UTC)
+        now = datetime.datetime.now(tz=pytz.UTC)
 
         if not kwargs.get('type'):
             kwargs['type'] = 'indicator'
@@ -140,7 +140,7 @@ class Malware(_STIXBase):
 
         # TODO: do we care about the performance penalty of creating this
         # if we won't need it?
-        now = datetime.now(tz=pytz.UTC)
+        now = datetime.datetime.now(tz=pytz.UTC)
 
         if not kwargs.get('type'):
             kwargs['type'] = 'malware'
@@ -215,7 +215,7 @@ class Relationship(_STIXBase):
 
         # TODO: do we care about the performance penalty of creating this
         # if we won't need it?
-        now = datetime.now(tz=pytz.UTC)
+        now = datetime.datetime.now(tz=pytz.UTC)
 
         if not kwargs.get('type'):
             kwargs['type'] = 'relationship'

stix2/test/test_stix2.py

@@ -10,7 +10,7 @@ import stix2
 
 amsterdam = pytz.timezone('Europe/Amsterdam')
 eastern = pytz.timezone('US/Eastern')
-FAKE_TIME = datetime.datetime(2017, 01, 01, 12, 34, 56)
+FAKE_TIME = datetime.datetime(2017, 01, 01, 12, 34, 56, tzinfo=pytz.utc)
 
 
 # Inspired by: http://stackoverflow.com/a/24006251
@@ -19,12 +19,16 @@ def clock(monkeypatch):
 
     class mydatetime(datetime.datetime):
         @classmethod
-        def now(cls):
+        def now(cls, tz=None):
             return FAKE_TIME
 
     monkeypatch.setattr(datetime, 'datetime', mydatetime)
 
 
+def test_clock(clock):
+    assert datetime.datetime.now() == FAKE_TIME
+
+
 @pytest.fixture
 def uuid4(monkeypatch):
     def wrapper():
@@ -47,7 +51,6 @@ def test_my_uuid4_fixture(uuid4):
     assert uuid.uuid4() == "00000000-0000-0000-0000-000000000104"
 
 
-
 @pytest.mark.parametrize('dt,timestamp', [
     (datetime.datetime(2017, 1, 1, tzinfo=pytz.utc), '2017-01-01T00:00:00Z'),
     (amsterdam.localize(datetime.datetime(2017, 1, 1)), '2016-12-31T23:00:00Z'),
@@ -83,17 +86,17 @@ RELATIONSHIP_KWARGS = dict(
 
 
 @pytest.fixture
-def indicator():
-    return stix2.Indicator(id=INDICATOR_ID, **INDICATOR_KWARGS)
+def indicator(uuid4, clock):
+    return stix2.Indicator(**INDICATOR_KWARGS)
 
 
 @pytest.fixture
-def malware():
-    return stix2.Malware(id=MALWARE_ID, **MALWARE_KWARGS)
+def malware(uuid4, clock):
+    return stix2.Malware(**MALWARE_KWARGS)
 
 
 @pytest.fixture
-def relationship():
+def relationship(uuid4, clock):
     return stix2.Relationship(**RELATIONSHIP_KWARGS)
 
 
@@ -129,20 +132,20 @@ def test_indicator_with_all_required_fields():
 
 def test_indicator_autogenerated_fields(indicator):
     assert indicator.type == 'indicator'
-    assert indicator.id.startswith('indicator--')
-    assert indicator.created is not None
-    assert indicator.modified is not None
+    assert indicator.id == 'indicator--00000000-0000-0000-0000-000000000001'
+    assert indicator.created == FAKE_TIME
+    assert indicator.modified == FAKE_TIME
     assert indicator.labels == ['malicious-activity']
     assert indicator.pattern == "[file:hashes.MD5 = 'd41d8cd98f00b204e9800998ecf8427e']"
-    assert indicator.valid_from is not None
+    assert indicator.valid_from == FAKE_TIME
 
     assert indicator['type'] == 'indicator'
-    assert indicator['id'].startswith('indicator--')
-    assert indicator['created'] is not None
-    assert indicator['modified'] is not None
+    assert indicator['id'] == 'indicator--00000000-0000-0000-0000-000000000001'
+    assert indicator['created'] == FAKE_TIME
+    assert indicator['modified'] == FAKE_TIME
     assert indicator['labels'] == ['malicious-activity']
     assert indicator['pattern'] == "[file:hashes.MD5 = 'd41d8cd98f00b204e9800998ecf8427e']"
-    assert indicator['valid_from'] is not None
+    assert indicator['valid_from'] == FAKE_TIME
 
 
 def test_indicator_type_must_be_indicator():
@@ -214,16 +217,16 @@ def test_malware_with_all_required_fields():
 
 def test_malware_autogenerated_fields(malware):
     assert malware.type == 'malware'
-    assert malware.id.startswith('malware--')
-    assert malware.created is not None
-    assert malware.modified is not None
+    assert malware.id == 'malware--00000000-0000-0000-0000-000000000001'
+    assert malware.created == FAKE_TIME
+    assert malware.modified == FAKE_TIME
     assert malware.labels == ['ransomware']
     assert malware.name == "Cryptolocker"
 
     assert malware['type'] == 'malware'
-    assert malware['id'].startswith('malware--')
-    assert malware['created'] is not None
-    assert malware['modified'] is not None
+    assert malware['id'] == 'malware--00000000-0000-0000-0000-000000000001'
+    assert malware['created'] == FAKE_TIME
+    assert malware['modified'] == FAKE_TIME
     assert malware['labels'] == ['ransomware']
     assert malware['name'] == "Cryptolocker"
 
@@ -296,17 +299,17 @@ def test_relationship_all_required_fields():
 
 def test_relationship_autogenerated_fields(relationship):
     assert relationship.type == 'relationship'
-    assert relationship.id.startswith('relationship--')
-    assert relationship.created is not None
-    assert relationship.modified is not None
+    assert relationship.id == 'relationship--00000000-0000-0000-0000-000000000001'
+    assert relationship.created == FAKE_TIME
+    assert relationship.modified == FAKE_TIME
     assert relationship.relationship_type == 'indicates'
     assert relationship.source_ref == INDICATOR_ID
     assert relationship.target_ref == MALWARE_ID
 
     assert relationship['type'] == 'relationship'
-    assert relationship['id'].startswith('relationship--')
-    assert relationship['created'] is not None
-    assert relationship['modified'] is not None
+    assert relationship['id'] == 'relationship--00000000-0000-0000-0000-000000000001'
+    assert relationship['created'] == FAKE_TIME
+    assert relationship['modified'] == FAKE_TIME
     assert relationship['relationship_type'] == 'indicates'
     assert relationship['source_ref'] == INDICATOR_ID
     assert relationship['target_ref'] == MALWARE_ID
@@ -370,13 +373,15 @@ def test_create_relationship_from_objects_rather_than_ids(indicator, malware):
     )
 
     assert relationship.relationship_type == 'indicates'
-    assert relationship.source_ref == INDICATOR_ID
-    assert relationship.target_ref == MALWARE_ID
+    assert relationship.source_ref == 'indicator--00000000-0000-0000-0000-000000000001'
+    assert relationship.target_ref == 'malware--00000000-0000-0000-0000-000000000002'
+    assert relationship.id == 'relationship--00000000-0000-0000-0000-000000000003'
 
 
 def test_create_relationship_with_positional_args(indicator, malware):
     relationship = stix2.Relationship(indicator, 'indicates', malware)
 
     assert relationship.relationship_type == 'indicates'
-    assert relationship.source_ref == INDICATOR_ID
-    assert relationship.target_ref == MALWARE_ID
+    assert relationship.source_ref == 'indicator--00000000-0000-0000-0000-000000000001'
+    assert relationship.target_ref == 'malware--00000000-0000-0000-0000-000000000002'
+    assert relationship.id == 'relationship--00000000-0000-0000-0000-000000000003'