Normalize IDs in tests.

stix2/test/test_stix2.py

@@ -21,6 +21,10 @@ def test_timestamp_formatting(dt, timestamp):
     assert stix2.format_datetime(dt) == timestamp
 
 
+INDICATOR_ID = "indicator--01234567-89ab-cdef-0123-456789abcdef"
+MALWARE_ID = "malware--fedcba98-7654-3210-fedc-ba9876543210"
+RELATIONSHIP_ID = "relationship--00000000-1111-2222-3333-444444444444"
+
 # Minimum required args for an Indicator instance
 INDICATOR_KWARGS = dict(
     labels=['malicious-activity'],
@@ -37,25 +41,19 @@ MALWARE_KWARGS = dict(
 # Minimum required args for a Relationship instance
 RELATIONSHIP_KWARGS = dict(
     relationship_type="indicates",
-    source_ref="indicator--01234567-89ab-cdef-0123-456789abcdef",
-    target_ref="malware--fedcba98-7654-3210-fedc-ba9876543210",
+    source_ref=INDICATOR_ID,
+    target_ref=MALWARE_ID,
 )
 
 
 @pytest.fixture
 def indicator():
-    return stix2.Indicator(
-        id="indicator--01234567-89ab-cdef-0123-456789abcdef",
-        **INDICATOR_KWARGS
-    )
+    return stix2.Indicator(id=INDICATOR_ID, **INDICATOR_KWARGS)
 
 
 @pytest.fixture
 def malware():
-    return stix2.Malware(
-        id="malware--fedcba98-7654-3210-fedc-ba9876543210",
-        **MALWARE_KWARGS
-    )
+    return stix2.Malware(id=MALWARE_ID, **MALWARE_KWARGS)
 
 
 @pytest.fixture
@@ -82,7 +80,7 @@ def test_indicator_with_all_required_fields():
 
     indicator = stix2.Indicator(
         type="indicator",
-        id="indicator--01234567-89ab-cdef-0123-456789abcdef",
+        id=INDICATOR_ID,
         labels=['malicious-activity'],
         pattern="[file:hashes.MD5 = 'd41d8cd98f00b204e9800998ecf8427e']",
         created=now,
@@ -153,7 +151,7 @@ def test_invalid_kwarg_to_indicator():
 
 EXPECTED_MALWARE = """{
     "created": "2016-05-12T08:17:27Z",
-    "id": "malware--0c7b5b88-8ff7-4a4d-aa9d-feb398cd0061",
+    "id": "malware--fedcba98-7654-3210-fedc-ba9876543210",
     "labels": [
         "ransomware"
     ],
@@ -168,7 +166,7 @@ def test_malware_with_all_required_fields():
 
     malware = stix2.Malware(
         type="malware",
-        id="malware--0c7b5b88-8ff7-4a4d-aa9d-feb398cd0061",
+        id=MALWARE_ID,
         created=now,
         modified=now,
         labels=["ransomware"],
@@ -236,7 +234,7 @@ def test_invalid_kwarg_to_malware():
 
 EXPECTED_RELATIONSHIP = """{
     "created": "2016-04-06T20:06:37Z",
-    "id": "relationship--44298a74-ba52-4f0c-87a3-1824e67d7fad",
+    "id": "relationship--00000000-1111-2222-3333-444444444444",
     "modified": "2016-04-06T20:06:37Z",
     "relationship_type": "indicates",
     "source_ref": "indicator--01234567-89ab-cdef-0123-456789abcdef",
@@ -245,17 +243,17 @@ EXPECTED_RELATIONSHIP = """{
 }"""
 
 
-def test_relationship_all_required_fields(indicator, malware):
+def test_relationship_all_required_fields():
     now = datetime.datetime(2016, 4, 6, 20, 6, 37, tzinfo=pytz.utc)
 
     relationship = stix2.Relationship(
         type='relationship',
-        id='relationship--44298a74-ba52-4f0c-87a3-1824e67d7fad',
+        id=RELATIONSHIP_ID,
         created=now,
         modified=now,
         relationship_type='indicates',
-        source_ref=indicator.id,
-        target_ref=malware.id,
+        source_ref=INDICATOR_ID,
+        target_ref=MALWARE_ID,
     )
     assert str(relationship) == EXPECTED_RELATIONSHIP
 
@@ -266,16 +264,16 @@ def test_relationship_autogenerated_fields(relationship):
     assert relationship.created is not None
     assert relationship.modified is not None
     assert relationship.relationship_type == 'indicates'
-    assert relationship.source_ref == "indicator--01234567-89ab-cdef-0123-456789abcdef"
-    assert relationship.target_ref == "malware--fedcba98-7654-3210-fedc-ba9876543210"
+    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['relationship_type'] == 'indicates'
-    assert relationship['source_ref'] == "indicator--01234567-89ab-cdef-0123-456789abcdef"
-    assert relationship['target_ref'] == "malware--fedcba98-7654-3210-fedc-ba9876543210"
+    assert relationship['source_ref'] == INDICATOR_ID
+    assert relationship['target_ref'] == MALWARE_ID
 
 
 def test_relationship_type_must_be_relationship():
@@ -310,7 +308,7 @@ def test_relationship_required_field_target_ref():
         # relationship_type and source_ref are checked first, so make sure those are provided
         relationship = stix2.Relationship(
             relationship_type='indicates',
-            source_ref='indicator--01234567-89ab-cdef-0123-456789abcdef'
+            source_ref=INDICATOR_ID
         )
     assert "Missing required field for Relationship: 'target_ref'." in str(excinfo)