Add unit-tests for open port violation alert

tests/alerts/test_open_port_violation.py

@@ -0,0 +1,84 @@
+from positive_alert_test_case import PositiveAlertTestCase
+from negative_alert_test_case import NegativeAlertTestCase
+
+from alert_test_suite import AlertTestSuite
+
+
+class TestAlertOpenPortViolation(AlertTestSuite):
+    alert_filename = "open_port_violation"
+
+    # This event is the default positive event that will cause the
+    # alert to trigger
+    default_event = {
+        "_type": "event",
+        "_source": {
+            "tags": ["open_port_policy_violation"],
+            "details": {
+                "destinationipaddress": "220.231.44.213",
+                "destinationport": 25,
+            }
+        }
+    }
+
+    # This alert is the expected result from running this task
+    default_alert = {
+        "category": "open_port_policy_violation",
+        "tags": ['open_port_policy_violation'],
+        "severity": "CRITICAL",
+        "summary": '10 unauthorized open port(s) on 220.231.44.213 (25 25 25 25 25 )',
+    }
+
+    test_cases = []
+
+    default_events = list()
+    for num in xrange(10):
+        default_events.append(AlertTestSuite.copy(default_event))
+
+    test_cases.append(
+        PositiveAlertTestCase(
+            description="Positive test with default events and default alert expected",
+            events=default_events,
+            expected_alert=default_alert
+        )
+    )
+
+    custom_events = default_events
+    for temp_event in custom_events:
+        temp_event['_source']['utctimestamp'] = AlertTestSuite.subtract_from_timestamp_lambda(date_timedelta={'minutes': 239})
+    test_cases.append(
+        PositiveAlertTestCase(
+            description="Positive test with events a minute earlier",
+            events=custom_events,
+            expected_alert=default_alert
+        )
+    )
+
+    custom_events = default_events
+    for temp_event in custom_events:
+        temp_event['_type'] = 'bad'
+    test_cases.append(
+        NegativeAlertTestCase(
+            description="Negative test case with events with incorrect _type",
+            events=custom_events,
+        )
+    )
+
+    custom_events = default_events
+    for temp_event in custom_events:
+        temp_event['_source']['tags'] = 'bad tag example'
+    test_cases.append(
+        NegativeAlertTestCase(
+            description="Negative test case with events with incorrect tags",
+            events=custom_events,
+        )
+    )
+
+    custom_events = default_events
+    for temp_event in custom_events:
+        temp_event['_source']['utctimestamp'] = AlertTestSuite.subtract_from_timestamp_lambda({'minutes': 241})
+    test_cases.append(
+        NegativeAlertTestCase(
+            description="Negative test case with old timestamp",
+            events=custom_events,
+        )
+    )