refactor dumpsys package activity code

tests/android/test_artifact_dumpsys_package_activities.py

@@ -0,0 +1,42 @@
+# Mobile Verification Toolkit (MVT)
+# Copyright (c) 2021-2023 Claudio Guarnieri.
+# Use of this software is governed by the MVT License 1.1 that can be found at
+#   https://license.mvt.re/1.1/
+import logging
+
+from mvt.android.artifacts.dumpsys_package_activities import DumpsysPackageActivities
+from mvt.common.indicators import Indicators
+
+from ..utils import get_artifact
+
+
+class TestDumpsysPackageActivitiesArtifact:
+    def test_parsing(self):
+        dpa = DumpsysPackageActivities()
+        file = get_artifact("android_data/dumpsys_packages.txt")
+        with open(file) as f:
+            data = f.read()
+
+        assert len(dpa.results) == 0
+        dpa.parse(data)
+        assert len(dpa.results) == 4
+        assert dpa.results[0]["package_name"] == "com.samsung.android.app.social"
+        assert (
+            dpa.results[0]["activity"]
+            == "com.samsung.android.app.social/.feed.FeedsActivity"
+        )
+
+    def test_ioc_check(self, indicator_file):
+        dpa = DumpsysPackageActivities()
+        file = get_artifact("android_data/dumpsys_packages.txt")
+        with open(file) as f:
+            data = f.read()
+        dpa.parse(data)
+
+        ind = Indicators(log=logging.getLogger())
+        ind.parse_stix2(indicator_file)
+        ind.ioc_collections[0]["app_ids"].append("com.google.android.gms")
+        dpa.indicators = ind
+        assert len(dpa.detected) == 0
+        dpa.check_indicators()
+        assert len(dpa.detected) == 1