Add testcases for mongo ext_pillar and returner

tests/pytests/unit/pillar/test_mongo.py

@@ -0,0 +1,30 @@
+import pytest
+
+import salt.exceptions
+import salt.pillar.mongo as mongo
+from tests.support.mock import patch
+
+
+@pytest.fixture
+def configure_loader_modules():
+
+    return {
+        mongo: {
+            "__opts__": {
+                "mongo.uri": "mongodb://root:pass@localhost27017/salt?authSource=admin"
+            }
+        }
+    }
+
+
+def test_config_exception():
+    opts = {
+        "mongo.host": "localhost",
+        "mongo.port": 27017,
+        "mongo.user": "root",
+        "mongo.password": "pass",
+        "mongo.uri": "mongodb://root:pass@localhost27017/salt?authSource=admin",
+    }
+    with patch.dict(mongo.__opts__, opts):
+        with pytest.raises(salt.exceptions.SaltConfigurationError):
+            mongo.ext_pillar("minion1", {})

tests/pytests/unit/returners/test_mongo_future_return.py

@@ -0,0 +1,31 @@
+import pytest
+
+import salt.exceptions
+import salt.returners.mongo_future_return as mongo
+from tests.support.mock import patch
+
+
+@pytest.fixture
+def configure_loader_modules():
+
+    return {
+        mongo: {
+            "__opts__": {
+                "mongo.uri": "mongodb://root:pass@localhost27017/salt?authSource=admin"
+            }
+        }
+    }
+
+
+@patch("salt.returners.mongo_future_return.PYMONGO_VERSION", "4.3.2", create=True)
+def test_config_exception():
+    opts = {
+        "mongo.host": "localhost",
+        "mongo.port": 27017,
+        "mongo.user": "root",
+        "mongo.password": "pass",
+        "mongo.uri": "mongodb://root:pass@localhost27017/salt?authSource=admin",
+    }
+    with patch.dict(mongo.__opts__, opts):
+        with pytest.raises(salt.exceptions.SaltConfigurationError):
+            mongo.returner({})