Added more test coverage

tests/test_api/test_telemetry.py

@@ -1,5 +1,7 @@
 """Tests for telemetry API routes."""
 
+from datetime import datetime, timedelta, timezone
+
 
 class TestListTelemetry:
     """Tests for GET /telemetry endpoint."""
@@ -51,3 +53,68 @@ class TestGetTelemetry:
         """Test getting a non-existent telemetry record."""
         response = client_no_auth.get("/api/v1/telemetry/nonexistent-id")
         assert response.status_code == 404
+
+
+class TestListTelemetryFilters:
+    """Tests for telemetry list query filters."""
+
+    def test_filter_by_received_by(
+        self,
+        client_no_auth,
+        sample_telemetry,
+        sample_telemetry_with_receiver,
+        receiver_node,
+    ):
+        """Test filtering telemetry by receiver node."""
+        response = client_no_auth.get(
+            f"/api/v1/telemetry?received_by={receiver_node.public_key}"
+        )
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["items"]) == 1
+
+    def test_filter_by_since(self, client_no_auth, api_db_session):
+        """Test filtering telemetry by since timestamp."""
+        from meshcore_hub.common.models import Telemetry
+
+        now = datetime.now(timezone.utc)
+        old_time = now - timedelta(days=7)
+
+        # Create old telemetry
+        old_telemetry = Telemetry(
+            node_public_key="old123old123old123old123old123ol",
+            parsed_data={"battery_level": 10.0},
+            received_at=old_time,
+        )
+        api_db_session.add(old_telemetry)
+        api_db_session.commit()
+
+        # Filter since yesterday - should not include old telemetry
+        since = (now - timedelta(days=1)).strftime("%Y-%m-%dT%H:%M:%S")
+        response = client_no_auth.get(f"/api/v1/telemetry?since={since}")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["items"]) == 0
+
+    def test_filter_by_until(self, client_no_auth, api_db_session):
+        """Test filtering telemetry by until timestamp."""
+        from meshcore_hub.common.models import Telemetry
+
+        now = datetime.now(timezone.utc)
+        old_time = now - timedelta(days=7)
+
+        # Create old telemetry
+        old_telemetry = Telemetry(
+            node_public_key="until123until123until123until12",
+            parsed_data={"battery_level": 20.0},
+            received_at=old_time,
+        )
+        api_db_session.add(old_telemetry)
+        api_db_session.commit()
+
+        # Filter until 5 days ago - should include old telemetry
+        until = (now - timedelta(days=5)).strftime("%Y-%m-%dT%H:%M:%S")
+        response = client_no_auth.get(f"/api/v1/telemetry?until={until}")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["items"]) == 1