Implemented unit tests for PathRequestService: invalid equipment, topology, and success case

Change-Id: If863b6d2458642a682f2e687501433045c2311c9

tests/service/test_path_request_service.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# @Author: Esther Le Rouzic
+# @Date:   2025-02-03
+import json
+from pathlib import Path
+
+import pytest
+from gnpyapi.core.exception.equipment_error import EquipmentError
+
+from gnpyapi.core.service.path_request_service import PathRequestService
+from gnpyapi.core.exception.topology_error import TopologyError
+
+TEST_DATA_DIR = Path(__file__).parent.parent / 'data'
+TEST_REQ_DIR = TEST_DATA_DIR / 'req'
+TEST_RES_DIR = TEST_DATA_DIR / 'res'
+
+
+def read_json_file(path):
+    with open(path, "r") as file:
+        return json.load(file)
+
+
+def test_path_request_success():
+    input_data = read_json_file(TEST_REQ_DIR / "planning_demand_example.json")
+    expected_response = read_json_file(TEST_RES_DIR / "planning_demand_res.json")
+    topology = input_data["gnpy-api:topology"]
+    equipment = input_data["gnpy-api:equipment"]
+    service = input_data["gnpy-api:service"]
+
+    result = PathRequestService.path_request(topology, equipment, service)
+    assert result == expected_response
+
+
+def test_path_request_invalid_equipment():
+    input_data = read_json_file(TEST_REQ_DIR / "planning_demand_wrong_eqpt.json")
+    topology = input_data["gnpy-api:topology"]
+    equipment = input_data["gnpy-api:equipment"]
+    service = input_data["gnpy-api:service"]
+
+    with pytest.raises(EquipmentError) as exc:
+        PathRequestService.path_request(topology, equipment, service)
+    assert "invalid" in str(exc.value).lower()
+    assert "deltap" in str(exc.value).lower()
+
+
+def test_path_request_invalid_topology():
+    input_data = read_json_file(TEST_REQ_DIR / "planning_demand_wrong_topology.json")
+    topology = input_data["gnpy-api:topology"]
+    equipment = input_data["gnpy-api:equipment"]
+    service = input_data["gnpy-api:service"]
+
+    with pytest.raises(TopologyError) as exc:
+        PathRequestService.path_request(topology, equipment, service)
+    assert "can not find" in str(exc.value).lower()