feat(mcp): helper track_mcp_tool pour tracer les appels MCP dans Matomo

tests/mcp/test_tracking.py

@@ -0,0 +1,42 @@
+import src.utils.tracking as tracking
+
+
+def test_track_mcp_tool_sends_action_and_dimension(monkeypatch):
+    captured = {}
+
+    def fake_post(url, params):
+        captured["url"] = url
+        captured["params"] = params
+
+        class _R:
+            def raise_for_status(self):
+                pass
+
+        return _R()
+
+    monkeypatch.setattr(tracking, "DEVELOPMENT", False)
+    monkeypatch.setattr(tracking, "post", fake_post)
+    monkeypatch.setenv("MATOMO_DOMAIN", "matomo.example")
+    monkeypatch.setenv("MATOMO_ID_SITE", "1")
+
+    tracking.track_mcp_tool("rechercher_marches", query="informatique")
+
+    assert captured["params"]["action_name"] == "MCP / rechercher_marches"
+    assert captured["params"]["dimension1"] == "rechercher_marches"
+    assert captured["params"]["search"] == "informatique"
+
+
+def test_track_mcp_tool_noop_in_development(monkeypatch):
+    called = False
+
+    def fake_post(url, params):
+        nonlocal called
+        called = True
+
+    monkeypatch.setattr(tracking, "DEVELOPMENT", True)
+    monkeypatch.setattr(tracking, "post", fake_post)
+    monkeypatch.setenv("MATOMO_DOMAIN", "matomo.example")
+
+    tracking.track_mcp_tool("stats_acheteur")
+
+    assert called is False