feat(assistant): #91 etapes enrichies (sous-sections Reflechon/Sources, chevrons, indicateur anime, suppression barre de chargement)

tests/test_bookslm.py

@@ -1024,3 +1024,54 @@ class TestEffectiveModel:
 
         assert _effective_model("nope-not-a-provider", None) == ""
         assert _effective_model(None, None) == ""
+
+
+class TestToolEventSources:
+    """Web sources surfaced in the « sources » section of the steps block."""
+
+    @staticmethod
+    def _record(name, result):
+        from backend.agent.loop import ToolCallRecord
+
+        return ToolCallRecord(name=name, arguments={}, ok=True, result=result)
+
+    def test_web_search_results_become_sources(self):
+        from backend.bookslm_routes import _tool_sources
+
+        rec = self._record("web_search", {"results": [
+            {"title": "Météo Paris", "url": "https://exemple.fr/meteo"},
+            {"title": "Sans URL", "url": ""},
+            {"title": "", "url": "https://exemple.fr/b"},
+        ]})
+        sources = _tool_sources(rec)
+        assert sources == [
+            {"title": "Météo Paris", "url": "https://exemple.fr/meteo"},
+            {"title": "https://exemple.fr/b", "url": "https://exemple.fr/b"},
+        ]
+
+    def test_fetch_url_yields_one_source(self):
+        from backend.bookslm_routes import _tool_sources
+
+        rec = self._record("fetch_url", {"url": "https://exemple.fr/a", "title": "Titre"})
+        assert _tool_sources(rec) == [{"title": "Titre", "url": "https://exemple.fr/a"}]
+
+    def test_other_tools_yield_no_sources(self):
+        from backend.bookslm_routes import _tool_sources
+
+        assert _tool_sources(self._record("read_file", {"content": "x"})) == []
+        assert _tool_sources(self._record("web_search", {"error": "boom"})) == []
+        assert _tool_sources(self._record("fetch_url", "not-a-dict")) == []
+
+    def test_sse_payload_carries_the_sources(self):
+        import json as _json
+
+        from backend.bookslm_routes import _tool_event_sse
+
+        rec = self._record("web_search", {"results": [{"title": "T", "url": "https://exemple.fr/t"}]})
+        payload = _tool_event_sse(rec)
+        assert payload.startswith("event: tool\ndata: ")
+        data = _json.loads(payload.split("data: ", 1)[1])
+        assert data["name"] == "web_search"
+        assert data["sources"] == [{"title": "T", "url": "https://exemple.fr/t"}]
+        # Non-web tools keep the key, empty, so the UI never guesses.
+        assert _json.loads(_tool_event_sse(self._record("read_file", {})).split("data: ", 1)[1])["sources"] == []