ticker-validate: cover failure + side-effect paths

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/test_ticker_validate.py

@@ -60,3 +60,78 @@ async def test_validate_happy_path(tmp_path, monkeypatch):
     assert result["price"] == 172.40
     assert result["currency"] == "USD"
     assert result["as_of"] == "2026-05-27"
+
+
+@pytest.mark.asyncio
+async def test_validate_unknown_symbol(tmp_path, monkeypatch):
+    from app.routers.ticker_validate import validate_ticker
+    from app.services.market import Quote
+    import app.routers.ticker_validate as mod
+
+    _, factory, setup = _build_session_factory(tmp_path)
+    await setup()
+
+    # Mock fetch_yahoo to return a Quote with error and no price.
+    async def _fake_yahoo(client, symbol, label, note, anchor=None):
+        return Quote(symbol=symbol, source="yahoo", label=label, note=note,
+                     price=None, currency=None, as_of=None,
+                     error="empty result")
+    monkeypatch.setattr(mod, "fetch_yahoo", _fake_yahoo)
+
+    async with factory() as session:
+        result = await validate_ticker(symbol="XYZNOTREAL", session=session)
+
+    assert result["ok"] is False
+    assert "not recognised" in result["error"].lower()
+
+
+@pytest.mark.asyncio
+async def test_validate_empty_symbol_rejects():
+    from app.routers.ticker_validate import validate_ticker
+
+    # Direct call — no session needed because we short-circuit before any DB use.
+    result = await validate_ticker(symbol="   ", session=None)
+    assert result["ok"] is False
+    assert "required" in result["error"].lower()
+
+
+@pytest.mark.asyncio
+async def test_validate_seeds_universe_and_quote(tmp_path, monkeypatch):
+    """Side-effect check: on success, the symbol is upserted into the
+    universe and a Quote row is written."""
+    from sqlalchemy import select
+
+    from app.models import Quote as QuoteModel
+    from app.routers.ticker_validate import validate_ticker
+    from app.services.market import Quote
+    import app.routers.ticker_validate as mod
+
+    _, factory, setup = _build_session_factory(tmp_path)
+    await setup()
+
+    upsert_calls: list[list[str]] = []
+
+    async def _fake_yahoo(client, symbol, label, note, anchor=None):
+        return Quote(symbol=symbol, source="yahoo", label=label, note=note,
+                     price=100.0, currency="USD", as_of="2026-05-27", changes={})
+    monkeypatch.setattr(mod, "fetch_yahoo", _fake_yahoo)
+
+    async def _fake_upsert(session, tickers):
+        upsert_calls.append(list(tickers))
+        return len(list(tickers))
+    monkeypatch.setattr(mod, "upsert_tickers", _fake_upsert)
+
+    async with factory() as session:
+        result = await validate_ticker(symbol="MSFT", session=session)
+
+    assert result["ok"] is True
+    assert upsert_calls == [["MSFT"]]
+
+    # Quote row was written.
+    async with factory() as session:
+        rows = (await session.execute(
+            select(QuoteModel).where(QuoteModel.symbol == "MSFT")
+        )).scalars().all()
+    assert len(rows) == 1
+    assert rows[0].price == 100.0
+    assert rows[0].currency == "USD"