test: require signal facts in research artifact

tests/test_artifact.py

@@ -89,6 +89,22 @@ def test_research_artifact_projects_versioned_queryable_fact_tables() -> None:
     assert artifact.nav["benchmark_return"].tolist() == pytest.approx(
         [0.0, 0.01, -0.01, 0.02]
     )
+    assert artifact.signals.columns.tolist() == [
+        "run_id",
+        "signal_date",
+        "execution_date",
+        "asset_id",
+        "factor_score",
+        "target_weight",
+    ]
+    first_signal = artifact.signals[
+        artifact.signals["signal_date"] == result.factor_scores.index[0].date()
+    ]
+    assert first_signal.set_index("asset_id").loc["A", "factor_score"] == 2.0
+    assert first_signal.set_index("asset_id").loc["A", "target_weight"] == 1.0
+    assert first_signal["execution_date"].unique().tolist() == [
+        result.schedule.signal_to_execution.iloc[0].date()
+    ]
     assert set(artifact.trades["side"]) == {"buy", "sell"}
     assert {"security", "cash"}.issubset(set(artifact.positions["asset_type"]))
     assert artifact.positions.groupby("trade_date")["weight"].sum().tolist() == pytest.approx(