fix(core): restore adapter command behavior

harness/tests/test_adapter_command_regressions.py

@@ -0,0 +1,84 @@
+from types import SimpleNamespace
+
+import pytest
+import typer
+
+from tht.cli import db_cmd
+from tht.cli.lsh_cmd import _extract_lsh_values
+from tht.mschema.models import Annotations, ColumnPhysical, PhysicalSchema, TablePhysical
+from tht.ports.dwh import DistinctValues, DwhHealth
+from tht.cli import memory_cmd
+from tht.memory import MemoryRecord
+from datetime import datetime
+
+
+def _ping(monkeypatch, health, capsys):
+    monkeypatch.setattr(db_cmd, "load_config", lambda path: SimpleNamespace(database=SimpleNamespace(user="u")))
+    monkeypatch.setattr(db_cmd, "build_dwh", lambda cfg: SimpleNamespace(health=lambda: health))
+    try:
+        db_cmd.ping_cmd()
+    except typer.Exit as exc:
+        code = exc.exit_code
+    else:
+        code = 0
+    return code, capsys.readouterr()
+
+
+def test_db_ping_public_health_success(monkeypatch, capsys):
+    code, output = _ping(monkeypatch, DwhHealth(ok=True, database="d", schema="s", read_only=True), capsys)
+    assert code == 0
+    assert "OK: connesso a d (schema s)" in output.out
+
+
+def test_db_ping_rest_inaccessible_historical_wording(monkeypatch, capsys):
+    code, output = _ping(monkeypatch, DwhHealth(ok=False, detail="{'db_connected': False}", error_kind="inaccessible"), capsys)
+    assert code == 1
+    assert "ERRORE: DWH non accessibile via REST (risposta: {'db_connected': False})." in output.err
+
+
+def test_db_ping_direct_connection_historical_wording(monkeypatch, capsys):
+    code, output = _ping(monkeypatch, DwhHealth(ok=False, detail="connection refused", error_kind="connection"), capsys)
+    assert code == 1
+    assert "ERRORE di connessione: connection refused" in output.err
+
+
+@pytest.mark.parametrize(("limit", "truncated"), [(7, False), (1201, True)])
+def test_lsh_extraction_honors_configured_limit(limit, truncated):
+    physical = PhysicalSchema(database="d", schema="s", introspected_at=datetime(2026, 1, 1), tables={
+        "t": TablePhysical(columns={"c": ColumnPhysical(type="text", eligible=True)})
+    })
+    calls = []
+    class Dwh:
+        def distinct_values(self, table, column, *, limit):
+            calls.append(limit)
+            return DistinctValues(values=list(range(limit)), truncated=truncated)
+    values, _, reports = _extract_lsh_values(Dwh(), physical, Annotations(), limit)
+    assert calls == [limit]
+    assert len(values["t"]["c"]) == limit
+    assert [report.indexed for report in reports] == ([limit] if truncated else [])
+
+
+def test_memory_command_writes_through_factory_vector_store(monkeypatch):
+    store = SimpleNamespace(existing_hashes=lambda *args: {}, upsert=lambda table, rows: 1)
+    captured = []
+    original_upsert = store.upsert
+    store.upsert = lambda table, rows: captured.extend(rows) or original_upsert(table, rows)
+    cfg = SimpleNamespace(embeddings=object(), vector_write_rest=object())
+    manifest = SimpleNamespace(id="s1")
+    record = MemoryRecord(id="m1", ts=datetime(2026, 1, 1), session_id="s1",
+                          decision_seq=7, type="table_promoted", subject="t",
+                          question_context="q")
+    monkeypatch.setattr(memory_cmd, "_load_config_or_exit", lambda path: cfg)
+    monkeypatch.setattr(memory_cmd, "load_session_or_exit", lambda cfg, session: manifest)
+    monkeypatch.setattr(memory_cmd, "require_vector_write_allowed", lambda *args: None)
+    monkeypatch.setattr(memory_cmd, "has_vector_write_rest", lambda cfg: True)
+    monkeypatch.setattr(memory_cmd, "session_dir", lambda *args: None)
+    monkeypatch.setattr(memory_cmd, "registry_path", lambda cfg: None)
+    monkeypatch.setattr("tht.adapters.factory.build_vector_store", lambda cfg, require_write: store)
+    monkeypatch.setattr("tht.cli.vector_cmd.make_embedder",
+                        lambda cfg: SimpleNamespace(embed_documents=lambda texts: [[0.1]]))
+    monkeypatch.setattr("tht.memory.promote", lambda *args, **kwargs: None)
+    monkeypatch.setattr("tht.memory.load_registry", lambda path: [record])
+    memory_cmd.save_one_cmd(session="s1", decision=7, json_out=True)
+    from tht.ports.vector import VectorWriteRecord
+    assert len(captured) == 1 and isinstance(captured[0], VectorWriteRecord)

harness/tests/test_dwh_adapters.py

@@ -6,6 +6,7 @@ from tht.db.sampling import distinct_values_rest, sample_column_rest
 from tht.execute import ExecutionError
 from tht.ports import DistinctValues, DwhAdapter
 from tht.rest.client import RestError
+from tht.adapters.dwh import PostgresDwhAdapter
 
 
 def postgres_factory():
@@ -145,3 +146,18 @@ def test_postgres_health_only_normalizes_database_errors(monkeypatch):
     )
     with pytest.raises(ValueError, match="programming bug"):
         adapter.health()
+
+
+def test_non_default_timeout_reaches_query_and_explain(monkeypatch):
+    adapter = PostgresDwhAdapter(
+        DatabaseConfig(database="analytics", schema="dw", user="reader", password="secret"),
+        statement_timeout_ms=12_345,
+    )
+    calls = []
+    monkeypatch.setattr("tht.adapters.dwh.postgres.execute.run_query",
+                        lambda engine, sql, *, limit, timeout_ms: calls.append(("run", timeout_ms)))
+    monkeypatch.setattr("tht.adapters.dwh.postgres.execute.explain",
+                        lambda engine, sql, *, timeout_ms: calls.append(("explain", timeout_ms)))
+    adapter.run_query("select 1", limit=2)
+    adapter.explain("select 1")
+    assert calls == [("run", 12_345), ("explain", 12_345)]