feat(tht): schema columns reader (name/description/type/pk) from catalog

2026-07-06 23:25:00 +02:00
parent bfb54922f7
commit 9339a8272b
2 changed files with 80 additions and 0 deletions
@@ -0,0 +1,40 @@
+import json
+from datetime import datetime
+
+from typer.testing import CliRunner
+
+from tht.cli import app  # the root Typer app that mounts schema_app as "schema"
+from tht.mschema.models import ColumnPhysical, PhysicalSchema, TablePhysical
+
+
+def _write_catalog(tmp_path):
+    phys = PhysicalSchema(
+        database="d", schema="s", introspected_at=datetime(2026, 1, 1),
+        tables={
+            "dim_patient": TablePhysical(
+                comment="Anagrafica",
+                columns={
+                    "cod_paz": ColumnPhysical(type="bigint", pk=True, comment="Codice paziente"),
+                    "nome": ColumnPhysical(type="text", comment="Nome"),
+                },
+            )
+        },
+    )
+    out = tmp_path / "artifacts" / "mschema" / "physical.yaml"
+    phys.to_yaml(out)
+    return out
+
+
+def test_schema_columns_json(tmp_path, monkeypatch):
+    _write_catalog(tmp_path)
+    cfg = tmp_path / "workspace.yaml"
+    cfg.write_text(
+        "database: {database: d, schema: s, user: u, password: p, transport: direct}\n"
+        f"paths: {{artifacts: {tmp_path/'artifacts'}, indexes: {tmp_path/'i'}, sessions: {tmp_path/'s'}}}\n"
+    )
+    res = CliRunner().invoke(app, ["schema", "columns", "dim_patient", "--json", "-c", str(cfg)])
+    assert res.exit_code == 0, res.output
+    data = json.loads(res.output)
+    assert data["table"] == "dim_patient"
+    assert data["description"] == "Anagrafica"
+    assert {"name": "cod_paz", "description": "Codice paziente", "type": "bigint", "pk": True} in data["columns"]