Adding upstream version 1.1.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/test_adapter.py

@@ -0,0 +1,158 @@
+from __future__ import annotations
+
+import sys
+from datetime import date, datetime
+
+import pytest
+from harlequin.adapter import HarlequinAdapter, HarlequinConnection, HarlequinCursor
+from harlequin.catalog import Catalog, CatalogItem
+from harlequin.exception import HarlequinConnectionError, HarlequinQueryError
+from harlequin_postgres.adapter import (
+    HarlequinPostgresAdapter,
+    HarlequinPostgresConnection,
+)
+from textual_fastdatatable.backend import create_backend
+
+if sys.version_info < (3, 10):
+    from importlib_metadata import entry_points
+else:
+    from importlib.metadata import entry_points
+
+TEST_DB_CONN = "postgresql://postgres:for-testing@localhost:5432"
+
+
+def test_plugin_discovery() -> None:
+    PLUGIN_NAME = "postgres"
+    eps = entry_points(group="harlequin.adapter")
+    assert eps[PLUGIN_NAME]
+    adapter_cls = eps[PLUGIN_NAME].load()
+    assert issubclass(adapter_cls, HarlequinAdapter)
+    assert adapter_cls == HarlequinPostgresAdapter
+
+
+def test_connect() -> None:
+    conn = HarlequinPostgresAdapter(conn_str=(TEST_DB_CONN,)).connect()
+    assert isinstance(conn, HarlequinConnection)
+
+
+def test_init_extra_kwargs() -> None:
+    assert HarlequinPostgresAdapter(
+        conn_str=(TEST_DB_CONN,), foo=1, bar="baz"
+    ).connect()
+
+
+@pytest.mark.parametrize(
+    "conn_str",
+    [
+        ("foo",),
+        ("host=foo",),
+        ("postgresql://admin:pass@foo:5432/db",),
+    ],
+)
+def test_connect_raises_connection_error(conn_str: tuple[str]) -> None:
+    with pytest.raises(HarlequinConnectionError):
+        _ = HarlequinPostgresAdapter(conn_str=conn_str, connect_timeout=0.1).connect()
+
+
+@pytest.mark.parametrize(
+    "conn_str,options,expected",
+    [
+        (("",), {}, "localhost:5432/postgres"),
+        (("host=foo",), {}, "foo:5432/postgres"),
+        (("postgresql://foo",), {}, "foo:5432/postgres"),
+        (("postgresql://foo",), {"port": 5431}, "foo:5431/postgres"),
+        (("postgresql://foo/mydb",), {"port": 5431}, "foo:5431/mydb"),
+        (("postgresql://admin:pass@foo/mydb",), {"port": 5431}, "foo:5431/mydb"),
+        (("postgresql://admin:pass@foo:5431/mydb",), {}, "foo:5431/mydb"),
+    ],
+)
+def test_connection_id(
+    conn_str: tuple[str], options: dict[str, int | float | str | None], expected: str
+) -> None:
+    adapter = HarlequinPostgresAdapter(
+        conn_str=conn_str,
+        **options,  # type: ignore[arg-type]
+    )
+    assert adapter.connection_id == expected
+
+
+def test_get_catalog(connection: HarlequinPostgresConnection) -> None:
+    catalog = connection.get_catalog()
+    assert isinstance(catalog, Catalog)
+    assert catalog.items
+    assert isinstance(catalog.items[0], CatalogItem)
+
+
+def test_get_completions(connection: HarlequinPostgresConnection) -> None:
+    completions = connection.get_completions()
+    test_labels = ["atomic", "greatest", "point_right", "autovacuum"]
+    filtered = list(filter(lambda x: x.label in test_labels, completions))
+    assert len(filtered) == 4
+    value_filtered = list(filter(lambda x: x.value in test_labels, completions))
+    assert len(value_filtered) == 4
+
+
+def test_execute_ddl(connection: HarlequinPostgresConnection) -> None:
+    cur = connection.execute("create table foo (a int)")
+    assert cur is None
+
+
+def test_execute_select(connection: HarlequinPostgresConnection) -> None:
+    cur = connection.execute("select 1 as a")
+    assert isinstance(cur, HarlequinCursor)
+    assert cur.columns() == [("a", "#")]
+    data = cur.fetchall()
+    backend = create_backend(data)
+    assert backend.column_count == 1
+    assert backend.row_count == 1
+
+
+def test_execute_select_dupe_cols(connection: HarlequinPostgresConnection) -> None:
+    cur = connection.execute("select 1 as a, 2 as a, 3 as a")
+    assert isinstance(cur, HarlequinCursor)
+    assert len(cur.columns()) == 3
+    data = cur.fetchall()
+    backend = create_backend(data)
+    assert backend.column_count == 3
+    assert backend.row_count == 1
+
+
+def test_set_limit(connection: HarlequinPostgresConnection) -> None:
+    cur = connection.execute("select 1 as a union all select 2 union all select 3")
+    assert isinstance(cur, HarlequinCursor)
+    cur = cur.set_limit(2)
+    assert isinstance(cur, HarlequinCursor)
+    data = cur.fetchall()
+    backend = create_backend(data)
+    assert backend.column_count == 1
+    assert backend.row_count == 2
+
+
+def test_execute_raises_query_error(connection: HarlequinPostgresConnection) -> None:
+    with pytest.raises(HarlequinQueryError):
+        _ = connection.execute("sel;")
+
+
+def test_inf_timestamps(connection: HarlequinPostgresConnection) -> None:
+    cur = connection.execute(
+        """select
+            'infinity'::date,
+            'infinity'::timestamp,
+            'infinity'::timestamptz,
+            '-infinity'::date,
+            '-infinity'::timestamp,
+            '-infinity'::timestamptz
+        """
+    )
+    assert cur is not None
+    data = cur.fetchall()
+    assert data == [
+        (
+            date.max,
+            datetime.max,
+            datetime.max,
+            date.min,
+            datetime.min,
+            datetime.min,
+        )
+    ]