codekingpro/portable-devtools

1# testing/suite/test_update_delete.py
2# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
3# <see AUTHORS file>
4#
5# This module is part of SQLAlchemy and is released under
6# the MIT License: https://www.opensource.org/licenses/mit-license.php
7# mypy: ignore-errors
8
9from .. import fixtures
10from ..assertions import eq_
11from ..schema import Column
12from ..schema import Table
13from ... import Integer
14from ... import String
15from ... import testing
16
17
18class SimpleUpdateDeleteTest(fixtures.TablesTest):
19    run_deletes = "each"
20    __requires__ = ("sane_rowcount",)
21    __sparse_driver_backend__ = True
22
23    @classmethod
24    def define_tables(cls, metadata):
25        Table(
26            "plain_pk",
27            metadata,
28            Column("id", Integer, primary_key=True),
29            Column("data", String(50)),
30        )
31
32    @classmethod
33    def insert_data(cls, connection):
34        connection.execute(
35            cls.tables.plain_pk.insert(),
36            [
37                {"id": 1, "data": "d1"},
38                {"id": 2, "data": "d2"},
39                {"id": 3, "data": "d3"},
40            ],
41        )
42
43    def test_update(self, connection):
44        t = self.tables.plain_pk
45        r = connection.execute(
46            t.update().where(t.c.id == 2), dict(data="d2_new")
47        )
48        assert not r.is_insert
49        assert not r.returns_rows
50        assert r.rowcount == 1
51
52        eq_(
53            connection.execute(t.select().order_by(t.c.id)).fetchall(),
54            [(1, "d1"), (2, "d2_new"), (3, "d3")],
55        )
56
57    def test_delete(self, connection):
58        t = self.tables.plain_pk
59        r = connection.execute(t.delete().where(t.c.id == 2))
60        assert not r.is_insert
61        assert not r.returns_rows
62        assert r.rowcount == 1
63        eq_(
64            connection.execute(t.select().order_by(t.c.id)).fetchall(),
65            [(1, "d1"), (3, "d3")],
66        )
67
68    @testing.variation("criteria", ["rows", "norows", "emptyin"])
69    @testing.requires.update_returning
70    def test_update_returning(self, connection, criteria):
71        t = self.tables.plain_pk
72
73        stmt = t.update().returning(t.c.id, t.c.data)
74
75        if criteria.norows:
76            stmt = stmt.where(t.c.id == 10)
77        elif criteria.rows:
78            stmt = stmt.where(t.c.id == 2)
79        elif criteria.emptyin:
80            stmt = stmt.where(t.c.id.in_([]))
81        else:
82            criteria.fail()
83
84        r = connection.execute(stmt, dict(data="d2_new"))
85        assert not r.is_insert
86        assert r.returns_rows
87        eq_(r.keys(), ["id", "data"])
88
89        if criteria.rows:
90            eq_(r.all(), [(2, "d2_new")])
91        else:
92            eq_(r.all(), [])
93
94        eq_(
95            connection.execute(t.select().order_by(t.c.id)).fetchall(),
96            (
97                [(1, "d1"), (2, "d2_new"), (3, "d3")]
98                if criteria.rows
99                else [(1, "d1"), (2, "d2"), (3, "d3")]
100            ),
101        )
102
103    @testing.variation("criteria", ["rows", "norows", "emptyin"])
104    @testing.requires.delete_returning
105    def test_delete_returning(self, connection, criteria):
106        t = self.tables.plain_pk
107
108        stmt = t.delete().returning(t.c.id, t.c.data)
109
110        if criteria.norows:
111            stmt = stmt.where(t.c.id == 10)
112        elif criteria.rows:
113            stmt = stmt.where(t.c.id == 2)
114        elif criteria.emptyin:
115            stmt = stmt.where(t.c.id.in_([]))
116        else:
117            criteria.fail()
118
119        r = connection.execute(stmt)
120        assert not r.is_insert
121        assert r.returns_rows
122        eq_(r.keys(), ["id", "data"])
123
124        if criteria.rows:
125            eq_(r.all(), [(2, "d2")])
126        else:
127            eq_(r.all(), [])
128
129        eq_(
130            connection.execute(t.select().order_by(t.c.id)).fetchall(),
131            (
132                [(1, "d1"), (3, "d3")]
133                if criteria.rows
134                else [(1, "d1"), (2, "d2"), (3, "d3")]
135            ),
136        )
137
138
139__all__ = ("SimpleUpdateDeleteTest",)
140