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| 1 | +#!/usr/bin/env python3 |
| 2 | +""" |
| 3 | +Tests for SQLModel compatibility with psqlpy-sqlalchemy dialect |
| 4 | +""" |
| 5 | + |
| 6 | +import unittest |
| 7 | +from typing import Optional |
| 8 | + |
| 9 | +import pytest |
| 10 | +from sqlalchemy import create_engine |
| 11 | +from sqlmodel import Field, Session, SQLModel, select |
| 12 | + |
| 13 | + |
| 14 | +class Hero(SQLModel, table=True): |
| 15 | + """Test model for SQLModel compatibility tests""" |
| 16 | + |
| 17 | + id: Optional[int] = Field(default=None, primary_key=True) |
| 18 | + name: str |
| 19 | + secret_name: str |
| 20 | + age: Optional[int] = None |
| 21 | + |
| 22 | + |
| 23 | +class TestSQLModelCompatibility(unittest.TestCase): |
| 24 | + """Test cases for SQLModel compatibility with psqlpy-sqlalchemy dialect""" |
| 25 | + |
| 26 | + def setUp(self): |
| 27 | + """Set up test fixtures before each test method.""" |
| 28 | + # Create an in-memory SQLite database for testing |
| 29 | + # We use SQLite for testing as it doesn't require a running PostgreSQL server |
| 30 | + # The focus is on dialect compatibility with SQLModel, not PostgreSQL features |
| 31 | + self.engine = create_engine("sqlite:///:memory:") |
| 32 | + |
| 33 | + # Create all tables |
| 34 | + SQLModel.metadata.create_all(self.engine) |
| 35 | + |
| 36 | + # Add some test data |
| 37 | + with Session(self.engine) as session: |
| 38 | + session.add( |
| 39 | + Hero(name="Deadpond", secret_name="Dive Wilson", age=30) |
| 40 | + ) |
| 41 | + session.add( |
| 42 | + Hero(name="Spider-Boy", secret_name="Pedro Parqueador", age=16) |
| 43 | + ) |
| 44 | + session.add( |
| 45 | + Hero(name="Rusty-Man", secret_name="Tommy Sharp", age=48) |
| 46 | + ) |
| 47 | + session.commit() |
| 48 | + |
| 49 | + def tearDown(self): |
| 50 | + """Clean up after each test method.""" |
| 51 | + SQLModel.metadata.drop_all(self.engine) |
| 52 | + |
| 53 | + def test_sqlmodel_create_and_read(self): |
| 54 | + """Test creating and reading SQLModel objects""" |
| 55 | + # Create a new hero |
| 56 | + with Session(self.engine) as session: |
| 57 | + hero = Hero( |
| 58 | + name="Captain America", secret_name="Steve Rogers", age=100 |
| 59 | + ) |
| 60 | + session.add(hero) |
| 61 | + session.commit() |
| 62 | + session.refresh(hero) |
| 63 | + |
| 64 | + # Verify the hero was created with an ID |
| 65 | + self.assertIsNotNone(hero.id) |
| 66 | + |
| 67 | + # Read the hero back |
| 68 | + statement = select(Hero).where(Hero.name == "Captain America") |
| 69 | + result = session.exec(statement).first() |
| 70 | + |
| 71 | + # Verify the hero was read correctly |
| 72 | + self.assertIsNotNone(result) |
| 73 | + self.assertEqual(result.name, "Captain America") |
| 74 | + self.assertEqual(result.secret_name, "Steve Rogers") |
| 75 | + self.assertEqual(result.age, 100) |
| 76 | + |
| 77 | + def test_sqlmodel_update(self): |
| 78 | + """Test updating SQLModel objects""" |
| 79 | + with Session(self.engine) as session: |
| 80 | + # Find a hero to update |
| 81 | + statement = select(Hero).where(Hero.name == "Spider-Boy") |
| 82 | + hero = session.exec(statement).first() |
| 83 | + self.assertIsNotNone(hero) |
| 84 | + |
| 85 | + # Update the hero |
| 86 | + hero.age = 17 # Birthday! |
| 87 | + session.add(hero) |
| 88 | + session.commit() |
| 89 | + |
| 90 | + # Verify the update |
| 91 | + updated_hero = session.exec(statement).first() |
| 92 | + self.assertEqual(updated_hero.age, 17) |
| 93 | + |
| 94 | + def test_sqlmodel_delete(self): |
| 95 | + """Test deleting SQLModel objects""" |
| 96 | + |
| 97 | + with Session(self.engine) as session: |
| 98 | + # Count heroes before deletion |
| 99 | + statement = select(Hero) |
| 100 | + heroes_before = session.exec(statement).all() |
| 101 | + count_before = len(heroes_before) |
| 102 | + |
| 103 | + # Find and delete a hero |
| 104 | + statement = select(Hero).where(Hero.name == "Rusty-Man") |
| 105 | + hero = session.exec(statement).first() |
| 106 | + self.assertIsNotNone(hero) |
| 107 | + |
| 108 | + session.delete(hero) |
| 109 | + session.commit() |
| 110 | + |
| 111 | + # Verify the deletion |
| 112 | + statement = select(Hero) |
| 113 | + heroes_after = session.exec(statement).all() |
| 114 | + count_after = len(heroes_after) |
| 115 | + |
| 116 | + self.assertEqual(count_after, count_before - 1) |
| 117 | + |
| 118 | + statement = select(Hero).where(Hero.name == "Rusty-Man") |
| 119 | + deleted_hero = session.exec(statement).first() |
| 120 | + self.assertIsNone(deleted_hero) |
| 121 | + |
| 122 | + def test_sqlmodel_relationships(self): |
| 123 | + """Test SQLModel relationship handling""" |
| 124 | + |
| 125 | + class Team(SQLModel, table=True): |
| 126 | + id: Optional[int] = Field(default=None, primary_key=True) |
| 127 | + name: str |
| 128 | + headquarters: str |
| 129 | + |
| 130 | + class HeroWithTeam(SQLModel, table=True): |
| 131 | + id: Optional[int] = Field(default=None, primary_key=True) |
| 132 | + name: str |
| 133 | + secret_name: str |
| 134 | + age: Optional[int] = None |
| 135 | + team_id: Optional[int] = Field(default=None, foreign_key="team.id") |
| 136 | + |
| 137 | + # Create tables for these models |
| 138 | + Team.metadata.create_all(self.engine) |
| 139 | + HeroWithTeam.metadata.create_all(self.engine) |
| 140 | + |
| 141 | + # Test data with relationships |
| 142 | + with Session(self.engine) as session: |
| 143 | + # Create teams |
| 144 | + avengers = Team(name="Avengers", headquarters="New York") |
| 145 | + justice_league = Team( |
| 146 | + name="Justice League", headquarters="Washington" |
| 147 | + ) |
| 148 | + session.add(avengers) |
| 149 | + session.add(justice_league) |
| 150 | + session.commit() |
| 151 | + |
| 152 | + # Create heroes with team relationships |
| 153 | + hero1 = HeroWithTeam( |
| 154 | + name="Iron Man", |
| 155 | + secret_name="Tony Stark", |
| 156 | + age=45, |
| 157 | + team_id=avengers.id, |
| 158 | + ) |
| 159 | + hero2 = HeroWithTeam( |
| 160 | + name="Batman", |
| 161 | + secret_name="Bruce Wayne", |
| 162 | + age=40, |
| 163 | + team_id=justice_league.id, |
| 164 | + ) |
| 165 | + session.add(hero1) |
| 166 | + session.add(hero2) |
| 167 | + session.commit() |
| 168 | + |
| 169 | + # Query heroes with their teams |
| 170 | + statement = select(HeroWithTeam).where( |
| 171 | + HeroWithTeam.team_id == avengers.id |
| 172 | + ) |
| 173 | + avengers_heroes = session.exec(statement).all() |
| 174 | + |
| 175 | + self.assertEqual(len(avengers_heroes), 1) |
| 176 | + self.assertEqual(avengers_heroes[0].name, "Iron Man") |
| 177 | + |
| 178 | + # Clean up |
| 179 | + HeroWithTeam.metadata.drop_all(self.engine) |
| 180 | + Team.metadata.drop_all(self.engine) |
| 181 | + |
| 182 | + |
| 183 | +class TestPsqlpyDialectWithSQLModel(unittest.TestCase): |
| 184 | + """Test cases for psqlpy dialect with SQLModel""" |
| 185 | + |
| 186 | + @pytest.mark.skip("Requires a running PostgreSQL server") |
| 187 | + def test_psqlpy_dialect_with_sqlmodel(self): |
| 188 | + """Test using psqlpy dialect with SQLModel""" |
| 189 | + # This test requires a running PostgreSQL server |
| 190 | + # It's marked as skipped by default |
| 191 | + |
| 192 | + # Create engine with psqlpy dialect |
| 193 | + engine = create_engine( |
| 194 | + "postgresql+psqlpy://user:password@localhost/dbname" |
| 195 | + ) |
| 196 | + |
| 197 | + # Create all tables |
| 198 | + SQLModel.metadata.create_all(engine) |
| 199 | + |
| 200 | + # Test basic operations |
| 201 | + with Session(engine) as session: |
| 202 | + # Create |
| 203 | + hero = Hero( |
| 204 | + name="Black Widow", secret_name="Natasha Romanoff", age=35 |
| 205 | + ) |
| 206 | + session.add(hero) |
| 207 | + session.commit() |
| 208 | + session.refresh(hero) |
| 209 | + |
| 210 | + # Read |
| 211 | + statement = select(Hero).where(Hero.name == "Black Widow") |
| 212 | + result = session.exec(statement).first() |
| 213 | + |
| 214 | + # Verify |
| 215 | + assert result is not None |
| 216 | + assert result.name == "Black Widow" |
| 217 | + assert result.secret_name == "Natasha Romanoff" |
| 218 | + assert result.age == 35 |
| 219 | + |
| 220 | + # Clean up |
| 221 | + SQLModel.metadata.drop_all(engine) |
| 222 | + |
| 223 | + |
| 224 | +if __name__ == "__main__": |
| 225 | + unittest.main() |
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