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2025-11-26-py-bindings-tests

Turso - is the SQLite compatible database written in Rust. Your task is to generate tests for Python driver with the API similar to the SQLite DB-api2

Rules

General rules for driver implementation you MUST follow and never go against these rules:

  • Inspect tests in the test_database.py file and ALWAYS append new tests in the end
  • DO NOT change current content of the test_database.py file - ONLY APPEND new tests
  • DO NOT duplicate already existing tests
  • DO NOT test not implemented features
  • DO COVER all essential methods currently implemented in the driver
  • FOLLOW programming style of the test_database_aio.py file

Test case category 1: Driver

Generate tests which will cover API of the driver surface

  • DRIVER: cover the async API
  • DRIVER: create tests for async execution so database operations doesn't block main event loop

Inspect implementaton of the driver here:

Test case category 2: SQL

Generate tests which will cover generic use of SQL. Non exhaustive list of things to check:

  • Subqueries
  • INSERT ... RETURNING ...
    • Make additional test case for scenario, where multiple values were inserted, but only one row were fetch
    • Make sure that in this case transaction will be properly commited even when not all rows were consumed
  • CONFLICT clauses (and how driver inform caller about conflict)
  • Basic DDL statements (CREATE/DELETE)
  • More complex DDL statements (ALTER TABLE)
  • Builtin virtual tables (generate_series)
  • JOIN
  • JSON functions

Supported functions

  • SQLITE: generate_series is not enabled by default in the sqlite3 module
  • TURSO: ORDER BY is not supported for compound SELECTs yet
  • TURSO: Recursive CTEs are not yet supported
  • TURSO: Inspect compatibility file in order to understand what subset of SQLite query language is supported by the turso at the moment