Rewrite test suite from unittest to pytest

- Replace unittest.TestCase with pytest-style test classes
- Add conftest.py with fixtures for Tarantool instances and connections
- Convert ensure_version from inline function to decorator
- Add min_bin_version marker for binary version checks at collection time
- Move assertions to tests/utils/assertions.py
- Remove _testbase.py (replaced by conftest.py fixtures)
- Update all test files to use pytest fixtures and decorators

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: igorcoding

asynctnt/instance.py

@@ -768,6 +768,7 @@ def __init__(
         wal_mode="none",
         initlua_template=None,
         applua="-- app.lua --",
+        extra_box_cfg="",
         timeout=10.0,
     ):
         super().__init__(
@@ -786,6 +787,7 @@ def __init__(
             cleanup=True,
             initlua_template=initlua_template,
             applua=applua,
+            extra_box_cfg=extra_box_cfg,
             timeout=timeout,
         )
         self._docker_image = docker_image or "tarantool/tarantool"

pyproject.toml

@@ -28,7 +28,7 @@ classifiers=[
 requires-python = '>=3.9.0'
 readme = "README.md"
 dependencies = [
-    'PyYAML >= 5.0',
+    "ruff>=0.14.13",
 ]
 
 [project.urls]
@@ -38,7 +38,8 @@ github = "https://github.com/igorcoding/asynctnt"
 test = [
     'ruff',
     'uvloop>=0.12.3; platform_system != "Windows" and platform.python_implementation != "PyPy"',
-    'pytest',
+    'pytest>=8.0.0',
+    'pytest-asyncio>=0.24.0',
     'pytest-cov',
     'coverage[toml]',
     'pytz',
@@ -72,9 +73,16 @@ include = ["asynctnt", "asynctnt.*"]
 "*" = ["*.c", "*.h"]
 
 [tool.pytest.ini_options]
-addopts = "--strict --tb native"
+addopts = "--strict-markers --tb native"
 testpaths = "tests"
 filterwarnings = "default"
+asyncio_mode = "auto"
+asyncio_default_fixture_loop_scope = "function"
+markers = [
+    "min_version(version): skip if Tarantool version < specified",
+    "max_version(version): skip if Tarantool version >= specified",
+    "min_bin_version(version): skip based on binary version",
+]
 
 [tool.coverage.run]
 branch = true

tests/__init__.py

@@ -1,38 +1 @@
-import logging
-import os
-import sys
-import unittest
-
-from ._testbase import TarantoolTestCase
-
-CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
-
-
-class BaseTarantoolTestCase(TarantoolTestCase):
-    DO_CONNECT = True
-    LOGGING_LEVEL = getattr(logging, os.getenv("LOG", "CRITICAL").upper())
-    LOGGING_STREAM = sys.stdout
-    TNT_APP_LUA_PATH = os.path.join(CURRENT_DIR, "files", "app.lua")
-
-    TESTER_SPACE_ID = 512
-    TESTER_SPACE_NAME = "tester"
-
-    async def truncate(self):
-        if self.conn and self.conn.is_connected:
-            await self.conn.call("truncate", timeout=5)
-
-    def tearDown(self):
-        if hasattr(self, "conn"):
-            self.loop.run_until_complete(self.truncate())
-        super().tearDown()
-
-
-def suite():
-    loader = unittest.TestLoader()
-    return loader.discover(CURRENT_DIR, pattern="test_*.py")
-
-
-if __name__ == "__main__":
-    runner = unittest.TextTestRunner(verbosity=2)
-    result = runner.run(suite())
-    sys.exit(not result.wasSuccessful())
+"""Asynctnt test suite."""