import com.google.common.collect.ObjectArrays;
import com.google.common.collect.testing.ListTestSuiteBuilder;
import com.google.common.collect.testing.SampleElements;
import com.google.common.collect.testing.TestListGenerator;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.testing.EqualsTester;
import java.util.ArrayList;
import java.util.Arrays;

import importlib
import os
from pathlib import Path

import pytest

from ...utils import needs_pydanticv1


# TODO: pv2 add version with Pydantic v2
@needs_pydanticv1
def test_testing_dbs(tmp_path_factory: pytest.TempPathFactory):
    tmp_path = tmp_path_factory.mktemp("data")
    cwd = os.getcwd()
    os.chdir(tmp_path)
    test_db = Path("./test.db")
    if test_db.is_file():  # pragma: nocover
        test_db.unlink()

# 测试数据库

您还可以使用[测试依赖项](testing-dependencies.md){.internal-link target=_blank}中的覆盖依赖项方法变更测试的数据库。

实现设置其它测试数据库、在测试后回滚数据、或预填测试数据等操作。

本章的主要思路与上一章完全相同。

## 为 SQL 应用添加测试

为了使用测试数据库，我们要升级 [SQL 关系型数据库](../tutorial/sql-databases.md){.internal-link target=_blank} 一章中的示例。

应用的所有代码都一样，直接查看那一章的示例代码即可。

本章只是新添加了测试文件。

正常的依赖项 `get_db()` 返回数据库会话。

测试时使用覆盖依赖项返回自定义数据库会话代替正常的依赖项。

本例中，要创建仅用于测试的临时数据库。

## 文件架构

- Support pod priority based node graceful shutdown (#102915, @wzshiming) [SIG Node and Testing]

### Feature

- CRI v1 is now the project default. If a container runtime does not support the v1 API, Kubernetes will fall back to the v1alpha2 implementation. (#106501, @ehashman) [SIG Network, Node and Testing]

### Bug or Regression

- Kubernetes is now built with Golang 1.18.2 ([#110043](https://github.com/kubernetes/kubernetes/pull/110043), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]
- Kubernetes is now built with Golang 1.18.3 ([#110421](https://github.com/kubernetes/kubernetes/pull/110421), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]

import com.google.common.collect.ObjectArrays;
import com.google.common.collect.testing.ListTestSuiteBuilder;
import com.google.common.collect.testing.SampleElements;
import com.google.common.collect.testing.TestListGenerator;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.testing.EqualsTester;
import java.util.ArrayList;
import java.util.Arrays;

import com.google.common.collect.ObjectArrays;
import com.google.common.collect.testing.ListTestSuiteBuilder;
import com.google.common.collect.testing.SampleElements;
import com.google.common.collect.testing.TestListGenerator;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.testing.EqualsTester;
import java.util.ArrayList;
import java.util.Arrays;

import importlib
import os
from pathlib import Path

import pytest

from ...utils import needs_py310, needs_pydanticv1


@needs_py310
# TODO: pv2 add version with Pydantic v2
@needs_pydanticv1
def test_testing_dbs_py39(tmp_path_factory: pytest.TempPathFactory):
    tmp_path = tmp_path_factory.mktemp("data")
    cwd = os.getcwd()
    os.chdir(tmp_path)
    test_db = Path("./test.db")
    if test_db.is_file():  # pragma: nocover

- No ([#108432](https://github.com/kubernetes/kubernetes/pull/108432), [@iXinqi](https://github.com/iXinqi)) [SIG Testing and Windows]
- PreFilter extension in the scheduler framework now returns not only status but also PreFilterResult ([#108648](https://github.com/kubernetes/kubernetes/pull/108648), [@ahg-g](https://github.com/ahg-g)) [SIG Scheduling, Storage and Testing]

import importlib
import os
from pathlib import Path

import pytest

from ...utils import needs_py39, needs_pydanticv1


@needs_py39
# TODO: pv2 add version with Pydantic v2
@needs_pydanticv1
def test_testing_dbs_py39(tmp_path_factory: pytest.TempPathFactory):
    tmp_path = tmp_path_factory.mktemp("data")
    cwd = os.getcwd()
    os.chdir(tmp_path)
    test_db = Path("./test.db")
    if test_db.is_file():  # pragma: nocover