Skip to main content

A pytest plugin for data-driven testing with YAML/JSON external data files

Project description

pytest-datadriver

一个 pytest 插件,支持通过 YAML/JSON 外部数据文件实现数据驱动测试。

特性

  • 多格式支持:YAML 和 JSON 外部数据文件,可扩展架构
  • 零侵入:无需修改现有测试代码,通过 CLI 参数可选激活
  • 参数自动提取:基于 AST 静态分析,从现有测试代码提取 parametrize 参数并导出
  • 双模式覆盖:智能覆盖(按 case_no 匹配)和完全替换模式
  • 两种数据布局:case-first 和 function-first
  • fixture 支持:自动识别 fixture 参数与 parametrize 参数

安装

pip install pytest-datadriver

或从源码安装:

git clone <repo-url>
cd cib-pytest-datadriver
pip install -e .

快速开始

1. 在测试代码中添加标记

import pytest

@pytest.mark.caseNo("TC-001")
@pytest.mark.caseName("加法测试")
@pytest.mark.parametrize("a,b,expected", [
    (1, 2, 3),
    (5, 10, 15),
])
def test_addition(a, b, expected):
    assert a + b == expected

2. 提取参数到数据文件

提取/导出数据文件现已由独立的 datadriver CLI 执行,不再依赖 pytest:

# 基本提取(默认导出为 TestData/data.yaml)
datadriver extract --data-output TestData/data.yaml --test-path tests/

# 导出为 JSON,使用 function-first 布局
datadriver extract --data-output TestData/data.json --data-format json --data-layout func --test-path tests/

# 只导出带 @pytest.mark.caseNo 标记的用例
datadriver extract --data-output TestData/data.yaml --data-export-filter case-only --test-path tests/

3. 使用数据文件运行测试

# 智能覆盖(默认):按 case_no 匹配覆盖参数
pytest tests/ --data-file TestData/data.yaml --data-mode smart

# 完全替换:只执行文件中的用例
pytest tests/ --data-file TestData/data.yaml --data-mode replace

CLI 参数

pytest 运行参数(由插件注册)

参数 说明 可选值 默认值
--data-file 数据文件路径 - 自动查找 TestData/data.yaml
--data-mode 覆盖模式 smart, replace smart
--data-layout 数据布局 case, func case
--data-format 数据格式 yaml, json, auto auto
--data-module-match 模块匹配策略 fullpath, filename fullpath

datadriver extract 独立 CLI 参数

参数 说明 可选值 默认值
--data-output 提取输出路径 - TestData/data.yaml
--data-layout 数据布局 case, func case
--data-format 数据格式 yaml, json, auto auto
--data-export-format 导出详情级别 simple, full simple
--data-export-filter 导出过滤 all, case-only all
--data-module-match 模块匹配策略 fullpath, filename fullpath
--test-path 提取扫描目录 - tests/

数据文件格式

case-first 布局(默认)

TC-001:
  case_name: "加法测试"
  module: "tests/test_math.py"
  function: "test_addition"
  params:
    a: 1
    b: 2
    expected: 3

function-first 布局

"tests/test_math.py::test_addition":
  - case_no: "TC-001"
    case_name: "加法测试"
    params:
      a: 1
      b: 2
      expected: 3

依赖

  • Python >= 3.9
  • pytest >= 7.0
  • pyyaml >= 6.0

打包与发布

本地打包

# 安装构建工具
pip install build twine

# 构建分发包(sdist + wheel)
python -m build

# 构建产物位于 dist/ 目录:
# dist/pytest_datadriver-0.1.0.tar.gz
# dist/pytest_datadriver-0.1.0-py3-none-any.whl

上传到 PyPI

# 上传到 PyPI(需先配置 ~/.pypirc 或使用 Token)
twine upload dist/*

# 上传到 Test PyPI(预发布验证)
twine upload --repository testpypi dist/*

上传到私有制品库

# 上传到私有 PyPI 仓库(需在 ~/.pypirc 中配置仓库地址)
twine upload --repository <your-repo-name> dist/*

# 示例:上传到腾讯云软件源
twine upload --repository-url https://mirrors.tencent.com/repository/pypi/tencent_pypi/simple dist/*

从制品库安装

# 从 PyPI 安装
pip install pytest-datadriver

# 从私有制品库安装
pip install pytest-datadriver -i https://mirrors.tencent.com/repository/pypi/tencent_pypi/simple --trusted-host mirrors.tencent.com

~/.pypirc 配置示例

[distutils]
index-servers =
    pypi
    tencent

[pypi]
username = __token__
password = pypi-xxxxxxxxxxxx

[tencent]
repository = https://mirrors.tencent.com/repository/pypi/tencent_pypi/simple
username = <your-username>
password = <your-password>

许可证

MIT

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

pytest_datadriver-0.1.2.tar.gz (24.2 kB view details)

Uploaded Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

pytest_datadriver-0.1.2-py3-none-any.whl (23.3 kB view details)

Uploaded Python 3

File details

Details for the file pytest_datadriver-0.1.2.tar.gz.

File metadata

  • Download URL: pytest_datadriver-0.1.2.tar.gz
  • Upload date:
  • Size: 24.2 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.14.0

File hashes

Hashes for pytest_datadriver-0.1.2.tar.gz
Algorithm Hash digest
SHA256 26be654053df1e1ba97e5a3828978588461bf298ea1f7235172482ae666a1c56
MD5 5e924e4f5c3b20855c59adea09242c2f
BLAKE2b-256 090eb4924306bc22afde93b82a599c8b3852a2614710ea45625fec2ff9fffdbc

See more details on using hashes here.

File details

Details for the file pytest_datadriver-0.1.2-py3-none-any.whl.

File metadata

File hashes

Hashes for pytest_datadriver-0.1.2-py3-none-any.whl
Algorithm Hash digest
SHA256 6eddf1cff19db28bd1b9924942be86eab6833578d35bf3e770c0685a8740def1
MD5 af6ac36db5a446ae0d984d3273ff4a4f
BLAKE2b-256 17354fb67b590b4f06deb26e8f64136b837e58cdba32ca2ba8d6cf05fa3bdb8b

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Depot Continuous Integration Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page