Organizing your scenarios and mark

推荐的组织方式

存放 feature 的方式

features
│
├──frontend
│  │
│  └──auth
│     │
│     └──login.feature
└──backend
   │
   └──auth
      │
      └──login.feature

存放测试文件的方式

tests
│
└──functional
   │
   └──test_auth.py
      │
      └ """Authentication tests."""
        from pytest_bdd import scenario
        @scenario('frontend/auth/login.feature')
        def test_logging_in_frontend():
            pass
        @scenario('backend/auth/login.feature')
        def test_logging_in_backend():
            pass

灵魂拷问

• 如何指定运行哪些 features 或者 scenarios 呢？
• 使用标记，和 @pytest.mark 差不多的原理

标记 🌰

mark.feature

# 给 Feature 标记
@article
Feature: Resource owner
    # 给 Scenario 标记
    @author
    Scenario: I'm the author
        Given I'm an author
        And I have an article
    @admin
    Scenario: I'm the admin
        Given I'm the admin
        And there's an article

test_mark.py

from pytest_bdd import given, scenarios
# scenario
scenarios('mark.feature')
@given("I'm an author", target_fixture="author")
def author():
    print("I'm an author")
    return dict(username="polo")
@given("I'm the admin", target_fixture="author")
def admin():
    print("I'm an admin")
    return dict(username="admin")
@given("I have an article")
@given("there's an article")
def article(author):
    print("two given")
    return author

命令行运行

# 选择 Feature 级别的标记
pytest -m "article"
# 选择 Scenario 级别的标记
pytest -m "author"
# 多个 Scenario 级别的标记
pytest -m "author or admin"
# Feature + Scenario
pytest -m "article and admin"

hook

可以通过实现 pytest_bdd_apply_tag 钩子并从中返回 True 来自定义标签如何转换为 pytest 标记

在测试用例目录下创建 conftest.py

添加以下代码

import pytest
def pytest_bdd_apply_tag(tag, function):
    if tag == 'article':
        print(function)
        marker = pytest.mark.skip(reason="Not implemented yet")
        marker(function)
        return True
    else:
        return False

再次命令行运行

pytest -sq -m "article"

运行结果

<function _get_scenario_decorator.<locals>.decorator.<locals>.scenario_wrapper at 0x10b1d1750>
<function _get_scenario_decorator.<locals>.decorator.<locals>.scenario_wrapper at 0x10b1d1870>
15 deselected in 0.02s

刚刚会运行的两条测试用例这次不会运行了，因为通过 hook 标记为 skip