前言
之前一篇文章pytest的一些高阶用法记录了一些高阶的用法，这边继续实践一些操作
1.报告 pytest-html
这是一版简单的html报告
安装命令
pip install pytest-html
执行脚本的时候，带上需要保存报告的地址和报告名称即可
pytest demo_fixture.py --html=./../report/report.html
这边会在脚本的上级目录，report文件夹中，生成一个html报告，报告内容如下：
report.png
report2.png
2.指定运行用例
可以看到 报告中Test这一列，出现 demo_fixture.py::Test1::()::test_1 这种格式，这其实就是pytest指定运行部分用例的方法，可以试验一下
import pytest
@pytest.fixture(scope="class",autouse=True)
def preclass():
print("beore class ")
yield
print("after class")
@pytest.fixture(scope="module",autouse=True)
def premodule():
print("beore module ")
yield
print("after module")
@pytest.fixture(scope="function",autouse=True)
def pretest():
print("beore function ")
yield
print("after function")
class Test1(object):
def test_1(self):
print("this is test1")
assert 1==1
def test_2(self):
print("this is test2")
assert 1+2 ==3
class Test2(object):
def test_3(self):
print("this is test3")
assert 3+1 ==4
def test_4(self):
print("this is test4")
assert 3+2 ==5
如果我们想只执行Test1 的测试用例，那么执行命令：
pytest -sq demo_fixture_decorator.py::Test1
其结果如下：
Test1.png
如果只想执行Test2中的test_3,那么命令如下：
pytest -sq demo_fixture_decorator.py::Test2::test_3
其结果如下：
test_3.png
仅执行了test_3
同时也支持多个条件，如下：
pytest -sq demo_fixture_decorator.py::Test2::test_3 demo_fixture_decorator.py::Test1
3.conftest
conftest.py 定一个共享的fixture（备注：文件名固定为conftest.py 不可以修改）
一般放在testcase目录中，每个子目录下也可以有conftest.py，优先子目录中的conftest.py中fixture
定一个conftest.py如下：
import pytest
@pytest.fixture(scope="session",autouse="True")
def before():
print("this is conftest")
当我们再次执行
pytest -sq demo_fixture_decorator.py::Test2::test_3
其结果如下：
conftest.png
对比可以发现，test_3 执行前，先执行了conftest中的代码
4.mark
pytest支持自定义一些标签，在执行脚本的时候，执行指定某些标签或者非某些标签的用例
首先查看pytest 自带的markers
pytest --markers
@pytest.mark.no_cover: disable coverage for this test.
@pytest.mark.run: specify ordering information for when tests should run in relation to one another. Provided by pytest-ordering. See
also: http://pytest-ordering.readthedocs.org/
@pytest.mark.flaky(reruns=1, reruns_delay=0): mark test to re-run up to 'reruns' times. Add a delay of 'reruns_delay' seconds between
re-runs.
.
.
.
.
@pytest.mark.parametrize(argnames, argvalues): call a test function multiple times passing in different arguments in turn.
@pytest.mark.usefixtures(fixturename1, fixturename2, ...): mark tests as needing all of the specified fixtures. see https://docs.pyte
st.org/en/latest/fixture.html#usefixtures
@pytest.mark.tryfirst: mark a hook implementation function such that the plugin machinery will try to call it first/as early as possi
ble.
@pytest.mark.trylast: mark a hook implementation function such that the plugin machinery will try to call it last/as late as possible
.
可以看到之前提到的一些,如：
参数化用的
@pytest.mark.parametrize
fixture用的
@pytest.mark.usefixtures
失败重跑用的
@pytest.mark.flaky(reruns=1, reruns_delay=0)
等等
我们可以自定义写mark
新增pytest.ini，内容如下：
[pytest]
markers=
P0: level P0
P1: level p1
P2: level p2
dong: testcase created by dong
mandy: testcase created by mandy
cm: testcase about cm
pd: testcase about pd
再次执行
pytest --markers
@pytest.mark.P0: level P0
@pytest.mark.P1: level p1
@pytest.mark.P2: level p2
@pytest.mark.dong: testcase created by dong
@pytest.mark.mandy: testcase created by mandy
@pytest.mark.cm: testcase about cm
@pytest.mark.pd: testcase about pd
@pytest.mark.no_cover: disable coverage for this test.
@pytest.mark.run: specify ordering information for when tests should run in relation to one another. Provided by pytest-ordering. See
also: http://pytest-ordering.readthedocs.org/
@pytest.mark.flaky(reruns=1, reruns_delay=0): mark test to re-run up to 'reruns' times. Add a delay of 'reruns_delay' seconds between
re-runs.
.
.
.
之前自定义的标签，已经加入了
那么如何使用这些标签呢？
import pytest
@pytest.mark.dong
@pytest.mark.P1
@pytest.mark.cm
class Test1(object):
def test_1(self):
print("this is test1")
assert 1==1
@pytest.mark.P0
def test_2(selfs):
print("this is test2")
assert 1+2 ==3
@pytest.mark.mandy
@pytest.mark.P0
class Test2(object):
def test_3(self):
print("this is test3")
assert 3+1 ==4
可以看到在脚本中加上了我们自定义的标签，如果向指定执行部分标签的用例执行方法：
pytest -sq -m "P0" demo_mark.py ---仅执行P0级的用例
结果如下,和预期的一致，仅运行P0级的用例
P0
同时也支持一些逻辑
pytest -sq -m "P0 and cm" demo_mark.py ---运行cm模块的P0级用例
预期结果：仅运行 test_2
P0 and cm.png
这一段，可以参考官网文档.
也可以根据用例名称进行筛选 -k
pytest -sq -k 2 demo_mark.py
预期只会执行 名字中包含2 的用例，即执行 test_2 和 Test2
image.png
示例代码，参考github
