pytest特性

1. 很多第三方扩展插件可以直接使用,pytest-selenium, pytest-xdist, pytest-html...

2. 装饰器fixture:可以将函数作为参数使用

3. 多种方法实现参数化

4. 装饰器mark: 测试case分类

5. conftest:数据共享

问题

1. 使用pycharm,test文件和page文件分别在不同的目录下(testCases-test_sanity.py, pageObjects-hote_search_results_page.py),test文件引用page文件import pageObjects.hotel_search_Results_page.py,运行pytest的时候总是提示找不到pageObjects

  • 方法一,在import之前添加两句#

    import sys
    sys.path.append("E:\python_expedia") //项目根路径

  • 方法二,运行执行case的命令前,先运行set PYTHONPATH=E:\python_expedia

总结

pytest测试数据参数化的方法

1. 使用@pytest.fixture(), 测试数据与测试case在同一个文件




pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值

pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值_02

# practice_is_leap_year1.py

def is_leap_year(year):
    if isinstance(year, int) is not True:
        raise TypeError("year is not int")
    elif year == 0:
        raise ValueError("year shouldn't be 0")
    elif abs(year) != year:
        raise ValueError("year should be positiye number")
    elif(year%4 == 0 and year%100 !=0 or year%400 ==0):
        print("%d is leaf year" % year)
        return True
    else:
        return False


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pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值

pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值_02

# practice_is_leap_year2.py

import pytest
import practice_is_leap_year1

is_leap = [4, 40, 400, 800, 1996, 2996]
is_not_leap = [1, 100, 500, 1000, 1999, 3000]
is_valueerror = [0, -4, -100]
is_typeerror = ['-4', 'ins']

@pytest.fixture(params=is_leap)
def is_leap(request):
    return request.param
@pytest.fixture(params=is_typeerror)
def is_typeerror(request):
    return request.param

def test_is_leap(is_leap):
    assert practice_is_leap_year1.is_leap_year(is_leap) == True

def test_is_typeerror(is_typeerror):
    with pytest.raises(TypeError):
        practice_is_leap_year1.is_leap_year(is_typeerror)


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2. 使用conftest.py文件,是测试数据与测试case分离




pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值

pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值_02

# conftest.py

is_leap = [4, 40, 400, 800, 1996, 2996]
is_not_leap = [1, 100, 500, 1000, 1999, 3000]
is_valueerror = [0, -4, -100]
is_typeerror = ['-4', 'ins']
@pytest.fixture(params=is_leap)
def is_leap_conftest(request):
    return request.param
@pytest.fixture(params=is_typeerror)
def is_typeerror_conftest(request):
    return request.param


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pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值

pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值_02

# practice_is_leap_year3.py

import pytest
import practice_is_leap_year1

class TestData:

    def test_is_leap(self, is_leap_conftest):
        assert practice_is_leap_year1.is_leap_year(is_leap_conftest) == True

    def test_is_typeerror(self, is_typeerror_conftest):
        with pytest.raises(TypeError):
            practice_is_leap_year1.is_leap_year(is_typeerror_conftest)


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 3. 使用@pytest.mark.parametrize(),可以让同一条case用不同的测试数据跑多次




pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值

pytest的jsonpath怎么取值 pytest pageobject_pytest的jsonpath怎么取值_02

# practice_is_leap_year4.py
import pytest
import practice_is_leap_year1

@pytest.mark.parametrize('year, expected', ([1, False], [1996, True]))
def test_is_leap(self, year, expected):
    assert practice_is_leap_year1.is_leap_year(year) == expected


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pytest并行运行测试

使用插件pytest-xdist

1. pip install pytest-xdist

2. 执行case时命令行参数:

  • -n 并行数量

pytest生成html测试报告

使用插件pytest-html

case报错的时候自带网页截屏

1. pip install pytest-html

2. 执行case时命令行参数 pytest --html=report.html (=后面可以指定具体报告生成路径)

3. 上面生成的报告,css是独立的,分享报告的时候样式会丢失,为了更好的分享发邮件展示报告,可以把css样式合并到html里  pytest --html=report.html --self-contained-html

pytest测试case失败重复执行

使用插件pytest-rerunfailures: pip install pytest-rerunfailures

1. running过程中:rerun所有的失败的case,执行case时命令行参数 pytest --reruns 2

2. running过程中:rerun单个case,case方法添加@pytest.mark.flaky(reruns=2)

3. running结束后,rerun所有刚刚失败的case "--lf"

 

pytest自定义case执行顺序

note: 一般情况下,case都是按照文件中的顺序执行的,但是有发现一种情况不会按照顺序执行:比如第1,3,4条case都有使用同一个conftest中的set up,但是第2个没用,那第二个case会在最后执行

使用插件pytest-ordering: pip install pytest-ordering

@pytest.mark.run(order=6)

pytest获取自定义的命令行参数

使用pytest内置的fixture:pytestconfig



# conffigtest.py
# pytest hook in configtest.py to add custom command line argument(固定写法)
def pytest_addoption(parser):
    parser.addoption("--myopt", action="store_true", help="some boolean option")
    parser.addoption("--foo", action="store", default="bar", help="fop:bar or baz")
    parser.addoption("--nice", action="store_true", help="nice: turn failures into opportunities")

# actions 有一组固定的值可供选择,默认是’store ‘,表示将命令行参数值保存在 options 对象里,可以获取参数的值并使用
# store 也有其它的两种形式: store_true 和 store_false ,用于处理带命令行参数后面不带值的情况。如果是store_true则赋值为true,如果是store_false则赋值为false



# test_command_line_params.py

def test_option(pytestconfig):
    print('"foo" set to:', pytestconfig.getoption('foo'))
    print('"myopt" set to', pytestconfig.getoption('myopt'))



命令行输入:pytest -s --myopt --foo=baz d_pytest_fixture_pytestconfig.py

输出: "foo" set to: baz    "myopt" set to true