我希望能够设置范围以能够配置是否为每个功能运行夹具或为其中许多功能运行一次。
但是我看到我可以在fixture
装饰器上设置范围:
import pytest
@pytest.fixture(scope="function")
def fixt(request):
return request.param * 3
@pytest.mark.parametrize("fixt", ["a", "b"], indirect=True)
def test_indirect(fixt):
assert len(fixt) == 3
或者在parametrize
装饰器上:
import pytest
@pytest.fixture
def fixt(request):
return request.param * 3
@pytest.mark.parametrize("fixt", ["a", "b"], indirect=True, scope="function")
def test_indirect(fixt):
assert len(fixt) == 3
甚至两者同时:
import pytest
@pytest.fixture(scope="function")
def fixt(request):
return request.param * 3
@pytest.mark.parametrize("fixt", ["a", "b"], indirect=True, scope="function")
def test_indirect(fixt):
assert len(fixt) == 3
有什么区别,什么时候应该设置每个?
更新:
我测试了每一个,看看它们有什么不同。
我用于测试的代码:
import pytest
scope_fixture="function"
scope_parametrize="module"
with open('scope_log.txt', 'a') as file:
file.write(f'--------\n')
file.write(f'{scope_fixture=}\n')
file.write(f'{scope_parametrize=}\n')
@pytest.fixture(scope=scope_fixture)
def fixt(request):
with open('scope_log.txt', 'a') as file:
file.write(f'fixture ' + str(request.param)+'\n')
return request.param * 3
@pytest.mark.parametrize("fixt", ["a", "b"], indirect=True, scope=scope_parametrize)
def test_indirect1(fixt):
with open('scope_log.txt', 'a') as file:
file.write(f'1 ' + str(fixt)+'\n')
assert len(fixt) == 3
@pytest.mark.parametrize("fixt", ["a", "b"], indirect=True, scope=scope_parametrize)
def test_indirect2(fixt):
with open('scope_log.txt', 'a') as file:
file.write(f'2 ' + str(fixt)+'\n')
assert len(fixt) == 3
结果:
scope_fixture=None
scope_parametrize=None
fixture a
1 aaa
fixture b
1 bbb
fixture a
2 aaa
fixture b
2 bbb
--------
scope_fixture='function'
scope_parametrize=None
fixture a
1 aaa
fixture b
1 bbb
fixture a
2 aaa
fixture b
2 bbb
--------
scope_fixture='module'
scope_parametrize=None
fixture a
1 aaa
2 aaa
fixture b
1 bbb
2 bbb
--------
scope_fixture=None
scope_parametrize='function'
fixture a
1 aaa
fixture b
1 bbb
fixture a
2 aaa
fixture b
2 bbb
--------
scope_fixture=None
scope_parametrize='module'
fixture a
1 aaa
2 aaa
fixture b
1 bbb
2 bbb
--------
scope_fixture='function'
scope_parametrize='module'
fixture a
1 aaa
2 aaa
fixture b
1 bbb
2 bbb
--------
scope_fixture='module'
scope_parametrize='module'
fixture a
1 aaa
2 aaa
fixture b
1 bbb
2 bbb
--------
scope_fixture='module'
scope_parametrize='function'
fixture a
1 aaa
fixture b
1 bbb
fixture a
2 aaa
fixture b
2 bbb
--------
scope_fixture='function'
scope_parametrize='function'
fixture a
1 aaa
fixture b
1 bbb
fixture a
2 aaa
fixture b
2 bbb