pytest.mark.parametrize , 参数化测试函数
# content of test_expectation.py
import pytest
@pytest.mark.parametrize("test_input,expected", [("3+5", 8), ("2+4", 6), ("6*9", 42)])
def test_eval(test_input, expected):
assert eval(test_input) == expected
类参数化
import pytest
@pytest.mark.parametrize("n,expected", [(1, 2), (3, 4)])
class TestClass:
def test_simple_case(self, n, expected):
assert n + 1 == expected
def test_weird_simple_case(self, n, expected):
assert (n * 1) + 1 == expected
模块参数化
- pytestmark是全局环境变量，详情见
import pytest pytestmark = pytest.mark.parametrize("n,expected", [(1, 2), (3, 4)]) class TestClass: def test_simple_case(self, n, expected): assert n + 1 == expected def test_weird_simple_case(self, n, expected): assert (n * 1) + 1 == expected class TestClass2: def test_simple_case(self, n, expected): assert n + 1 == expected def test_weird_simple_case(self, n, expected): assert (n * 1) + 1 == expected
需要多个参数化组合，可以堆叠parametrize装饰器
import pytest
@pytest.mark.parametrize("x", [0, 1])
@pytest.mark.parametrize("y", [2, 3])
def test_foo(x, y):
pass
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