pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pytest-rerunfailures

pytest -s testcases/test_rerun.py --reruns 5

pytest -s testcases/test_rerun.py --reruns 5 --reruns-delay 1

graph LR
    A[首次失敗] --> B{是否可重跑？}
    B -->|是| C[自動重試]
    B -->|否| D[標(biāo)記失敗]
    C --> E{重試成功？}
    E -->|是| F[報(bào)告成功]
    E -->|否| D

# test_payment.py
import pytest
import random

def test_payment_status():
    """ 模擬第三方支付接口的不穩(wěn)定響應(yīng) """
    result = random.choice([True, False])  # 50%失敗率
    assert result, "支付狀態(tài)查詢失敗"

$ pytest test_payment.py
============================
1 failed in 0.12s

$ pytest test_payment.py --reruns 3 --reruns-delay 0.5
============================
rerun test_payment.py::test_payment_status
Rerun #1: 失敗
Rerun #2: 成功

1 passed, 2 rerun in 0.87s

@pytest.mark.flaky(reruns=3, reruns_delay=1)
def test_api_connection():
    response = requests.get("https://unstable-api.com")
    assert response.status_code == 200

@pytest.mark.flaky(
    reruns=3, 
    condition=TypeError  # 僅當(dāng)捕獲TypeError時(shí)重試
)
def test_data_processing():
    # 可能因數(shù)據(jù)類型錯(cuò)誤失敗
    process_data(get_external_data())

pytest --reruns 2 --reruns-delay 1 --html=report.html

# 重跑+分布式執(zhí)行
pytest -n auto --reruns 3

# 重跑+失敗截圖
pytest --reruns 2 --screenshot-on-failure

# 重跑+性能監(jiān)控
pytest --reruns 1 --perf-monitor

pytest tests/payment/ --reruns 3 --reruns-delay 2

@pytest.mark.flaky(
    reruns=2, 
    reruns_delay=5,  # 等待服務(wù)注冊完成
    condition=ConnectionError
)
def test_service_integration():
    # 測試服務(wù)間調(diào)用

pytest mobile_tests/ --reruns 1 --reruns-delay 10

# 只對標(biāo)記為flaky的測試重跑
pytest -m flaky --reruns 3

# 使用智能延遲（指數(shù)退避）
@pytest.mark.flaky(reruns=3, reruns_delay="exponential")

# conftest.py
def pytest_runtest_logstart(nodeid, location):
    if hasattr(request.node, "execution_count"):
        count = request.node.execution_count
        print(f"\n[重試 #{count}] {nodeid}")

@pytest.fixture(autouse=True)
def cleanup_after_retry(request):
    yield
    if hasattr(request.node, "execution_count"):
        # 每次重試后清理
        reset_test_state()

偶發(fā)失敗不用慌，rerun插件來幫忙
--reruns 設(shè)次數(shù)，--delay 定間隔
標(biāo)記注解更精準(zhǔn)，避免濫用記心上
結(jié)合報(bào)告分布式，測試穩(wěn)定又高效