Pytest框架之fixture详解（三）

# conftest.py文件
​
# fixture的params参数
# 取value1时，会把依赖此fixture的用例执行一遍。
# 取value2时，会把依赖此fixture的用例执行一遍。
# 取value3时，会把依赖此fixture的用例执行一遍。
# params有几个参数，就会将依赖此fixture的用例执行几遍。
@pytest.fixture(params=[value1, value2, value3..])
def fix_name():
    # do something

# conftest.py
​
# params设置为google和firefox
@pytest.fixture(params=["google", "firefox"])
def browser_fix(request):
    if request.param == "google":
        driver = webdriver.Chrome()
    elif request.param == "firefox":
        driver = webdriver.Firefox()
    else:
        driver = None
    yield driver
    if driver:
        driver.quit()

# test_baidu_action.py
​
@pytest.mark.usefixtures("browser_fix")
def test_baidu(browser_fix):
    driver = browser_fix
    driver.get("https://www.baidu.com/")
    driver.find_element(By.ID, "kw").send_keys("pytest", Keys.ENTER)
    loc = (By.XPATH, '//h3')
    WebDriverWait(driver,10).until(EC.visibility_of_element_located(loc))
    driver.find_element(*loc).click()

@pytest.fixture
def make_customer_record():
    def _make_customer_record(name):
        return {"name": name, "orders": []}
​
    return _make_customer_record
​
# 用例内部，多次调用了fixture.
def test_customer_records(make_customer_record):
    customer_1 = make_customer_record("Lisa")  # 第1次调用
    customer_2 = make_customer_record("Mike")  # 第2次调用
    customer_3 = make_customer_record("Meredith")  # 第3次调用

@pytest.fixture
def make_customer_record():
     
    # 管理工厂的数据。在前置中创建。在后置中销毁
    created_records = []
​
    def _make_customer_record(name):
        record = models.Customer(name=name, orders=[])
        # 前置中添加数据
        created_records.append(record)
        return record
​
    yield _make_customer_record  # 返回内部函数
     
    # 销毁数据
    for record in created_records:
        record.destroy()
​
# 测试用例
def test_customer_records(make_customer_record):
    customer_1 = make_customer_record("Lisa")
    customer_2 = make_customer_record("Mike")
    customer_3 = make_customer_record("Meredith")

import pytest
​
@pytest.fixture(params=[1,2])
def init(request):
    print("用例名称：", request.function)
    print("fix参数 ", request.param)
    print("fix的作用域 ", request.scope)
    print("用例所在的类 ", request.cls)

@pytest.mark.usefixtures("init")
class TestABC:
​
    def test_hello(self):
        print("-------------------------")