TypeError：不支持的操作数类型 -：'Flask' 和 'Flask' - PyTest

Question

我正在尝试为 Flask 设置

PyTest

并遇到错误 TypeError:

unsupported operand type(s) for -: 'Flask' and 'Flask'

我的

conftest.py

文件中有两个灯具：

from application import init_app, db

@pytest.fixture(scope="module")
def test_app():
    """fixture for testing the application"""
    app - init_app()
    app.config.from_object("app.config.TestingConfig")
    with app.app_context():
        yield app


@pytest.fixture(scope="module")
def test_db():
    """fixture for cleaning and initializing the database"""
    db.create_all()
    yield db
    db.session.remove()
    db.drop_all()

然后我有几个测试只是测试我的配置文件：

"""Tests the flask app configuration app.config.py"""


def test_config(test_app):
    test_app.config.from_object("app.config.Config")
    assert test_app.config["JWT_SECRET_KEY"] == "Super_Secret"
    assert not test_app.config["TESTING"]
    assert test_app.config["SQLALCHEMY_DATABASE_URI"] == "mysql+pymysql://root:"


def test_testing_config(test_app):
    test_app.config.from_object("app.config.TestingConfig")
    assert test_app.config["SQLALCHEMY_DATABASE_URI"] == "mysql+pymysql://root:"
    assert test_app.config["TESTING"]

对于上下文，我导入了我的 init_app 所以这里是：

def init_app():
    app = Flask(__name__, instance_relative_config=False)
    app.config.from_object(Config)

    # Setup plugins
    db.init_app(app)
    ma.init_app(app)
    bcrypt.init_app(app)
    JWTManager.init_app(app)
    migration.init_app(app, db)
    mail.init_app(app)
    cors.init_app(app)

    from application.models import Answers

    with app.app_context():
        # Blueprints
        
        from application.answers import answers_blueprint

        app.register_blueprint(answers_blueprint)
       

        return app

Answer 1

app - init_app()

有错字：

@pytest.fixture(scope="module")
def test_app():
    """fixture for testing the application"""
    # app - init_app() # Typo here, should be = instead of -
    app = init_app()
    app.config.from_object("app.config.TestingConfig")
    with app.app_context():
        yield app