Question

我有这个Flask应用：

myapp.py ：

def create_app():
    app = Flask(__name__)
    return app

app = create_app()
session = session_factory()


def connect_db():
    engine = get_engine()
    return engine.connect()

@app.route("/")
def hello():
    return "Hello everyone"

我想编写一些pytest测试，所以我创建了两个文件：

conftest.py：

import pytest
from app.myapp import create_app

@pytest.fixture
def app():
    app = create_app()
    return app

@pytest.fixture
def client(app):
    return app.test_client()

@pytest.fixture
def runner(app):
    return app.test_cli_runner()

test_endpoints.py

import pytest
from flask import *

def test_hello(client):
    response = client.get("/")
    assert response.data == b'Hello everyone'

运行pytest时，出现此错误：

>       assert response.data == b'Hello everyone'
E       assert '<!DOCTYPE HT... again.</p>\n' == 'Hello everyone'
E         + Hello everyone
E         - <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
E         - <title>404 Not Found</title>
E         - <h1>Not Found</h1>
E         - <p>The requested URL was not found on the server.  If you entered the URL manually please check your spelling and try again.</p>

为什么pytest找不到端点？我可以在这里添加些什么才能使其正常工作？

Answer 1

您不会在从固定装置中的app获得的create_app()上添加任何路由。

如果您考虑自己的代码

def create_app():
    app = Flask(__name__)
    return app

app = create_app()

# ...

@app.route("/")
def hello():
    return "Hello everyone"

，该hello路由仅添加到该全局app实例，而不是您从灯具中获取的路由。

Flask教程，line 573，covers testing。您可能也想这样做。像这样的东西。

bp = Blueprint('greetings', __name__)

@bp.route("/")
def hello():
    return "Hello everyone"

def create_app():
    app = Flask(__name__)
    app.register_blueprint(bp)
    return app

pytest失败：找不到请求的URL

1 个答案: