具有Unittest的Flask-WTF / WTForms未通过验证，但无需Unittest即可运行

Question

当我正常运行app并在浏览器中登录时，它可以工作。但是使用Unittest它不会登录....，它会再次返回登录页面。
“print rv.data”只打印登录页面的内容，但是应该打印索引页面的内容，即login_required
如果它有帮助，我使用SQLAlchemy作为ORM。 谁知道什么可能有问题？如果需要更多代码，我会提供。 我试图在这里搜索类似的问题，但没有找到。

#!flask/bin/python
import os
import unittest

from config import basedir
from app import app, db
from app.models import User,Exam,Attempt,Subject

class TestCase(unittest.TestCase):
    def setUp(self):
        app.config['TESTING'] = True
        app.config['CSRF_ENABLED'] = False
        app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'test.db')
        self.app = app.test_client()
        db.create_all()

    def tearDown(self):
        db.session.remove()
        db.drop_all()

    def login(self, username, password):
        return self.app.post('/login', data=dict(
            username=username,
            password=password
        ), follow_redirects=True)

    def test_users(self):
        u = User(username = 'gaucan', password = 'gau')
        db.session.add(u)
        db.session.commit()

        rv = self.login('gaucan','gau')
        print rv.data
        rv = self.app.get('/',follow_redirects=True)
        print rv.data

if __name__ == '__main__':
    unittest.main()

我添加了查看登录功能供您查看...

@app.route('/login', methods = ['GET', 'POST'])
def login():
if g.user is not None and g.user.is_authenticated():
    return redirect(url_for('index'))

form = LoginForm()
if form.validate_on_submit():
    user = User.query.filter_by(username = form.username.data).first()
    if user is not None and form.password.data == user.password:
        login_user(user)
        flash("Logged in successfully.")
        return redirect(request.args.get('next') or url_for('index'))
    flash('Invalid password')
return render_template('login.html', 
    title = 'Sign In',
    form = form)

这里是从form.validate_on_submit上面的行回溯

> /home/gaucan/webdev/projekt2/app/views.py(131)login()
-> if form.validate_on_submit():
(Pdb) bt
  /home/gaucan/webdev/projekt2/shit.py(41)<module>()
-> unittest.main()
  /usr/lib64/python2.7/unittest/main.py(95)__init__()
-> self.runTests()
  /usr/lib64/python2.7/unittest/main.py(232)runTests()
-> self.result = testRunner.run(self.test)
  /usr/lib64/python2.7/unittest/runner.py(151)run()
-> test(result)
  /usr/lib64/python2.7/unittest/suite.py(70)__call__()
-> return self.run(*args, **kwds)
  /usr/lib64/python2.7/unittest/suite.py(108)run()
-> test(result)
  /usr/lib64/python2.7/unittest/suite.py(70)__call__()
-> return self.run(*args, **kwds)
  /usr/lib64/python2.7/unittest/suite.py(108)run()
-> test(result)
  /usr/lib64/python2.7/unittest/case.py(433)__call__()
-> return self.run(*args, **kwds)
  /usr/lib64/python2.7/unittest/case.py(369)run()
-> testMethod()
  /home/gaucan/webdev/projekt2/shit.py(35)test_users()
-> rv = self.login('gaucan','gau')
  /home/gaucan/webdev/projekt2/shit.py(28)login()
-> ), follow_redirects=True)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(771)post()
-> return self.open(*args, **kw)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/testing.py(108)open()
-> follow_redirects=follow_redirects)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(735)open()
-> response = self.run_wsgi_app(environ, buffered=buffered)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(658)run_wsgi_app()
-> rv = run_wsgi_app(self.application, environ, buffered=buffered)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(854)run_wsgi_app()
-> app_iter = app(environ, start_response)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1836)__call__()
-> return self.wsgi_app(environ, start_response)
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1817)wsgi_app()
-> response = self.full_dispatch_request()
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1475)full_dispatch_request()
-> rv = self.dispatch_request()
  /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1461)dispatch_request()
-> return self.view_functions[rule.endpoint](**req.view_args)
> /home/gaucan/webdev/projekt2/app/views.py(131)login()
-> if form.validate_on_submit():
(Pdb) 

> /home/gaucan/webdev/projekt2/app/views.py(131)login() -> if form.validate_on_submit(): (Pdb) bt /home/gaucan/webdev/projekt2/shit.py(41)<module>() -> unittest.main() /usr/lib64/python2.7/unittest/main.py(95)__init__() -> self.runTests() /usr/lib64/python2.7/unittest/main.py(232)runTests() -> self.result = testRunner.run(self.test) /usr/lib64/python2.7/unittest/runner.py(151)run() -> test(result) /usr/lib64/python2.7/unittest/suite.py(70)__call__() -> return self.run(*args, **kwds) /usr/lib64/python2.7/unittest/suite.py(108)run() -> test(result) /usr/lib64/python2.7/unittest/suite.py(70)__call__() -> return self.run(*args, **kwds) /usr/lib64/python2.7/unittest/suite.py(108)run() -> test(result) /usr/lib64/python2.7/unittest/case.py(433)__call__() -> return self.run(*args, **kwds) /usr/lib64/python2.7/unittest/case.py(369)run() -> testMethod() /home/gaucan/webdev/projekt2/shit.py(35)test_users() -> rv = self.login('gaucan','gau') /home/gaucan/webdev/projekt2/shit.py(28)login() -> ), follow_redirects=True) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(771)post() -> return self.open(*args, **kw) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/testing.py(108)open() -> follow_redirects=follow_redirects) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(735)open() -> response = self.run_wsgi_app(environ, buffered=buffered) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(658)run_wsgi_app() -> rv = run_wsgi_app(self.application, environ, buffered=buffered) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/werkzeug/test.py(854)run_wsgi_app() -> app_iter = app(environ, start_response) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1836)__call__() -> return self.wsgi_app(environ, start_response) /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1817)wsgi_app() -> response = self.full_dispatch_request() /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1475)full_dispatch_request() -> rv = self.dispatch_request() /home/gaucan/webdev/projekt2/flask/lib/python2.7/site-packages/flask/app.py(1461)dispatch_request() -> return self.view_functions[rule.endpoint](**req.view_args) > /home/gaucan/webdev/projekt2/app/views.py(131)login() -> if form.validate_on_submit(): (Pdb)

Answer 1

您应该设置WTF_CSRF_ENABLED而不是CSRF_ENABLED - 现在，Flask-WTForms正在尝试验证您的CSRF令牌，但您没有提供一个：

class TestCase(unittest.TestCase):
    def setUp(self):
        app.config['TESTING'] = True
        # Wrong key:
        # app.config['CSRF_ENABLED'] = False
        # Right key:
        app.config['WTF_CSRF_ENABLED'] = False