Add optional support for a simple CAPTCHA.

[almet]

Add support for a simple CAPTCHA. Alternate solution for #841.

[almet]

Hey, I've tried adding these tests but it seems that they have some side effect on the other ones, which start to ask for a CAPTCHA even if they shouldn't.

I'm unsure as to when I'll be able to spend some more time on this, don't hesitate to take over if you feel like it.

class CaptchaTestCase(IhatemoneyTestCase):
    ENABLE_CAPTCHA = True
    def test_project_creation_with_captcha(self):
        with self.app.test_client() as c:
            res = c.post(
                "/create",
                data={
                    "name": "raclette party",
                    "id": "raclette",
                    "password": "party",
                    "contact_email": "raclette@notmyidea.org",
                    "default_currency": "USD",
                },
            )
            self.assertEqual(len(models.Project.query.all()), 0)

            res = c.post(
                "/create",
                data={
                    "name": "raclette party",
                    "id": "raclette",
                    "password": "party",
                    "contact_email": "raclette@notmyidea.org",
                    "default_currency": "USD",
                    "captcha": "nope"
                },
            )
            self.assertEqual(len(models.Project.query.all()), 0)

            res = c.post(
                "/create",
                data={
                    "name": "raclette party",
                    "id": "raclette",
                    "password": "party",
                    "contact_email": "raclette@notmyidea.org",
                    "default_currency": "USD",
                    "captcha": "euro"
                },
            )
            self.assertEqual(len(models.Project.query.all()), 1)

[almet]

I'm curious why when put in this file it doesn't have side effects, because it had some when I put it in the budget_test.py file. Any idea?

[Glandos]

In fact… no. I put it there just because I felt it was the right place, and it just worked.

[almet]

Thanks for taking over @Glandos :-)

[almet]

It's now ready to be merged.