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Python

Posted by Jacopo Scrinzi
Jacopo Scrinzi
16,668 Points

How to test Flask-WTF forms

Hi there,

I'm writing my own Flask app and it's arrived the time to write my tests. I have no problem testing my models and my views but I have no clue where to start to test my Forms. What's the best way to do it? Do I have to test it though the views or I can test the forms on his own?

Thanks

2 Answers

Iain Simmons
Iain Simmons
Treehouse Moderator 32,305 Points

I'd say forms are just view elements for users to input data, so I think testing the views and then checking the data ends up in the right place.

Jacopo Scrinzi
Jacopo Scrinzi
16,668 Points
Jacopo Scrinzi
Jacopo Scrinzi
16,668 Points

Thanks Ian for replying me, do you think I should chek in the view test the correct behaviour of the form error messages and so test every different possibility? or you think that is enough to test that the submission of the form works? thanks

Iain Simmons
Iain Simmons
Treehouse Moderator 32,305 Points

I think that's up to you, but maybe a good compromise is to test the different types of errors that you're handling? That might be invalid data, no connection to the database or wherever the data store is, or something just generally going wrong in the process of sending/saving the data.