How do I test my Flask application?

How do I test my Flask application?

You can use the built-in testing client in Flask. Start by importing Flask's test client and creating a test case.

Can you show me a simple example?

Sure! Here's a basic example:

import unittest
from myapp import app

class FlaskTestCase(unittest.TestCase):
    def setUp(self):
        self.app = app.test_client()
        self.app.testing = True

    def test_home(self):
        response = self.app.get('/')
        self.assertEqual(response.status_code, 200)

What if I want to test a specific route?

You can create a test method for that route. For example:

def test_about(self):
    response = self.app.get('/about')
    self.assertEqual(response.data, b'About Page')

How do I run these tests?

You can run the tests using the command python -m unittest in your terminal.