[Solved] What is wrong with this Flask test code snippet for login?response = client.post('/login', json={'username': 'user', 'password': 'pass'}) | Flask

Flask - Testing Flask Applications

What is wrong with this Flask test code snippet for login?

response = client.post('/login', json={'username': 'user', 'password': 'pass'})

ANot setting headers for content type

BMissing follow_redirects=True parameter

CIncorrect URL endpoint for login

DUsing 'json' instead of 'data' for form submission

Step-by-Step Solution

Solution:

Step 1: Understand form submission
Flask login routes usually expect form-encoded data, not JSON.
Step 2: Identify parameter usage
Using 'json' sends JSON payload, which may not be handled by the login route.
Final Answer:
Using 'json' instead of 'data' for form submission -> Option D
Quick Check:
Use 'data' for form data, not 'json' [OK]

Quick Trick: Form data requires 'data', not 'json' [OK]

Common Mistakes:

MISTAKES

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