[Solved] Identify the error in this pytest assertion:def test_values(): a = 3 b = 4 assert a = b - Ans: Using '=' instead of '==' in assertion | PyTest

PyTest - Writing Assertions

Identify the error in this pytest assertion:

def test_values():
    a = 3
    b = 4
    assert a = b

AVariables a and b are not defined

BIncorrect indentation

CMissing colon after function definition

DUsing '=' instead of '==' in assertion

Step-by-Step Solution

Solution:

Step 1: Check assertion syntax
The assertion uses a single '=' which is assignment, not comparison.
Step 2: Correct syntax for equality check
Use '==' to compare values in assertions, so it should be 'assert a == b'.
Final Answer:
Using '=' instead of '==' in assertion -> Option D
Quick Check:
Equality requires '==' not '=' [OK]

Quick Trick: Use '==' for comparison, '=' is assignment [OK]

Common Mistakes:

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