[Solved] Consider this pytest code:values = [0, '', None, False] assert 0 in values assert '' in values assert None in values assert False in valuesWhat is the main reason these assertions pass despite some... | PyTest

PyTest - Writing Assertions

Consider this pytest code:

values = [0, '', None, False]
assert 0 in values
assert '' in values
assert None in values
assert False in values

What is the main reason these assertions pass despite some values being falsy?

AAssertions ignore falsy values in lists

BFalsy values are automatically converted to True in assertions

CFalsy values cause syntax errors in assertions

DMembership checks test identity, not truthiness

Step-by-Step Solution

Solution:

Step 1: Understand membership vs truthiness
Membership checks test if the exact value exists in the list, regardless of whether it is truthy or falsy.
Step 2: Explain why assertions pass
Each falsy value (0, '', None, False) is present in the list, so assert x in values passes because it checks presence, not truthiness.
Final Answer:
Membership checks test identity, not truthiness -> Option D
Quick Check:
Membership checks presence, not boolean value [OK]

Quick Trick: Membership checks exact value, not truthiness [OK]

Common Mistakes:

MISTAKES

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