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Identify the error in the following pytest test code using a fixture:

medium📝 Debug Q14 of 15
PyTest - Fixtures
Identify the error in the following pytest test code using a fixture:
import pytest

@pytest.fixture
def data():
    return 42

def test_data(data):
    result = data()
    assert result == 42
AMissing @pytest.mark.usefixtures decorator
BCalling fixture as a function inside the test causes an error
CFixture name cannot be the same as test function argument
DFixture must return a string, not an integer
Step-by-Step Solution
Solution:
  1. Step 1: Review fixture usage in test

    The fixture data is passed as an argument to the test function.
  2. Step 2: Identify incorrect call

    Inside the test, data() is called as if it were a function, but pytest already passes the fixture's return value. Calling it again causes a TypeError.
  3. Final Answer:

    Calling fixture as a function inside the test causes an error -> Option B
  4. Quick Check:

    Fixture argument is value, not callable [OK]
Quick Trick: Do not call fixture argument as function inside test [OK]
Common Mistakes:
MISTAKES
  • Calling fixture argument like a function
  • Confusing fixture definition with usage
  • Adding unnecessary decorators

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