[Solved] Identify the error in this fixture code and how to fix it:import pytest @pytest.fixture def resource(): setup = open('file.txt') yield setup setup.close() | PyTest

PyTest - Fixtures

Identify the error in this fixture code and how to fix it:

import pytest

@pytest.fixture
def resource():
    setup = open('file.txt')
    yield setup
    setup.close()

AFile 'file.txt' may not exist causing runtime error

BNo error; code is correct

CMissing parentheses in yield statement

DFixture must return value, not yield

Step-by-Step Solution

Solution:

Step 1: Analyze fixture code
The fixture opens a file and yields the file object, then closes it after test.
Step 2: Identify potential runtime issue
If 'file.txt' does not exist, open() will raise an error before yield. This is a runtime error, not syntax.
Final Answer:
File 'file.txt' may not exist causing runtime error -> Option A
Quick Check:
File open can fail if file missing [OK]

Quick Trick: Check external resources exist before opening in fixture [OK]

Common Mistakes:

MISTAKES

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