After running coverage run manage.py test, the coverage report shows 0% coverage. What is a common reason for this?

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Django - Testing Django Applications

After running coverage run manage.py test, the coverage report shows 0% coverage. What is a common reason for this?

AThe tests did not execute any code

BTests ran in a different Python environment than coverage

CCoverage was not installed

DThe report command was run before tests

Step-by-Step Solution

Solution:

Step 1: Understand coverage data collection
Coverage collects data from the Python environment running the tests.
Step 2: Identify environment mismatch
If tests run in a different environment (e.g., virtualenv) than coverage, no data is collected.
Final Answer:
Tests ran in a different Python environment than coverage -> Option B
Quick Check:
Ensure coverage and tests run in the same environment. [OK]

Quick Trick: Coverage and tests must run in the same environment [OK]

Common Mistakes:

MISTAKES

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