CoveragePy command for measuring Code Coverage

Question

Introduction

A directory containing a test and main python file has been created. Executing a test works:

C:\...>py test/test.py
..
----------------------------------------------------------------------
Ran 2 tests in 0.001s

OK

According to this documentation it is possible to measure code coverage using the command line.

A number of commands has been issued:

C:\...>coverage run --source="C:\path\to\test"
Nothing to do.
Use 'coverage help' for help.

C:\...>coverage run --source "C:\path\to\test\main.py" -m "C:\path\to\test\test.py"
No module named 'C:\path\to\test\test.py'

without success.

Question

Which command needs to be issued in order to measure the code coverage of a Python file using CoveragePy?

johntellsall · Accepted Answer · 2014-06-04 21:34:31Z

6

For coverage to capture data, you run the tests with the coverage tool. Something like this:

coverage run py test/test.py

Coverage can be awkward to get set up, but it's incredibly useful -- have fun!

You collect execution data by running your Python program with the run command:

$ coverage run my_program.py arg1 arg2

answered Jun 4, 2014 at 21:34

johntellsall

15.2k4 gold badges48 silver badges40 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Running coverage run main.py test.py and subsequently coverage report results in main 2 1 50%. Thank you. I will accept and upvote the answer.