Debug Python Unit Tests in Cloud9 IDE

Currently, you cannot integrate "pytest" in Cloud9 IDE as we can in pycharm IDE under default test runner. Having said that, we can still write the "pytest" test and run them manually by using command : python -m pytest -vv <test_file_name>.py

For example please consider below :

"hello.py" - simply has two functions which returns strings "hi" and "bye" -

---

def hello():

return "hi"

def bye():

return "bye"

---

Then we write the tests for pytest "test_hello.py" -

---

from hello import *

def test_hello():

assert "hi" == hello()

def test_hello2():

assert "some" == hello()

def test_bye():

assert "bye" == bye()

---

Run test : python -m pytest -vv test_hello.py

======== test session starts ==============

platform linux -- Python 3.7.10, pytest-7.1.3, pluggy-1.0.0 -- /usr/bin/python3 cachedir: .pytest_cache rootdir: /home/ec2-user/environment collected 3 items

test_hello.py::test_helo PASSED [ 33%] test_hello.py::test_helo2 FAILED [ 66%] test_hello.py::test_bye PASSED [100%]

=============== FAILURES ==================

_________________ test_helo2 _____________________

def test_helo2():

  assert "some" == helo()

E AssertionError: assert 'some' == 'hi' E - hi E + some

test_hello.py:7: AssertionError

============ short test summary info ================

Additionally, please refer [+} https://www.youtube.com/watch?v=IN4qt-9bMiE for detailed explanation on using pytest in cloud9 environment.

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