change: split coverage out from testenv in tox.ini

CONTRIBUTING.md

@@ -77,8 +77,8 @@ Before sending us a pull request, please ensure that:
 1. Install coverage using `pip install .[test]`
 1. cd into the sagemaker-python-sdk folder: `cd sagemaker-python-sdk` or `cd /environment/sagemaker-python-sdk`
 1. Run the following tox command and verify that all code checks and unit tests pass: `tox tests/unit`
-
-You can also run a single test with the following command: `tox -e py310 -- -s -vv <path_to_file><file_name>::<test_function_name>`
+1. You can also run a single test with the following command: `tox -e py310 -- -s -vv <path_to_file><file_name>::<test_function_name>`
+1. You can run coverage via runcvoerage env : `tox -e runcoverage -- tests/unit` or `tox -e py310 -- tests/unit --cov=sagemaker --cov-append --cov-report xml`
   * Note that the coverage test will fail if you only run a single test, so make sure to surround the command with `export IGNORE_COVERAGE=-` and `unset IGNORE_COVERAGE`
   * Example: `export IGNORE_COVERAGE=- ; tox -e py310 -- -s -vv tests/unit/test_estimator.py::test_sagemaker_model_s3_uri_invalid ; unset IGNORE_COVERAGE`
 

tox.ini

@@ -86,12 +86,17 @@ commands =
     pip install 'torchvision==0.15.2+cpu' -f 'https://download.pytorch.org/whl/torch_stable.html'
     pip install 'dill>=0.3.8'
 
-    pytest --cov=sagemaker --cov-append {posargs}
-{env:IGNORE_COVERAGE:} coverage report -i --fail-under=86
+    pytest {posargs}
 deps = .[test]
 depends =
     {py38,py39,py310,p311}: clean
 
+[testenv:runcoverage]
+description = run unit tests with coverage 
+commands =
+    pytest --cov=sagemaker --cov-append {posargs} 
+    {env:IGNORE_COVERAGE:} coverage report -i --fail-under=86
+
 [testenv:flake8]
 skipdist = true
 skip_install = true