Unit tests for Submission worker.

[KhalidRmb]

Following tests are covered:

• download_and_extract_file
• download_and_extract_zip_file
• create_dir
• create_dir_as_python_package
• return_file_per_environment
• get_or_create_sqs_queue

[KhalidRmb]

@RishabhJain2018 The command I used to run the tests:DJANGO_SETTINGS_MODULE=settings.test DJANGO_SERVER=testserver pytest ./tests/unit/submissionworker/test_worker.py

[KhalidRmb]

@Ram81

[Ram81]

@KhalidRmb were you able to resolve the issue with test_download_and_extract_zip ?

[KhalidRmb]

@Ram81 No, I've done a corrupt file check as specified in the zipfile docs, but they pass. Rishabh is looking into it I think.

[Ram81]

@KhalidRmb why are the travis build failing can you fix that? if it is a blocker let's add that test later on. For now just add the tests that are working

[KhalidRmb]

@KhalidRmb why are the travis build failing can you fix that? if it is a blocker let's add that test later on. For now just add the tests that are working

Use this command for running the tests, to avoid travis errors. A new PR is required to change the env variable DJANGO_SERVER to testserver in test environment.
DJANGO_SETTINGS_MODULE=settings.test DJANGO_SERVER=testserver pytest ./tests/unit/submissionworker/test_worker.py

[Ram81]

@KhalidRmb please remove the failing tests on which you are blocked, so that we can merge rest of the PR

[KhalidRmb]

@KhalidRmb please remove the failing tests on which you are blocked, so that we can merge rest of the PR

Done @Ram81

[Ram81]

@KhalidRmb @RishabhJain2018 LGTM 👍