Create unit tests for getopa.py

[mitchelbaker-cisa]

Prerequisites

• This issue has an informative and human-readable title.

💡 Summary

Create a new function, test_getopa.py, which will house the unit tests for the getopa.py function.

The test_getopa.py function should be stored inside of the scubagoggles/Testing/Python directory.

scubagoggles

• Testing
  • Functional
  • Rego
  • Python
    • test_getopa.py

Motivation and context

This issue is in relation to epic #330

Implementation notes

We will use the pytest library for implementing unit tests and use a class-based approach for the file structure.

Class TestGetOpa

• def test_getopa_raises_user_runtime_error(self, ...)
• def test_download_opa_raises_error_on_invalid_version_string(self, ...)
• def test_download_opa_raises_error_when_not_semantic_version(self, ...)
• def test_opa_filespec_returns_expected_path_for_windows(self, ...)
• def test_opa_filespec_returns_expected_path_for_linux(self, ...)
• def test_opa_filespec_returns_expected_path_for_macos(self, ...)
• def test_verify_opa_returns_true_for_valid_binary(self, ...)
• def test_verify_opa_returns_false_for_invalid_binary(self, ...)

Then running the unit tests are as simple as:

# for all Python unit tests
pytest ./Testing/Python/

# for all unit tests for a given file
pytest ./Testing/Python/test_getopa.py

# for an individual unit test
pytest ./Testing/Python -k test_opa_filespec_returns_expected_path_for_windows

Acceptance criteria

• The test_getopa.py function is added
• TestGetOpa class is implemented with methods that test the required behavior for each function declared in getopa.py