test: switch test frameworks

[cesarcoatl]

from pytest to unittest
get system modules dynamically

[sourcery-ai]

Hey @cesarcoatl - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟡 Testing: 3 issues found
• 🟢 Complexity: all looks good
• 🟢 Docstrings: all looks good

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[sourcery-ai]

suggestion (testing): Consider adding a test for dynamic module discovery failure.

While the current tests ensure that expected modules can be imported, it would be beneficial to also test the behavior when a module cannot be discovered dynamically. This could help in ensuring the robustness of the dynamic discovery mechanism.

Suggested change

	def assertModuleAvailable(self, module_name):
	def assertModuleAvailable(self, module_name):
	try:
	importlib.import_module(module_name)
	except ImportError:
	self.fail("Failed to import module: {}".format(module_name))
	def test_module_not_found_behavior(self):
	with self.assertRaises(ImportError):
	importlib.import_module("non_existent_module_name")

[sourcery-ai]

suggestion (testing): Ensure cleanup is called after each test to prevent state leakage.

The _cleanup function is called at the end of the module discovery process, which might not guarantee its execution after each test case. Consider using tearDown or tearDownClass methods to ensure that _cleanup is executed reliably after each test or after all tests in the class, respectively.

[sourcery-ai]

suggestion (testing): Consider a more explicit approach than using locals() for test case generation.

Using locals() to dynamically generate test cases can make the code harder to understand and debug. A more explicit approach, such as adding test methods directly to the TestPackageImports class or using a test case generation library, might improve readability and maintainability.

Suggested change

	locals()[test_name] = _create_import_test(module_name)
	def _generate_test_cases():
	for module_name in modules_to_test:
	test_name = "test_import_{}".format(module_name)
	def test(self, module_name=module_name):
	self.assertModuleAvailable(module_name)
	setattr(TestPackageImports, test_name, test)
	_generate_test_cases()

[sourcery-ai]

issue (code-quality): Hoist repeated code outside conditional statement (hoist-statement-from-if)