🐣 Good First Issue: Standardize Test File Naming

This issue is reserved for people who have never or only recently contributed to Hiero
or any open source project in general.
We know that creating a pull request (PR) can be a major barrier for new contributors.
The goal of this issue and all other issues labeled 'good first issue'
is to help you make your first contribution to Hiero.

👾 Problem

Some of our test files currently use inconsistent naming patterns:

Unit tests: some files start with test_ (e.g., test_my_account.py) and some end with _test (e.g., my_account_test.py).

Integration tests: almost all use the _test postfix (e.g., account_allowance_e2e_test.py).

This inconsistency makes it harder to write a workflow that enforces test file naming, and leads to extra complexity in CI.

💡 Solution

We should standardize all test files in tests/unit and tests/integration to use the _test.py postfix.

Please skip renaming the following helper/config files:

init.py

conftest.py

mock_server.py

utils_for_test.py

💡 Implementation Steps

• Rename unit test files in tests/unit to follow the _test.py postfix convention.

• Rename integration test files in tests/integration to follow the _test.py postfix convention (if not already).

• Make sure the test imports still work after renaming.

• Verify that all tests still run and pass after renaming.

👩‍💻 Requirements to Pass

• All tests run successfully after renaming.

• Each commit is GPG and DCO signed: git commit -S -s -m "..."

(See docs/sdk_developers/signing.md
)

• Add a changelog entry in UNRELEASED:
  (See docs/sdk_developers/changelog_entry.md
  )

📝 Next Steps

• Comment below that you’d like to work on this issue.

• Wait to be assigned by a maintainer.

• Fork the repository and follow the instructions in CONTRIBUTING.md
  to start making your changes.

• Use the README.md
  for guidance on running tests locally.

Thank you for helping make Hiero more consistent and maintainable! 🛠️