test: coverage update

[eschmidt42]

This pull request refactors and improves the test suite for DKB account ETL providers and related utilities. The main focus is on making test data management more robust and maintainable by introducing pytest fixtures for test file paths, improving parameterization, and standardizing file handling across tests. Additionally, new tests are added for number conversion and transaction utilities.

Test suite refactoring and improvements:

• Replaced hardcoded file paths in tests for DKB credit, festgeld, giro, and related providers with pytest fixtures (csv_file, csv_fname, files_root_path), making tests more maintainable and flexible. This change affects test setup, file existence checks, and parameter passing throughout the test files. [1] [2] [3] [4] [5]
• Updated configuration and utility function usage in tests to use the new fixtures and to reference file names dynamically, rather than relying on hardcoded values. This includes changes to how config objects are created in tests and how file paths are constructed. [1] [2] [3] [4] [5] [6]
• Refactored exception handling tests to use the new file fixtures, ensuring that error scenarios are tested with dynamically provided file paths. [1] [2] [3] [4]

New and improved test coverage:

• Added new tests in test_number_conversion.py for German number parsing and conversion utilities, including error handling and currency stripping.
• Added new tests in test_transactions.py for transaction hashing and verification utilities, including error scenarios.

Utility function integration:

• Updated tests to use utility functions for generating output file names (balance_csv_name_to_json, balance_csv_name_to_parquet, transaction_csv_name_to_parquet, transaction_csv_name_to_xlsx), ensuring consistency with production code. [1] [2] [3]

These changes collectively improve the maintainability, reliability, and readability of the test codebase, and make it easier to add new test cases or modify existing ones as the ETL logic evolves.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.48%. Comparing base (3ca9ce0) to head (f5c8219).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
+ Coverage   99.45%   99.48%   +0.02%     
==========================================
  Files          81       83       +2     
  Lines        6097     6223     +126     
  Branches      237      238       +1     
==========================================
+ Hits         6064     6191     +127     
+ Misses         25       24       -1     
  Partials        8        8              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.