eve.aio.result_test

Tests for OS error code to result enum mappings.

This module verifies that common OS error codes (errno on POSIX, GetLastError on Windows) are correctly mapped to EVE result enums. These tests document the expected behavior and catch platform-specific mapping regressions.

NOTE: These tests verify the logic of error mapping, not actual system call failures. They test the mapping functions that convert OS error codes to result enums.