# azkoyen_technical_test

Azkoyen technical test implementation. Implemented (mostly) on standard c++ 17 framework, but with Qt wherever was necessary.

## Development approach

A Test-Driven Development (TDD) workflow was followed throughout the project. Every component — from the lowest-level file reader to the GUI window — has a corresponding Google Test suite that was written before (or alongside) the production code. This ensures each module behaves correctly in isolation and makes regressions immediately visible.

## SysfsRead class

`SysfsReader` ([include/SysfsRead.hpp](include/SysfsRead.hpp), [src/core/SysfsRead.cxx](src/core/SysfsRead.cxx)) is the lowest-level component. It opens a sysfs-like file and translates its raw text content into a `SysfsStatus` enum:

| File content             | Status              |
|--------------------------|---------------------|
| `"1"`                    | `Enabled`           |
| `"error: temp too high"` | `ErrorTempTooHigh`  |
| empty / whitespace-only  | `Empty`             |
| file missing             | `Unreachable`       |
| anything else            | `UnexpectedValue`   |

The reader never throws on I/O errors; every outcome is expressed through the enum so callers can react without exception handling. A helper `trim_in_place` strips trailing whitespace and newlines before comparison.

**Tests:** [tests/test_sysfs_read.cxx](tests/test_sysfs_read.cxx) — covers all five status branches by writing controlled content to a temporary file.