README.md

@@ -1,3 +1,18 @@
 # azkoyen_technical_test
 
-Azkoyen technical test implementation. Implemented (mostly) on standard c++ 17 framework, but with Qt wherever was necessary
+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
+
+- Will convert the contents of a file and output an enum class
+- Reads a sysfs-like file
+- If the file is missing, the reader will output Unreachable
+- If the file contains only  a "1" the reader will output Enabled
+- If the file contains "error: temp too high", the reader will output ErrorTempTooHigh
+- if the file contains any other value the reader will output UnexpectedValue
+- if the file is empty: it will output Empty
+