This project is an exercise to develop a simple function

The task was created from Tino according to his go-workshop.

Task

I want to have a function, which gets two strings and makes a hamming string comparison and returns the value.

Acceptance criteria

• valid hamming result
• in case of invalid string length, the function should return -1
• passes all test-cases
• also support Chinese characters

Steps

• define function signiture
• write unit tests for the function
• implement the function
• implement cli wrapper with one input argument for the possible isbn
• implement integration tests for the CLI
• implement input argument to pass a csv file-path with a list of possible ISBNs
• expend integration tests for the CLI with CSV file

Hints

• What is Hamming Code

The final result

How to run

$ go run main.go

How to test

$ go test main.go main_test.go