https://github.com/alvarogarcia7/kata-formulation-copy-program

https://github.com/alvarogarcia7/kata-formulation-copy-program

dip fake kata kata-boilerplate kata-formulation mock solid-principles stub

Last synced: 4 months ago
JSON representation

• Host: GitHub
• URL: https://github.com/alvarogarcia7/kata-formulation-copy-program
• Owner: alvarogarcia7
• Created: 2017-05-29T13:18:17.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2017-05-29T17:38:44.000Z (about 9 years ago)
• Last Synced: 2025-08-11T21:34:42.798Z (10 months ago)
• Topics: dip, fake, kata, kata-boilerplate, kata-formulation, mock, solid-principles, stub
• Size: 29.3 KB
• Stars: 1
• Watchers: 0
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
# Kata Formulation: Copy Program

## Description

> Consider a simple program that is charged

> with the task of copying characters typed on a keyboard to a printer. Assume, furthermore,

> that the implementation platform does not have an operating system that supports device

> independence. We might conceive of a structure for this:

> !['Copy Program' module diagram](./images/copy-program.png)

> Figure [above] is a "structure chart". It shows that there are three modules, or subprograms,

> in the application. The "Copy" module calls the other two. One can easily imagine a loop

> within the "Copy" module. The body of that loop calls the "Read Keyboard" module to fetch 

> a character from the keyboard, it then sends that character to the "Write Printer" module 

> which prints the character.

> extracted from [The Dependency Inversion Principle](https://drive.google.com/file/d/0BwhCYaYDn8EgMjdlMWIzNGUtZTQ0NC00ZjQ5LTkwYzQtZjRhMDRlNTQ3ZGMz/view), by Robert C. Martin

## Problem

Your task, should you accept it, is to write a program that performs the above-descripted

action.

Bear in mind that we are not sure where to 'read' from. Neither where we want to write to.

These are the APIs we want to have:

```java

class ReadKeyboard {

  public boolean hasNext();

  public String  get();

}

```

```java

class WritePrinter {

  public void print(String message);

}

```