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https://github.com/bilelmsekni/pagination-kata

Kata for CleanCode, TDD on brown field and BDD
https://github.com/bilelmsekni/pagination-kata

autofixture dotnet java nsubstitute nunit tdd-kata

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Kata for CleanCode, TDD on brown field and BDD

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Pagination-Kata
===============================

This Kata will help candidates learn about TDD development on green and brown fields.
The .Net version is using NUnit & NSubstitute while the Java implementation is based on JUnit and mockito.

Table of Contents
=================

1. Preparing your machine
2. Pagination Kata
3. Understanding solution
4. Licensing
5. Contacts
6. Credits

Preparing your machine
===============

1.1. Java
-----------------

* Download the package and unzip it. Next, import the project inside the Java folder as a Maven project inside Eclipse.

2.1. Installing Visual Studio
-----------------

* Download visual studio installation from the link below and install it on your machine:

https://www.visualstudio.com/en-us/products/visual-studio-community-vs.aspx

2.2. Adding Visual Studio extensions
--------------------------------

* Because we will be using Nunit, it will be useful to add Nunit test adapter 3 extension to visual studio in order to run tests from within the test explorer:

Open Visual Studio and go to Tools > Extensions and Updates.
Search for NUnit test adapter on the online gallery and add it.

2.3. Creating the test project
---------------------------

* Finally, create a new library project and add reference to the following packages via Nuget Manager console:

Open Visual Studio and go to Tools > NuGet package manager > NuGet package manager console and type these commands.

Install-Package NUnit

Install-Package NSubstitute

Pagination Kata
===============

You would like to paginate the items you are retrieving from the database before displaying them on a certain page.
In order to do so, you need to return the first and last page numbers. The Previous and next page numbers of the required page.

The rules are:

- The database can return 0 or more items.
- First page number is 0 if there are no items to display.
- Last page number is 0 if there are no items to display.
- Previous page number is:
* -1 if there are no items to display
* 0 if previous page does not exist.
* else required page - 1
- Next page number is:
* -1 if there are no items to display
* 0 if next page does not exist.
* required page + 1

Examples:
Given the items count is 7
And the number of items per page is 2
And the required page is 2
When i paginate
Then the first page is 1
And the last page is 4
And the previous page is 1
And the next page is 3
And the items displayed in page are [3,4]