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(Related projects: NVisitor, NDocUtil, NUtil, NGitVersion)

NCase

Define, Combine, Visualize and Replay hundreds of test cases with a few lines of code.

NCase is a mix between a Mocking Framework like Moq and a parametrized test framework, having advanced combinatorial capabilities.

It can also be used alone to generate a set of data based on combinatorial rules.

Installation

The easiest way is to install NCase with Nuget.

In combination with NUnit:

Install-Package NCase, NCase.NunitAdapter

In combination with XUnit:

Install-Package NCase, NCase.XunitAdapter

First Steps

Create a new console application containing the following lines:

public interface IVar
{
    int X { get; set; }
    int Y { get; set; }
}

public static void Main()
{
    var builder = NCase.NewBuilder();
    var v = builder.NewContributor<IVar>("v");
    var mySet = builder.NewCombinationSet("c");

    using (mySet.Define())
    {
        v.X = 0;
        v.X = 1;

        v.Y = 0;
        v.Y = 1;
    }

    string table = mySet.PrintCasesAsTable();

    Console.WriteLine(table);
}

Ensure that the configuration is set to DEBUG. Execute the program. The result in the console should look like:

 # | v.X | v.Y
 - | --- | ---
 1 |   0 |   0
 2 |   0 |   1
 3 |   1 |   0
 4 |   1 |   1

TOTAL: 4 TEST CASES

Bingo! You generated your first set of test cases.

Now, add the following lines to use each combination:

foreach (Case c in mySet.Cases().Replay())
    Console.WriteLine("{0} ^ {1} = {2}", v.X, v.Y, v.X ^ v.Y);

0 ^ 0 = 0
0 ^ 1 = 1
1 ^ 0 = 1
1 ^ 1 = 0

It generates and replays all test cases one by one!

Discovering NCase

See the long introduction

Next Steps

First, have fun with NCase!

Then, please provide feedbacks, critiques, and suggestions!