xUnit Theory Data from Configuration

I've said it before and I'll say it again, I love xUnit!

In particular, I love xUnits support for data driven tests. It offers several different options for ways to power a data driven unit test right out of the box. Best of all, xUnit allows for easy extensibility.

I have written some simple extensions for xUnit that allow you to power your data driven tests from your configuration file. Not only that, but it allows you to optionally provide default data using inline attributes when no configuration is available.

• GitHub - Source and Tests
• NuGet - xunit.extensions.config

Sample Config

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

    <section name="testData" 

type="Xunit.Extensions.Configuration.TestDataSection,xunit.extensions.config"/>

  </configSections>

  <testData>

    <tests>

      <add name="Demo.Tests.Basic">

        <data>

          <add index="0" p0="1" />

        </data>

      </add>

      <add name="Demo.Tests.FromConfig">

        <data>

          <add index="0" p0="4" />

        </data>

      </add>

    </tests>

  </testData>

</configuration>

Sample Tests

namespace Demo

{

    public class Tests

    {

        [Theory]

        [ConfigData]

        public void Basic(int i)

        {

            // This theory data comes from the config file.

            Assert.Equal(1, i);

        }

        [Theory]

        [ConfigOrInlineData(2)]

        public void FromInline(int i)

        {

            // This theory data comes from the attribute.

            Assert.Equal(2, i);

        }

        [Theory]

        [ConfigOrInlineData(3)]

        public void FromConfig(int i)

        {

            // This theory data comes from the config file

            // instead of the attribute.

            Assert.Equal(4, i);

        }

    }

}

Enjoy,
Tom