Intelligent Test Runner for .NET

Compatibility

Intelligent Test Runner is only supported on dd-trace>= 2.22.0 (execute dd-trace --version to get the version of the tool).

Setup

Test Visibility

Prior to setting up Intelligent Test Runner, set up Test Visibility for .NET. If you are reporting data through the Agent, use v6.40 and later or v7.40 and later.

Activate Intelligent Test Runner for the test service

You, or a user in your organization with the Intelligent Test Runner Activation (intelligent_test_runner_activation_write) permission, must activate the Intelligent Test Runner on the Test Service Settings page.

Run tests with the Intelligent Test Runner enabled

After completing setup, run your tests as you normally do by using dotnet test or VSTest.Console.exe:

dd-trace ci run --dd-service=my-dotnet-app --dd-env=ci -- dotnet test

dd-trace ci run --dd-service=my-dotnet-app --dd-env=ci -- VSTest.Console.exe {test_assembly}.dll

Disable skipping for specific tests

You can override the Intelligent Test Runner’s behavior and prevent specific tests from being skipped. These tests are referred to as unskippable tests.

Why make tests unskippable?

The Intelligent Test Runner uses code coverage data to determine whether or not tests should be skipped. In some cases, this data may not be sufficient to make this determination.

Examples include:

• Tests that read data from text files.
• Tests that interact with APIs outside of the code being tested (such as remote REST APIs).
• Designating tests as unskippable ensures that the Intelligent Test Runner runs them regardless of coverage data.

Marking tests as unskippable

using Xunit;
using Xunit.Abstractions;

public class MyTestSuite
{
  [Fact]
  [Trait("datadog_itr_unskippable", null)]
  public void MyTest()
  {
    // ...
  }
}

using Xunit;
using Xunit.Abstractions;

[Trait("datadog_itr_unskippable", null)]
public class MyTestSuite
{
  [Fact]
  public void MyTest()
  {
    // ...
  }
}

using NUnit.Framework;

public class MyTestSuite
{
  [Test]
  [Property("datadog_itr_unskippable", "")]
  public void MyTest()
  {
    // ...
  }
}

using NUnit.Framework;

[Property("datadog_itr_unskippable", "")]
public class MyTestSuite
{
  [Test]
  public void MyTest()
  {
    // ...
  }
}

using Microsoft.VisualStudio.TestTools.UnitTesting;

[TestClass]
public class MyTestSuite
{
  [TestMethod]
  [TestProperty("datadog_itr_unskippable", null)]
  public void MyTest()
  {
    // ...
  }
}

Further Reading

Additional helpful documentation, links, and articles:

Explore Test Results and PerformanceDOCUMENTATION Troubleshooting CI VisibilityDOCUMENTATION