Order Attribute - jnm2/nunit-docs-wiki GitHub Wiki

The OrderAttribute may be placed on a test method or fixture to specify the order in which tests are run. Ordering is given by the required order argument to the attribute, an int.

The following tests will be run in the order:

• TestA
• TestB
• TestC

public class MyFixture
{
    [Test, Order(1)]
    public void TestA() { ... }


    [Test, Order(2)]
    public void TestB() { ... }

    [Test]
    public void TestC() { ... }
}

1. Tests with an OrderAttribute argument are started before any tests without the attribute.

2. Ordered tests are started in ascending order of the order argument.

3. Among tests with the same order value or without the attribute, execution order is indeterminate.

4. Tests do not wait for prior tests to finish. If multiple threads are in use, a test may be started while some earlier tests are still being run.