Repeat

RepeatAttribute is used on a test method to specify that it should be executed multiple times.

By default, the test is repeated until a failure occurs. If no failures occur, it runs for the specified number of repetitions.

You can change this behavior in case of a failure, so that it continues to run after the failure by setting the property StopOnFailure to false. (From version 4.3.0)

Examples

The default behavior

[Test]
[Repeat(5)]
public void TestMethod1()
{
    Assert.Pass();
}

Run all regardless of failures

private int count2 = 0;

[Test,Explicit]  // Marking the test as Explicit to avoid failing our doc build. You can skip this.
[Repeat(5, StopOnFailure = false)]
public void TestMethod3()
{
    count2++;
    Assert.That(count2, Is.Not.EqualTo(3)); // Intentional failure on 3rd iteration
}

Warning

There is currently (as of 4.4.0) a bug which causes only the last successful console statement to be output. Also, in case of failures, only the latest failure is shown.

Note

If RepeatAttribute is used on a parameterized method, each individual test case created for that method is repeated. It is not currently possible to use RepeatAttribute on a TestFixture or any higher level suite. Only test cases may be repeated.