Flow Control Attributes

Prova provides a set of attributes to control the execution flow of your tests, allowing you to handle flaky tests, enforce timeouts, repeat tests, and set specific cultures.

[Retry]

The [Retry(count)] attribute allows you to automatically retry a failing test a specified number of times. This is useful for flaky tests that fail intermittently due to external factors.

[Fact]
[Retry(3)] // Retry up to 3 times
public void FlakyTest()
{
    // ...
}

[Timeout]

The [Timeout(milliseconds)] attribute enforces a maximum execution time for a test. If the test takes longer than the specified time, it will fail with a TimeoutException.

• Scope: Can be applied to Methods, Classes, or the Assembly.
• Priority: Method > Class > Assembly.

[Fact]
[Timeout(500)] // Fail if takes longer than 500ms
public async Task PerformanceSensitiveTest()
{
    await ProcessingStep();
}

[Repeat]

The [Repeat(count)] attribute runs the same test multiple times. This is useful for verify stability or load testing small units.

[Fact]
[Repeat(10)] // Run this test 10 times
public void StabilityTest()
{
    // ...
}

[Culture]

The [Culture("name")] attribute sets CultureInfo.CurrentCulture and CultureInfo.CurrentUICulture for the duration of the test.

[Fact]
[Culture("fr-FR")]
public void FrenchLocaleTest()
{
    var msg = ErrorMessages.ValidationFailed;
    // Verify localized message
}

[DoNotParallelize] & Resource Constraints

For controlling concurrency, see Sequential & Parallel Execution and Resource Constraints.