Deterministic simulation testing
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Deterministic simulation testing (DST) is a type of software testing for testing distributed systems.
It is used to test the FoundationDB and Turso databases.
A global seed for randomness is used.
In Python the random number generator can be seeded using the seed function in the random module.[1]
random.seed(42)
On the .NET platform a instance of the Random class can be seeded by providing a seed to the constructor.[2]
var random = new Random(42);
On the .NET platform the FakeTimeProvider[3] class can be used which derives from the TimeProvider abstract class.[4]
var datetime = new DateTime(1969, 07, 20);
var time = new FakeTimeProvider(datetime);
internal class Foo(TimeProvider timeProvider)
{
// ...
}
In other programming languages a mock object can be used.
References
[edit]- ^ "random — Generate pseudo-random numbers". Python documentation. Retrieved 3 December 2024.
- ^ "Random Class (System)". learn.microsoft.com. Retrieved 3 December 2024.
- ^ "FakeTimeProvider Class (Microsoft.Extensions.Time.Testing)". learn.microsoft.com. Retrieved 3 December 2024.
- ^ "TimeProvider Class (System)". learn.microsoft.com.
External links
[edit]- https://notes.eatonphil.com/2024-08-20-deterministic-simulation-testing.html
- Jepsen - A framework for distributed systems verification, with fault injection
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