Chaos/Failure Testing Infrastructure

Module

__Tests

IMPLEMENTED

A chaos testing library exists for failure choreography and integration testing scenarios.

Failure Choreographer: src/__Tests/__Libraries/StellaOps.Testing.Chaos/FailureChoreographer.cs -- orchestrates failure injection sequences across distributed services, coordinating timed failures for integration tests.
Failure Injector Interface: src/__Tests/__Libraries/StellaOps.Testing.Chaos/IFailureInjector.cs -- contract for failure injection strategies (network partition, service crash, resource exhaustion).
Convergence Tracker Interface: src/__Tests/__Libraries/StellaOps.Testing.Chaos/IConvergenceTracker.cs -- tracks system convergence after failure injection, verifying the system recovers to a consistent state within a timeout.
Chaos Models: src/__Tests/__Libraries/StellaOps.Testing.Chaos/Models.cs -- data models for failure scenarios, injection points, and convergence results.
Tests: src/__Tests/__Libraries/StellaOps.Testing.Chaos.Tests/FailureChoreographerTests.cs, FailureInjectorTests.cs, ConvergenceTrackerTests.cs

Configure a FailureChoreographer with a network partition scenario and verify it injects the failure at the specified time and restores connectivity after the duration
Inject a service crash via IFailureInjector and verify IConvergenceTracker detects the system has not converged within the expected timeout
Inject a failure and verify the system eventually converges to a consistent state after the failure is removed
Run a choreographed sequence of 3 failures (network delay, service restart, resource exhaustion) and verify each failure is applied in order with correct timing
Verify the chaos tests are isolated and do not affect other test suites running in parallel