public async Task ShouldDelayOnChaos()
{
ChaosScenario noChaos = new ChaosScenario("No Chaos", failureRate: 0.0);
ChaosScenario delayChaos = new ChaosScenario("Full Chaos", delay: 10);
var sw = Stopwatch.StartNew();
// Expect no delays from Chaos that is not configured
sw.Restart();
ChaosMonkey.Chaos(noChaos);
Assert.Less(sw.ElapsedMilliseconds, 10, "No chaos resulted in an unexpected delay.");
sw.Restart();
await ChaosMonkey.ChaosAsync(noChaos);
Assert.Less(sw.ElapsedMilliseconds, 10, "No chaos resulted in an unexpected delay.");
// Expect delays from Chaos that is configured
sw.Restart();
ChaosMonkey.Chaos(delayChaos);
Assert.GreaterOrEqual(sw.ElapsedMilliseconds, 10, "No chaos resulted in an unexpected delay.");
sw.Restart();
await ChaosMonkey.ChaosAsync(delayChaos);
Assert.GreaterOrEqual(sw.ElapsedMilliseconds, 10, "No chaos resulted in an unexpected delay.");
}
public void LoadScenariosFromStaticFieldsShouldFindScenarios()
{
var actualScenarios = ChaosScenario.LoadScenariosFromStaticFields(typeof(TestChaosScenarios));
var expectedScenarios = new ChaosScenario[] { TestChaosScenarios.Scenario1, TestChaosScenarios.Scenario2, TestChaosScenarios.Scenario3 };
CollectionAssert.AreEqual(expectedScenarios, actualScenarios, "Unexpected mismatch of loaded ChaosScenarios");
}
public async Task ShouldThrowOnExpectedChaos()
{
ChaosScenario noChaos = new ChaosScenario("No Chaos", failureRate: 0.0);
ChaosScenario fullChaos = new ChaosScenario("Full Chaos", failureRate: 1.0);
// No exception is expected
ChaosMonkey.Chaos(noChaos);
await ChaosMonkey.ChaosAsync(noChaos);
Assert.Throws <ChaosException>(() => ChaosMonkey.Chaos(fullChaos));
Assert.ThrowsAsync <ChaosException>(async() => await ChaosMonkey.ChaosAsync(fullChaos));
}
public async Task ShouldNotThrowOrDelayWhenNotEnabled()
{
// Disable the monkey, it will be restored to its original state no matter what in TearDown.
ChaosMonkey.IsEnabled = false;
ChaosScenario fullChaos = new ChaosScenario("Full Chaos", failureRate: 1.0, delay: 1000);
var sw = Stopwatch.StartNew();
// Expect no delays or exceptions when disabled
sw.Restart();
ChaosMonkey.Chaos(fullChaos);
Assert.Less(sw.ElapsedMilliseconds, 10, "No chaos resulted in an unexpected delay.");
sw.Restart();
await ChaosMonkey.ChaosAsync(fullChaos);
Assert.Less(sw.ElapsedMilliseconds, 10, "No chaos resulted in an unexpected delay.");
}