public async Task TestFailingUpdate()
{
var random = new Random();
var nonDefaultEnabledFeatureId = random.Next();
while (FeatureConfiguration.DefaultEnabledFeatureIds.Contains((FeatureId)nonDefaultEnabledFeatureId))
{
nonDefaultEnabledFeatureId = random.Next();
}
var dummyApiAccess = new DummyFeatureToggleApiAccess
{
ReturnValue = new List <FeatureDto>
{
new FeatureDto(nonDefaultEnabledFeatureId, "Test", null, new List <int>(), new List <int>())
}
};
IoCManager.RegisterInstance(typeof(IFeatureToggleApiAccess), dummyApiAccess);
IFeatureToggleRouter router = await FeatureToggleRouter.CreateAsync();
var feature0Observer = new CachingObserver <bool>();
router.IsFeatureEnabled((FeatureId)nonDefaultEnabledFeatureId).Subscribe(feature0Observer);
Assert.IsTrue(feature0Observer.Last);
// Make network fail, make sure no change is made and value doesn't revert to default
// state (disabled)
IoCManager.RegisterInstance(typeof(IFeatureToggleApiAccess), new ThrowingFeatureToggleApiAccess());
await router.RefreshEnabledFeaturesAsync();
Assert.IsTrue(feature0Observer.Last);
}
public async Task TestNetworkDown()
{
var throwingApiAccess = new ThrowingFeatureToggleApiAccess();
IoCManager.RegisterInstance(typeof(IFeatureToggleApiAccess), throwingApiAccess);
IFeatureToggleRouter router = await FeatureToggleRouter.CreateAsync();
foreach (var defaultEnabledFeatureId in FeatureConfiguration.DefaultEnabledFeatureIds)
{
var observer = new CachingObserver <bool>();
router.IsFeatureEnabled(defaultEnabledFeatureId).Subscribe(observer);
Assert.IsTrue(observer.Last);
}
// Now generate some random disabled features and check whether
// the router tells us that they are disabled
var random = new Random();
for (var i = 0; i < 10;)
{
var featureId = random.Next();
if (FeatureConfiguration.DefaultEnabledFeatureIds.Contains((FeatureId)featureId))
{
continue;
}
var observer = new CachingObserver <bool>();
router.IsFeatureEnabled((FeatureId)featureId).Subscribe(observer);
Assert.IsFalse(observer.Last);
i++;
}
}
public async Task TestSuccessfulUpdate()
{
var dummyApiAccess = new DummyFeatureToggleApiAccess
{
ReturnValue = new List <FeatureDto>
{
new FeatureDto(0, "Test", null, new List <int>(), new List <int>())
}
};
IoCManager.RegisterInstance(typeof(IFeatureToggleApiAccess), dummyApiAccess);
IFeatureToggleRouter router = await FeatureToggleRouter.CreateAsync();
var feature0Observer = new CachingObserver <bool>();
var feature1Observer = new CachingObserver <bool>();
router.IsFeatureEnabled(0).Subscribe(feature0Observer);
router.IsFeatureEnabled((FeatureId)1).Subscribe(feature1Observer);
Assert.IsTrue(feature0Observer.Last);
Assert.IsFalse(feature1Observer.Last);
// Swap feature states
dummyApiAccess.ReturnValue = new List <FeatureDto>
{
new FeatureDto(1, "Test", null, new List <int>(), new List <int>())
};
await router.RefreshEnabledFeaturesAsync();
Assert.IsFalse(feature0Observer.Last);
Assert.IsTrue(feature1Observer.Last);
}
