public async Task GetOrCreateInstanceAsync_InstanceDoesNotAlreadyExist_CreatesNewInstance()
{
// Arrange
var key = "test-flow";
var stateType = typeof(TestState);
var state = new TestState();
var flowDescriptor = new FormFlowDescriptor(key, stateType, IdGenerationSource.RandomId);
var stateProvider = new InMemoryInstanceStateProvider();
var httpContext = new DefaultHttpContext();
var routeData = new RouteData();
var actionDescriptor = new ActionDescriptor();
actionDescriptor.SetProperty(flowDescriptor);
var actionContext = new ActionContext(httpContext, routeData, actionDescriptor);
var instanceFactory = new FormFlowInstanceFactory(flowDescriptor, actionContext, stateProvider);
var newState = new TestState();
// Act
var instance = await instanceFactory.GetOrCreateInstanceAsync(() => Task.FromResult(newState));
// Assert
Assert.NotNull(instance);
Assert.Same(newState, instance.State);
}
public void CreateInstance_CreatesInstanceWithStateProvider()
{
// Arrange
var key = "test-flow";
var stateType = typeof(TestState);
var flowDescriptor = new FormFlowDescriptor(key, stateType, IdGenerationSource.RandomId);
var httpContext = new DefaultHttpContext();
var routeData = new RouteData();
var actionDescriptor = new ActionDescriptor();
actionDescriptor.SetProperty(flowDescriptor);
var actionContext = new ActionContext(httpContext, routeData, actionDescriptor);
var stateProvider = new InMemoryInstanceStateProvider();
var instanceFactory = new FormFlowInstanceFactory(flowDescriptor, actionContext, stateProvider);
var state = new TestState();
var properties = new Dictionary <object, object>()
{
{ "foo", 42 },
{ "bar", "baz" }
};
// Act
var instance = instanceFactory.CreateInstance(state, properties);
// Assert
Assert.NotNull(instance);
Assert.Equal(key, instance.Key);
Assert.Equal(stateType, instance.StateType);
Assert.Same(state, instance.State);
Assert.Equal(2, instance.Properties.Count);
Assert.Equal(42, instance.Properties["foo"]);
Assert.Equal("baz", instance.Properties["bar"]);
var feature = httpContext.Features.Get <FormFlowInstanceFeature>();
Assert.NotNull(feature);
Assert.Same(instance, feature.Instance);
}
public async Task GetOrCreateInstanceAsync_InstanceAlreadyExists_ReturnsExistingInstance()
{
// Arrange
var key = "test-flow";
var stateType = typeof(TestState);
var state = new TestState();
var flowDescriptor = new FormFlowDescriptor(key, stateType, IdGenerationSource.RandomId);
var stateProvider = new InMemoryInstanceStateProvider();
var instanceId = FormFlowInstanceId.GenerateForRandomId();
var existingInstance = FormFlowInstance.Create(
stateProvider,
key,
instanceId,
stateType,
state,
new Dictionary <object, object>());
var httpContext = new DefaultHttpContext();
httpContext.Features.Set(new FormFlowInstanceFeature(existingInstance));
var routeData = new RouteData();
var actionDescriptor = new ActionDescriptor();
actionDescriptor.SetProperty(flowDescriptor);
var actionContext = new ActionContext(httpContext, routeData, actionDescriptor);
var instanceFactory = new FormFlowInstanceFactory(flowDescriptor, actionContext, stateProvider);
// Act
var instance = await instanceFactory.GetOrCreateInstanceAsync(() => Task.FromResult(new TestState()));
// Assert
Assert.Same(existingInstance, instance);
}
public void CreateInstance_RouteValuesIdGenerationSource_CreatesInstanceWithGeneratedId()
{
// Arrange
var key = "test-flow";
var stateType = typeof(TestState);
var flowDescriptor = new FormFlowDescriptor(
key,
stateType,
IdGenerationSource.RouteValues,
idRouteParameterNames: new[] { "id1", "id2" });
var httpContext = new DefaultHttpContext();
var routeData = new RouteData(new RouteValueDictionary()
{
{ "id1", "foo" },
{ "id2", "bar" }
});
var actionDescriptor = new ActionDescriptor();
actionDescriptor.SetProperty(flowDescriptor);
var actionContext = new ActionContext(httpContext, routeData, actionDescriptor);
var stateProvider = new InMemoryInstanceStateProvider();
var instanceFactory = new FormFlowInstanceFactory(flowDescriptor, actionContext, stateProvider);
var state = new TestState();
// Act
var instance = instanceFactory.CreateInstance(state);
// Assert
Assert.NotNull(instance);
Assert.Equal("test-flow?id1=foo&id2=bar", instance.InstanceId);
}