private protected ActionEndpointDataSourceBase CreateDataSource(IActionDescriptorCollectionProvider actions = null)
{
if (actions == null)
{
actions = new DefaultActionDescriptorCollectionProvider(
Array.Empty <IActionDescriptorProvider>(),
Array.Empty <IActionDescriptorChangeProvider>());
}
var services = new ServiceCollection();
services.AddSingleton(actions);
var routeOptionsSetup = new MvcCoreRouteOptionsSetup();
services.Configure <RouteOptions>(routeOptionsSetup.Configure);
services.AddRouting(options =>
{
options.ConstraintMap["upper-case"] = typeof(UpperCaseParameterTransform);
});
var serviceProvider = services.BuildServiceProvider();
var endpointFactory = new ActionEndpointFactory(serviceProvider.GetRequiredService <RoutePatternTransformer>(), Enumerable.Empty <IRequestDelegateFactory>());
return(CreateDataSource(actions, endpointFactory));
}
private ActionConstraintMatcherPolicy CreateSelector(ActionDescriptor[] actions)
{
// We need to actually provide some actions with some action constraints metadata
// or else the policy will No-op.
var actionDescriptorProvider = new Mock <IActionDescriptorProvider>();
actionDescriptorProvider
.Setup(a => a.OnProvidersExecuted(It.IsAny <ActionDescriptorProviderContext>()))
.Callback <ActionDescriptorProviderContext>(c =>
{
for (var i = 0; i < actions.Length; i++)
{
c.Results.Add(actions[i]);
}
});
var actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new IActionDescriptorProvider[] { actionDescriptorProvider.Object, },
Enumerable.Empty <IActionDescriptorChangeProvider>());
var cache = new ActionConstraintCache(actionDescriptorCollectionProvider, new[]
{
new DefaultActionConstraintProvider(),
});
return(new ActionConstraintMatcherPolicy(cache));
}
public void ActionDescriptors_ReadsDescriptorsFromActionDescriptorProviders()
{
// Arrange
var expected1 = new ActionDescriptor();
var actionDescriptorProvider1 = GetActionDescriptorProvider(expected1);
var expected2 = new ActionDescriptor();
var expected3 = new ActionDescriptor();
var actionDescriptorProvider2 = GetActionDescriptorProvider(expected2, expected3);
var actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new[] { actionDescriptorProvider1, actionDescriptorProvider2 },
Enumerable.Empty <IActionDescriptorChangeProvider>());
// Act
var collection = actionDescriptorCollectionProvider.ActionDescriptors;
// Assert
Assert.Equal(0, collection.Version);
Assert.Collection(
collection.Items,
descriptor => Assert.Same(expected1, descriptor),
descriptor => Assert.Same(expected2, descriptor),
descriptor => Assert.Same(expected3, descriptor));
}
private static ActionConstraintCache CreateCache(params IActionConstraintProvider[] providers)
{
var descriptorProvider = new DefaultActionDescriptorCollectionProvider(
Enumerable.Empty <IActionDescriptorProvider>(),
Enumerable.Empty <IActionDescriptorChangeProvider>());
return(new ActionConstraintCache(descriptorProvider, providers));
}
private static ActionConstraintCache GetActionConstraintCache(IActionConstraintProvider[] actionConstraintProviders = null)
{
var descriptorProvider = new DefaultActionDescriptorCollectionProvider(
Enumerable.Empty <IActionDescriptorProvider>(),
Enumerable.Empty <IActionDescriptorChangeProvider>());
return(new ActionConstraintCache(descriptorProvider, actionConstraintProviders.AsEnumerable() ?? new List <IActionConstraintProvider>()));
}
public ControllerActionDescriptor InvokeActionSelector(RouteContext context)
{
var actionDescriptorProvider = GetActionDescriptorProvider();
var actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new[] { actionDescriptorProvider },
Enumerable.Empty <IActionDescriptorChangeProvider>());
var actionConstraintProviders = new[]
{
new DefaultActionConstraintProvider()
};
var actionSelector = CreateFinerGrainedActionSelector(actionDescriptorCollectionProvider, actionConstraintProviders);
var candidates = actionSelector.SelectCandidates(context);
return((ControllerActionDescriptor)actionSelector.SelectBestCandidate(context, candidates));
}
private ControllerActionDescriptor InvokeActionSelector(RouteContext context)
{
var actionDescriptorProvider = GetActionDescriptorProvider();
var actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new[] { actionDescriptorProvider },
Enumerable.Empty <IActionDescriptorChangeProvider>());
var actionConstraintProviders = new[]
{
new DefaultActionConstraintProvider(),
};
var actionSelector = new ActionSelector(
actionDescriptorCollectionProvider,
GetActionConstraintCache(actionConstraintProviders),
NullLoggerFactory.Instance);
var candidates = actionSelector.SelectCandidates(context);
return((ControllerActionDescriptor)actionSelector.SelectBestCandidate(context, candidates));
}
private MvcEndpointDataSource CreateMvcEndpointDataSource(
IActionDescriptorCollectionProvider actionDescriptorCollectionProvider = null,
MvcEndpointInvokerFactory mvcEndpointInvokerFactory = null)
{
if (actionDescriptorCollectionProvider == null)
{
actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
Array.Empty <IActionDescriptorProvider>(),
Array.Empty <IActionDescriptorChangeProvider>());
}
var services = new ServiceCollection();
services.AddSingleton(actionDescriptorCollectionProvider);
var dataSource = new MvcEndpointDataSource(
actionDescriptorCollectionProvider,
mvcEndpointInvokerFactory ?? new MvcEndpointInvokerFactory(new ActionInvokerFactory(Array.Empty <IActionInvokerProvider>())));
return(dataSource);
}
private MvcEndpointDataSource CreateMvcEndpointDataSource(
IActionDescriptorCollectionProvider actionDescriptorCollectionProvider = null,
MvcEndpointInvokerFactory mvcEndpointInvokerFactory = null)
{
if (actionDescriptorCollectionProvider == null)
{
actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
Array.Empty <IActionDescriptorProvider>(),
Array.Empty <IActionDescriptorChangeProvider>());
}
var services = new ServiceCollection();
services.AddSingleton(actionDescriptorCollectionProvider);
var routeOptionsSetup = new MvcCoreRouteOptionsSetup();
services.Configure <RouteOptions>(routeOptionsSetup.Configure);
services.AddRouting(options =>
{
options.ConstraintMap["upper-case"] = typeof(UpperCaseParameterTransform);
});
var serviceProvider = services.BuildServiceProvider();
var dataSource = new MvcEndpointDataSource(
actionDescriptorCollectionProvider,
mvcEndpointInvokerFactory ?? new MvcEndpointInvokerFactory(new ActionInvokerFactory(Array.Empty <IActionInvokerProvider>())),
serviceProvider.GetRequiredService <ParameterPolicyFactory>(),
serviceProvider.GetRequiredService <RoutePatternTransformer>());
var defaultEndpointConventionBuilder = new DefaultEndpointConventionBuilder();
dataSource.AttributeRoutingConventionResolvers.Add((actionDescriptor) =>
{
return(defaultEndpointConventionBuilder);
});
return(dataSource);
}
private static IActionDescriptorCollectionProvider CreateActionDescriptorCollectionProvider(ActionDescriptor actionDescriptor)
{
var actionProvider = new Mock <IActionDescriptorProvider>(MockBehavior.Strict);
actionProvider
.SetupGet(p => p.Order)
.Returns(-1000);
actionProvider
.Setup(p => p.OnProvidersExecuting(It.IsAny <ActionDescriptorProviderContext>()))
.Callback <ActionDescriptorProviderContext>(c => c.Results.Add(actionDescriptor));
actionProvider
.Setup(p => p.OnProvidersExecuted(It.IsAny <ActionDescriptorProviderContext>()))
.Verifiable();
var descriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new[] { actionProvider.Object },
Enumerable.Empty <IActionDescriptorChangeProvider>());
return(descriptorCollectionProvider);
}
private MvcEndpointDataSource CreateMvcEndpointDataSource(
IActionDescriptorCollectionProvider actionDescriptorCollectionProvider = null,
MvcEndpointInvokerFactory mvcEndpointInvokerFactory = null)
{
if (actionDescriptorCollectionProvider == null)
{
actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
Array.Empty <IActionDescriptorProvider>(),
Array.Empty <IActionDescriptorChangeProvider>());
}
var serviceProviderMock = new Mock <IServiceProvider>();
serviceProviderMock.Setup(m => m.GetService(typeof(IActionDescriptorCollectionProvider))).Returns(actionDescriptorCollectionProvider);
var dataSource = new MvcEndpointDataSource(
actionDescriptorCollectionProvider,
mvcEndpointInvokerFactory ?? new MvcEndpointInvokerFactory(new ActionInvokerFactory(Array.Empty <IActionInvokerProvider>())),
serviceProviderMock.Object);
return(dataSource);
}
public void ActionDescriptors_CachesValuesByDefault()
{
// Arrange
var actionDescriptorProvider = GetActionDescriptorProvider(new ActionDescriptor());
var actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new[] { actionDescriptorProvider },
Enumerable.Empty <IActionDescriptorChangeProvider>());
// Act - 1
var collection1 = actionDescriptorCollectionProvider.ActionDescriptors;
// Assert - 1
Assert.Equal(0, collection1.Version);
// Act - 2
var collection2 = actionDescriptorCollectionProvider.ActionDescriptors;
// Assert - 2
Assert.Same(collection1, collection2);
Mock.Get(actionDescriptorProvider)
.Verify(v => v.OnProvidersExecuting(It.IsAny <ActionDescriptorProviderContext>()), Times.Once());
}
public void ActionDescriptors_UpdatesAndResubscribes_WhenChangeTokenTriggers()
{
// Arrange
var actionDescriptorProvider = new Mock <IActionDescriptorProvider>();
var expected1 = new ActionDescriptor();
var expected2 = new ActionDescriptor();
var expected3 = new ActionDescriptor();
var invocations = 0;
actionDescriptorProvider
.Setup(p => p.OnProvidersExecuting(It.IsAny <ActionDescriptorProviderContext>()))
.Callback((ActionDescriptorProviderContext context) =>
{
if (invocations == 0)
{
context.Results.Add(expected1);
}
else if (invocations == 1)
{
context.Results.Add(expected2);
}
else
{
context.Results.Add(expected3);
}
invocations++;
});
var changeProvider = new TestChangeProvider();
var actionDescriptorCollectionProvider = new DefaultActionDescriptorCollectionProvider(
new[] { actionDescriptorProvider.Object },
new[] { changeProvider },
NullLogger <DefaultActionDescriptorCollectionProvider> .Instance);
// Act - 1
var changeToken1 = actionDescriptorCollectionProvider.GetChangeToken();
var collection1 = actionDescriptorCollectionProvider.ActionDescriptors;
ActionDescriptorCollection captured = null;
changeToken1.RegisterChangeCallback((_) =>
{
captured = actionDescriptorCollectionProvider.ActionDescriptors;
}, null);
// Assert - 1
Assert.False(changeToken1.HasChanged);
Assert.Equal(0, collection1.Version);
Assert.Collection(collection1.Items,
item => Assert.Same(expected1, item));
// Act - 2
changeProvider.TokenSource.Cancel();
var changeToken2 = actionDescriptorCollectionProvider.GetChangeToken();
var collection2 = actionDescriptorCollectionProvider.ActionDescriptors;
changeToken2.RegisterChangeCallback((_) =>
{
captured = actionDescriptorCollectionProvider.ActionDescriptors;
}, null);
// Assert - 2
Assert.NotSame(changeToken1, changeToken2);
Assert.True(changeToken1.HasChanged);
Assert.False(changeToken2.HasChanged);
Assert.NotSame(collection1, collection2);
Assert.NotNull(captured);
Assert.Same(captured, collection2);
Assert.Equal(1, collection2.Version);
Assert.Collection(collection2.Items,
item => Assert.Same(expected2, item));
// Act - 3
changeProvider.TokenSource.Cancel();
var changeToken3 = actionDescriptorCollectionProvider.GetChangeToken();
var collection3 = actionDescriptorCollectionProvider.ActionDescriptors;
// Assert - 3
Assert.NotSame(changeToken2, changeToken3);
Assert.True(changeToken2.HasChanged);
Assert.False(changeToken3.HasChanged);
Assert.NotSame(collection2, collection3);
Assert.NotNull(captured);
Assert.Same(captured, collection3);
Assert.Equal(2, collection3.Version);
Assert.Collection(collection3.Items,
item => Assert.Same(expected3, item));
}