public async Task SelectAsync_WithCatchAll_NoMatch()
{
// Arrange
var actions = new ActionDescriptor[]
{
CreateAction(area: null, controller: "Store", action: "Buy"),
CreateAction(area: null, controller: "Store", action: "Buy"),
CreateAction(area: null, controller: "Store", action: "Buy"),
};
actions[0].RouteConstraints.Add(new RouteDataActionConstraint("country", "CA"));
actions[1].RouteConstraints.Add(new RouteDataActionConstraint("country", "US"));
actions[2].RouteConstraints.Add(RouteDataActionConstraint.CreateCatchAll("country"));
var selector = CreateSelector(actions);
var context = CreateRouteContext("GET");
context.RouteData.Values.Add("controller", "Store");
context.RouteData.Values.Add("action", "Buy");
// Act
var action = await selector.SelectAsync(context);
// Assert
Assert.Null(action);
}
private static void AddControllerRouteConstraints(
ControllerActionDescriptor actionDescriptor,
IList <RouteConstraintAttribute> routeconstraints,
ISet <string> removalConstraints)
{
// Apply all the constraints defined on the controller (for example, [Area]) to the actions
// in that controller. Also keep track of all the constraints that require preventing actions
// without the constraint to match. For example, actions without an [Area] attribute on their
// controller should not match when a value has been given for area when matching a url or
// generating a link.
foreach (var constraintAttribute in routeconstraints)
{
if (constraintAttribute.BlockNonAttributedActions)
{
removalConstraints.Add(constraintAttribute.RouteKey);
}
// Skip duplicates
if (!HasConstraint(actionDescriptor.RouteConstraints, constraintAttribute.RouteKey))
{
if (constraintAttribute.RouteKeyHandling == RouteKeyHandling.CatchAll)
{
actionDescriptor.RouteConstraints.Add(
RouteDataActionConstraint.CreateCatchAll(
constraintAttribute.RouteKey));
}
else
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
constraintAttribute.RouteKey,
constraintAttribute.RouteValue));
}
}
}
}
/// <summary>
/// Create a catch all constraint for the given key.
/// </summary>
/// <param name="routeKey">Route key.</param>
/// <returns>a <see cref="RouteDataActionConstraint"/> that represents a catch all constraint.</returns>
public static RouteDataActionConstraint CreateCatchAll(string routeKey)
{
var c = new RouteDataActionConstraint(routeKey);
c.KeyHandling = RouteKeyHandling.CatchAll;
c.RouteValue = string.Empty;
return c;
}
/// <summary>
/// Create a catch all constraint for the given key.
/// </summary>
/// <param name="routeKey">Route key.</param>
/// <returns>a <see cref="RouteDataActionConstraint"/> that represents a catch all constraint.</returns>
public static RouteDataActionConstraint CreateCatchAll(string routeKey)
{
var c = new RouteDataActionConstraint(routeKey);
c.KeyHandling = RouteKeyHandling.CatchAll;
c.RouteValue = string.Empty;
return(c);
}
public static void AddRouteConstraints(
ISet <string> removalConstraints,
ControllerActionDescriptor actionDescriptor,
ControllerModel controller,
ActionModel action)
{
// Apply all the constraints defined on the action, then controller (for example, [Area])
// to the actions. Also keep track of all the constraints that require preventing actions
// without the constraint to match. For example, actions without an [Area] attribute on their
// controller should not match when a value has been given for area when matching a url or
// generating a link.
foreach (var constraintAttribute in action.RouteConstraints)
{
if (constraintAttribute.BlockNonAttributedActions)
{
removalConstraints.Add(constraintAttribute.RouteKey);
}
// Skip duplicates
if (!HasConstraint(actionDescriptor.RouteConstraints, constraintAttribute.RouteKey))
{
if (constraintAttribute.RouteKeyHandling == RouteKeyHandling.CatchAll)
{
actionDescriptor.RouteConstraints.Add(
RouteDataActionConstraint.CreateCatchAll(
constraintAttribute.RouteKey));
}
else
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
constraintAttribute.RouteKey,
constraintAttribute.RouteValue));
}
}
}
foreach (var constraintAttribute in controller.RouteConstraints)
{
if (constraintAttribute.BlockNonAttributedActions)
{
removalConstraints.Add(constraintAttribute.RouteKey);
}
// Skip duplicates - this also means that a value on the action will take precedence
if (!HasConstraint(actionDescriptor.RouteConstraints, constraintAttribute.RouteKey))
{
if (constraintAttribute.RouteKeyHandling == RouteKeyHandling.CatchAll)
{
actionDescriptor.RouteConstraints.Add(
RouteDataActionConstraint.CreateCatchAll(
constraintAttribute.RouteKey));
}
else
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
constraintAttribute.RouteKey,
constraintAttribute.RouteValue));
}
}
}
// Lastly add the 'default' values
if (!HasConstraint(actionDescriptor.RouteConstraints, "action"))
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"action",
action.ActionName ?? string.Empty));
}
if (!HasConstraint(actionDescriptor.RouteConstraints, "controller"))
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"controller",
controller.ControllerName));
}
}